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Windows
Analysis Report
P1 HWT623ATG.bat.exe
Overview
General Information
Detection
FormBook, GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Sigma detected: Scheduled temp file as task from temp location
Yara detected AntiVM3
Yara detected FormBook
Yara detected GuLoader
.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)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
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)
Obfuscated command line found
Performs DNS queries to domains with low reputation
Powershell drops PE file
Queues an APC in another process (thread injection)
Sample is not signed and drops a device driver
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Allocates memory with a write watch (potentially for evading sandboxes)
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 detect virtual machines (SLDT)
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates driver files
Detected potential crypto function
Downloads executable code via HTTP
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 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: Potential Dosfuscation Activity
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Sigma detected: Use Short Name Path in Command Line
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- P1 HWT623ATG.bat.exe (PID: 5064 cmdline:
"C:\Users\ user\Deskt op\P1 HWT6 23ATG.bat. exe" MD5: CFD86B8016C2604EA4B9CF22E6316E22) - powershell.exe (PID: 6468 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\P1 HW T623ATG.ba t.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 4456 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 6388 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\GnVIdcf KFYG.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7060 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WmiPrvSE.exe (PID: 1648 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) - schtasks.exe (PID: 3212 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\GnVI dcfKFYG" / XML "C:\Us ers\user\A ppData\Loc al\Temp\tm pC293.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 4888 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - P1 HWT623ATG.bat.exe (PID: 4340 cmdline:
"C:\Users\ user\Deskt op\P1 HWT6 23ATG.bat. exe" MD5: CFD86B8016C2604EA4B9CF22E6316E22) - hCVJFOyzXcYEeTIAROhZtqYPJEhCFf.exe (PID: 6688 cmdline:
"C:\Progra m Files (x 86)\jdRyKW mwNGLqUAxz bgMyHhSVQE BNjCyVpYAO hUIcfzFG\h CVJFOyzXcY EeTIAROhZt qYPJEhCFf. exe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - compact.exe (PID: 7628 cmdline:
"C:\Window s\SysWOW64 \compact.e xe" MD5: 5CB107F69062D6D387F4F7A14737220E) - hCVJFOyzXcYEeTIAROhZtqYPJEhCFf.exe (PID: 4300 cmdline:
"C:\Progra m Files (x 86)\jdRyKW mwNGLqUAxz bgMyHhSVQE BNjCyVpYAO hUIcfzFG\h CVJFOyzXcY EeTIAROhZt qYPJEhCFf. exe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - firefox.exe (PID: 7892 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045) - bfc.exe (PID: 1252 cmdline:
"C:\Users\ user~1\App Data\Local \Temp\bfc. exe" MD5: 9468614D3915F76CE938B93A123E9043) - powershell.exe (PID: 1532 cmdline:
"powershel l.exe" -wi ndowstyle hidden "$A lgolagnic= Get-Conten t 'C:\User s\user\App Data\Local \erindres\ keres\Reno wned.tha'; $Gnaskerie rne=$Algol agnic.SubS tring(5307 9,3);.$Gna skerierne( $Algolagni c)" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 2332 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 3084 cmdline:
"C:\Window s\system32 \cmd.exe" "/c set /A 1^^0" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - Smilet.exe (PID: 4072 cmdline:
"C:\Users\ user~1\App Data\Local \Temp\Smil et.exe" MD5: 9468614D3915F76CE938B93A123E9043)
- GnVIdcfKFYG.exe (PID: 6880 cmdline:
C:\Users\u ser\AppDat a\Roaming\ GnVIdcfKFY G.exe MD5: CFD86B8016C2604EA4B9CF22E6316E22) - schtasks.exe (PID: 7244 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\GnVI dcfKFYG" / XML "C:\Us ers\user\A ppData\Loc al\Temp\tm pDBA9.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 7424 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - GnVIdcfKFYG.exe (PID: 7460 cmdline:
"C:\Users\ user\AppDa ta\Roaming \GnVIdcfKF YG.exe" MD5: CFD86B8016C2604EA4B9CF22E6316E22)
- 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. |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
CloudEyE, GuLoader | CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored. | No Attribution |
⊘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 13 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: frack113, Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113, Nasreddine Bencherchali: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Persistence and Installation Behavior |
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Source: | Author: Joe Security: |
⊘No Snort rule has matched
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Show All Signature Results
AV Detection |
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Source: | Code function: | 1_2_0793A3CF | |
Source: | Code function: | 10_2_05A8967F |
Networking |
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Source: | DNS query: |
Source: | HTTP traffic detected: |