PUP.Ypack.G
Table of Contents
Analysis Report
General information
| Family Name: | PUP.Ypack.G |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a60fdf3e7f210df8bcf88ada72ea4d37
SHA1:
6ee3a987da24315e7c55c9ff553dfcccd4b30dde
SHA256:
7A0E69DFAFF537A07A35DC175BFB97E7C1CE6821FBF9F60425F17128E7DCE5EA
File Size:
1.67 MB, 1669272 bytes
|
|
MD5:
e5bd37f0959c7dafcef38b3c6008426c
SHA1:
25967bf79c0d97b71e3574507585366cbe45e6d1
SHA256:
0DACE7DB029DAD76F265330BB7FB761495380A05A5251C48FF67B92967AE5824
File Size:
1.53 MB, 1527600 bytes
|
|
MD5:
6a52a1209ea9d89fd06ebb5d8e32a4f3
SHA1:
301ed962cdc0312fd27d862762de31adf415671b
SHA256:
3C2E345182EEDBA58A95DCA6C98F86FC87A760A9BD6C9E5F85659618966420A7
File Size:
1.53 MB, 1532080 bytes
|
|
MD5:
3f02d4ebe6f56417745fe92ab4573c3e
SHA1:
f3ef218c6f167e35d7e10f5ab522935cc3dd65ec
SHA256:
7B31E908A3CE2FAC394BC1F42B92304A6622A06600A015014E20C69D780345BE
File Size:
1.53 MB, 1528496 bytes
|
|
MD5:
a0f5c561bf1352a746f344b0afc0c928
SHA1:
e3149d5a68fb50e6ee6ebf3e7d30286284243927
SHA256:
76776C2B3F883EA7DB831173D39278E3EF50882BBC2D54F75B3C724CC632B1FB
File Size:
4.02 MB, 4021912 bytes
|
Show More
|
MD5:
d49437077108b9913656b1245a9ea0c1
SHA1:
e5138c14ac71593b73c883cb26c8ec3eddcd6266
SHA256:
00F39BF6E50A1ECC3453BCE0C5A2ABA3C4FB6CD0E8F55BAAC6B07BA255E2D020
File Size:
4.06 MB, 4056240 bytes
|
|
MD5:
e10a54618e55f01a41d7a92082cd23e9
SHA1:
56b0306b67f5265536dfdc7db0a582c24aa7fe47
SHA256:
64608681CEA537A4189B89FE6F0B9E5068D6D3F70C0DB3102829E0DE171E8253
File Size:
1.61 MB, 1609904 bytes
|
|
MD5:
a798d32210517deba0f1fb20133e09bd
SHA1:
716844ed935658ad0d2d7bde2e6e8876b5d18525
SHA256:
1B7ADB7780330A885EFD753D24BA370B51CF0DB9E147850B6D4426C72EC45E58
File Size:
3.34 MB, 3340464 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File has exports table
- File has TLS information
- 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 | YANDEX LLC |
| Company Short Name | YANDEX LLC |
| File Description |
|
| File Version |
|
| Internal Name |
|
| Last Change |
|
| Legal Copyright |
|
| Official Build | 1 |
| Original Filename | notification_helper.exe |
| Product Chromium Version |
|
| Product Name | Yandex |
| Product Short Name | Yandex |
| Product Version |
|
| Product Yandex Version |
|
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| YANDEX LLC | GlobalSign Code Signing Root R45 | Root Not Trusted |
| YANDEX LLC | GlobalSign GCC R45 EV CodeSigning CA 2020 | Self Signed |
File Traits
- 2+ executable sections
- HighEntropy
- Installer Version
- ntdll
- WriteProcessMemory
- 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: | 9,830 |
|---|---|
| Potentially Malicious Blocks: | 103 |
| Whitelisted Blocks: | 7,365 |
| Unknown Blocks: | 2,362 |
Visual Map
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0
?
0
?
0
0
?
?
0
?
?
0
0
?
?
0
0
0
0
0
?
?
?
?
0
x
?
0
0
0
0
x
0
0
0
?
0
0
?
0
0
?
0
?
0
0
?
...
Data truncated
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 |
|---|---|
| c:\program files (x86) | Read Attributes,Synchronize,Write Data |
| c:\programdata\yandex\yandexbrowser\service_update.log | Read Attributes,Synchronize,Append data |
| c:\users\user\appdata\local\temp\yandex_browser_installer.log | Read Attributes,Synchronize,Append data |
| c:\windows\systemtemp | Read Attributes,Synchronize,Write 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 |
|---|---|---|
| HKCU\software\yandex\yandexbrowser::ap | RegNtPreCreateKey |
