Trojan.Urelas.LB
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.Urelas.LB |
|---|---|
| Signature status: | Modified signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
8325d7ad9f68d0ab046f997640e036e0
SHA1:
a414f49a42676700b4cf88cddefdb45279228877
SHA256:
A40C788DD22E5C530DBFF7D9B40D97C6B8558C2F831575F847EA3D796C54571F
File Size:
697.38 KB, 697376 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | Bkav Corporation |
| File Description | Chim Lac Update Setup |
| File Version | 1.3.27.17 |
| Internal Name | Chim Lac Update Setup |
| Language Id | en |
| Legal Copyright | Copyright 2013 Bkav Corporation |
| Original Filename | ChimLacUpdateSetup.exe |
| Product Name | Chim Lac Update |
| Product Version | 1.3.27.17 |
File Traits
- HighEntropy
- Installer Version
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 283 |
|---|---|
| Potentially Malicious Blocks: | 4 |
| Whitelisted Blocks: | 279 |
| Unknown Blocks: | 0 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| \device\namedpipe\wkssvc | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_update.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_am.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ar.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_bg.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_bn.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ca.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_cs.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_da.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_de.dll | Generic Write,Read Attributes |
Show More
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_el.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_en-gb.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_en.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_es-419.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_es.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_et.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_fa.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_fi.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_fil.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_fr.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_gu.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_hi.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_hr.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_hu.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_id.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_is.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_it.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_iw.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ja.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_kn.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ko.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_lt.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_lv.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ml.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_mr.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ms.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_nl.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_no.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_pl.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_pt-br.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_pt-pt.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ro.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ru.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_sk.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_sl.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_sr.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_sv.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_sw.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ta.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_te.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_th.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_tr.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_uk.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_ur.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_vi.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_zh-cn.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlac_updateres_zh-tw.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlaccrashhandler.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlacupdate.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlacupdatebroker.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlacupdatehelper.msi | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\chimlacupdateondemand.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\npchimlacupdate3.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\psmachine.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gum5dd0.tmp\psuser.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\gut5dd1.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\microsoft\systemcertificates\authroot\certificates\e12dfb4b41d7d9c32b30514bac1d81d8385e2d46::blob | RegNtPreCreateKey | |
| HKLM\software\microsoft\systemcertificates\authroot\certificates\4eb6d578499b1ccf5f581ead56be3d9b6744a5e5::blob | ់㹧ৢ䗾鍗ᳺ ứ霞輫穆轙⊩㢅즔S c 愰ℰଆ虠ňŅᜇ〆〒ؐ⬊ĆĄ㞂ļ́ダ؟怉䢆蘁泽ĂሰူਆثЁ舁㰷āȃ쀀ᬰԆ腧Č〃〒ؐ⬊ĆĄ㞂ļ́翀 Ā ⨀ ب⬈Ćԅ̇⬈Ćԅ̇⬈Ćԅ̇⬈Ćԅ̇ँ Ā ⨀ ب⬈Ćԅ̇⬈Ćԅ | RegNtPreCreateKey |
| HKLM\software\microsoft\systemcertificates\authroot\certificates\4eb6d578499b1ccf5f581ead56be3d9b6744a5e5::blob | RegNtPreCreateKey | |
| HKLM\software\microsoft\systemcertificates\authroot\certificates\e12dfb4b41d7d9c32b30514bac1d81d8385e2d46::blob | RegNtPreCreateKey | |
| HKLM\software\microsoft\systemcertificates\authroot\certificates\e12dfb4b41d7d9c32b30514bac1d81d8385e2d46::blob | RegNtPreCreateKey | |
| HKLM\software\microsoft\systemcertificates\authroot\certificates\e12dfb4b41d7d9c32b30514bac1d81d8385e2d46::blob | RegNtPreCreateKey | |
| HKCU\software\bkav corporation\update\clientstate\{c21db7bf-3628-4ce1-9f47-f9791edd51fd}::usagestats | RegNtPreCreateKey | |
| HKCU\software\bkav corporation\update::uid | {398657BF-9281-43AF-A051-570E0DDF81B7} | RegNtPreCreateKey |
| HKCU\software\bkav corporation\update\usagestats\daily::lasttransmission | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Process Manipulation Evasion |
|
| Process Shell Execute |
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| Encryption Used |
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| Cert Store Read |
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| Anti Debug |
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| User Data Access |
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| Other Suspicious |
|
Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\Users\Bolylydw\AppData\Local\Temp\GUM5DD0.tmp\ChimLacUpdate.exe /installsource taggedmi /install "appguid={C21DB7BF-3628-4CE1-9F47-F9791EDD51FD}&needsadmin=False&lang=vi&usagestats=1&channel=stable"
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"C:\Users\Bolylydw\AppData\Local\Bkav Corporation\Update\ChimLacUpdate.exe" /unregserver
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