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Windows
Analysis Report
Art_Spec. 4008670601 AZTEK Order _ 7.3.2024.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected FormBook
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Adds a directory exclusion to Windows Defender
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
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 for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates processes with suspicious names
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Powershell Defender Exclusion
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- Art_Spec. 4008670601 AZTEK Order _ 7.3.2024.exe (PID: 2136 cmdline:
"C:\Users\ user\Deskt op\Art_Spe c. 4008670 601 AZTEK Order _ 7. 3.2024.exe " MD5: 7C33FB31E0B8302EBA116A02E649200B) - powershell.exe (PID: 1432 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\Des ktop\Art_S pec. 40086 70601 AZTE K Order _ 7.3.2024.e xe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 6332 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - Art_Spec. 4008670601 AZTEK Order _ 7.3.2024.exe (PID: 2012 cmdline:
"C:\Users\ user\Deskt op\Art_Spe c. 4008670 601 AZTEK Order _ 7. 3.2024.exe " MD5: 7C33FB31E0B8302EBA116A02E649200B) - EUSOiCcoIEEJJ.exe (PID: 2084 cmdline:
"C:\Progra m Files (x 86)\odwsgn gViRYKyJqZ XdTIjyeOqe eFpWdVedwg xEUjBOUgmN VeyCCwHnPI hqdBxblppH mpjV\EUSOi CcoIEEJJ.e xe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - compact.exe (PID: 5644 cmdline:
"C:\Window s\SysWOW64 \compact.e xe" MD5: 5CB107F69062D6D387F4F7A14737220E) - EUSOiCcoIEEJJ.exe (PID: 6800 cmdline:
"C:\Progra m Files (x 86)\odwsgn gViRYKyJqZ XdTIjyeOqe eFpWdVedwg xEUjBOUgmN VeyCCwHnPI hqdBxblppH mpjV\EUSOi CcoIEEJJ.e xe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - firefox.exe (PID: 404 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 11 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
|
System Summary |
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Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 10_2_02E2C170 |
Source: | Code function: | 10_2_02E196F0 | |
Source: | Code function: | 10_2_034E053F |
Networking |
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