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Windows
Analysis Report
PfvmSWvg37.exe
Overview
General Information
Sample name: | PfvmSWvg37.exerenamed because original name is a hash value |
Original sample name: | 5b3f897f171792e4344daafcb64ddbc9.exe |
Analysis ID: | 1534828 |
MD5: | 5b3f897f171792e4344daafcb64ddbc9 |
SHA1: | ac46ed038de388544996336f6c75d9a89466eb6c |
SHA256: | 2011ac0f9ebde9f327f7c34ba031087880ab2395233532b86039c6097f2673ab |
Tags: | exeuser-abuse_ch |
Infos: | |
Detection
PureLog Stealer, RedLine, zgRAT
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected zgRAT
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Creates multiple autostart registry keys
Downloads files with wrong headers with respect to MIME Content-Type
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Checks if the current process is being debugged
Contains functionality to call native functions
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found inlined nop instructions (likely shell or obfuscated code)
HTTP GET or POST without a user agent
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
One or more processes crash
PE file contains executable resources (Code or Archives)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- PfvmSWvg37.exe (PID: 5036 cmdline:
"C:\Users\ user\Deskt op\PfvmSWv g37.exe" MD5: 5B3F897F171792E4344DAAFCB64DDBC9) - justleadership.exe (PID: 6176 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\IXP000. TMP\justle adership.e xe MD5: D84496A9A986A9425B66D64560D8F1E1) - justleadership.exe (PID: 6412 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\IXP000 .TMP\justl eadership. exe" MD5: D84496A9A986A9425B66D64560D8F1E1) - conhost.exe (PID: 6620 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - neverlocation.exe (PID: 7056 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\IXP000. TMP\neverl ocation.ex e MD5: 6D8FC0C94071E8CAD98F05E7AA238568) - MSBuild.exe (PID: 4256 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) - WerFault.exe (PID: 7092 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 4 256 -s 114 4 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- rundll32.exe (PID: 1412 cmdline:
"C:\Window s\system32 \rundll32. exe" C:\Wi ndows\syst em32\advpa ck.dll,Del NodeRunDLL 32 "C:\Use rs\user\Ap pData\Loca l\Temp\IXP 000.TMP\" MD5: EF3179D498793BF4234F708D3BE28633)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
RedLine Stealer | RedLine Stealer is a malware available on underground forums for sale apparently as a standalone ($100/$150 depending on the version) or also on a subscription basis ($100/month). This malware harvests information from browsers such as saved credentials, autocomplete data, and credit card information. A system inventory is also taken when running on a target machine, to include details such as the username, location data, hardware configuration, and information regarding installed security software. More recent versions of RedLine added the ability to steal cryptocurrency. FTP and IM clients are also apparently targeted by this family, and this malware has the ability to upload and download files, execute commands, and periodically send back information about the infected computer. | No Attribution |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
zgRAT | zgRAT is a Remote Access Trojan malware which sometimes drops other malware such as AgentTesla malware. zgRAT has an inforstealer use which targets browser information and cryptowallets.Usually spreads by USB or phishing emails with -zip/-lnk/.bat/.xlsx attachments and so on. | No Attribution |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
Click to see the 7 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_zgRAT_1 | Yara detected zgRAT | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
MALWARE_Win_zgRAT | Detects zgRAT | ditekSHen |
| |
Click to see the 6 entries |
System Summary |
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Source: | Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): |
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 2_2_068ECA80 | |
Source: | Code function: | 2_2_068ED1F8 | |
Source: | Code function: | 2_2_068ECA70 | |
Source: | Code function: | 2_2_068ED1EB | |
Source: | Code function: | 2_2_06A2FA28 | |
Source: | Code function: | 2_2_06A2FA19 | |
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Source: | Code function: | 9_2_066614B0 | |
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Source: | Code function: | 9_2_066615A0 | |
Source: | Code function: | 9_2_068CE730 | |
Source: | Code function: | 9_2_068CE720 |
Networking |
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Source: | Bad PDF prefix: |