PUP.Baidu.A
Table of Contents
Analysis Report
General information
| Family Name: | PUP.Baidu.A |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a2b5ea80c664ecc90fdc51b167473831
SHA1:
59150fdf9d7e0db717d37c91123c26913a5f5195
SHA256:
4ED646E8479D320801E9CBBE6CCCDF95C4594DAB1583A4E2A0855FC1E3BE161F
File Size:
493.58 KB, 493576 bytes
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MD5:
ae15de52d9e73318019235bda5510785
SHA1:
ed1fb1806685e8e46762262336db37ae41efa5b9
SHA256:
CE8FA4AB181503378D34597031BE8D9F58E6B0909E6C873CE066FD9A1965FD63
File Size:
541.42 KB, 541424 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations 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)
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- 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 |
|---|---|
| File Description |
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| File Version |
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| Legal Copyright |
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| Product Name |
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| Product Version |
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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 |
|---|---|---|
| Baidu (China) Co., Ltd. | GlobalSign CodeSigning CA - G2 | Root Not Trusted |
| Shenzhen Enode Technology Co., Ltd. | VeriSign Class 3 Code Signing 2010 CA | Root Not Trusted |
File Traits
- dll
- x86
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:\users\user\appdata\local\temp\nsabcbe.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\nsla72d.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\nsla817.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\nsla818.tmp\installoptions.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsla818.tmp\iospecial.ini | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\nsla818.tmp\iospecial.ini | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsla818.tmp\modern-header.bmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsla818.tmp\modern-wizard.bmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsla818.tmp\nsskinengine.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsla818.tmp\system.dll | Generic Write,Read Attributes |
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| c:\users\user\appdata\local\temp\nslbde8.tmp\installoptions.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbde8.tmp\iospecial.ini | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\nslbde8.tmp\iospecial.ini | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbde8.tmp\modern-header.bmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbde8.tmp\modern-wizard.bmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbde8.tmp\nsskinengine.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbde8.tmp\system.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nswbdd8.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\~nsu.tmp\au_.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
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\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Ztmvhdnv\AppData\Local\Temp\~nsu.tmp\Au_.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Ztmvhdnv\AppData\Local\Temp\~nsu.tmp\Au_.exe \??\C:\Users\Ztmvhdnv\AppData\Local\Temp\~nsu.tmp | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | *1\??\C:\Windows\SystemTemp\MicrosoftEdgeUpdate.exe.old5af52 *1\??\C:\Windows\SystemTemp\CopilotUpdate.exe.old5af62 *1\??\C:\P | 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 Shell Execute |
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| Other Suspicious |
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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\Ztmvhdnv\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=c:\users\user\downloads\
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"C:\Users\Uubgfxgz\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=c:\users\user\downloads\
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