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Windows
Analysis Report
SecuriteInfo.com.FileRepMalware.3248.17662.exe
Overview
General Information
Detection
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Yara detected AntiVM3
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Downloads files with wrong headers with respect to MIME Content-Type
Drops VBS files to the startup folder
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)
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 dynamically determine API calls
Contains functionality to shutdown / reboot the system
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found evasive API chain checking for process token information
HTTP GET or POST without a user agent
May sleep (evasive loops) to hinder dynamic analysis
One or more processes crash
PE file contains executable resources (Code or Archives)
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
Stores files to the Windows start menu directory
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Classification
- System is w10x64
- SecuriteInfo.com.FileRepMalware.3248.17662.exe (PID: 4136 cmdline:
"C:\Users\ user\Deskt op\Securit eInfo.com. FileRepMal ware.3248. 17662.exe" MD5: 485927FE0C19012F31F1EF565254B374) - seniorcommunicate.exe (PID: 6752 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\IXP000. TMP\senior communicat e.exe MD5: D9021E407CD5133BA842A9F6F21B606B) - InstallUtil.exe (PID: 3796 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Ins tallUtil.e xe" MD5: 5D4073B2EB6D217C19F2B22F21BF8D57) - WerFault.exe (PID: 4620 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 3 796 -s 117 2 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- rundll32.exe (PID: 5388 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
⊘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_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_AntiVM_3 | Yara detected AntiVM_3 | Joe Security | ||
Click to see the 1 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_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security |
Source: | Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): |
Data Obfuscation |
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Source: | Author: Joe Security: |
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: |
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Source: | ReversingLabs: | ||
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Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: |
Source: | Joe Sandbox ML: |
Source: | Code function: | 0_2_00007FF71D1D30EC |
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Source: | Code function: | 0_2_00007FF71D1D204C |
Networking |
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Source: | Bad PDF prefix: |