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Windows
Analysis Report
SecuriteInfo.com.Win32.PWSX-gen.11935.10916.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Detected FormBook malware
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Sigma detected: Steal Google chrome login data
System process connects to network (likely due to code injection or exploit)
Sigma detected: Scheduled temp file as task from temp location
Antivirus detection for URL or domain
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Sample uses process hollowing technique
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Machine Learning detection for sample
Performs DNS queries to domains with low reputation
Modifies the prolog of user mode functions (user mode inline hooks)
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Machine Learning detection for dropped file
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Adds a directory exclusion to Windows Defender
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
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)
Sample file is different than original file name gathered from version info
Drops PE files
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w10x64
- SecuriteInfo.com.Win32.PWSX-gen.11935.10916.exe (PID: 6908 cmdline:
C:\Users\u ser\Deskto p\Securite Info.com.W in32.PWSX- gen.11935. 10916.exe MD5: D72C3BB3172D13AC1CFC172C389E52E5) - powershell.exe (PID: 6968 cmdline:
C:\Windows \System32\ WindowsPow erShell\v1 .0\powersh ell.exe" A dd-MpPrefe rence -Exc lusionPath "C:\Users \user\Desk top\Securi teInfo.com .Win32.PWS X-gen.1193 5.10916.ex e MD5: DBA3E6449E97D4E3DF64527EF7012A10) - conhost.exe (PID: 6964 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) - powershell.exe (PID: 7004 cmdline:
C:\Windows \System32\ WindowsPow erShell\v1 .0\powersh ell.exe" A dd-MpPrefe rence -Exc lusionPath "C:\Users \user\AppD ata\Roamin g\hkkRsa.e xe MD5: DBA3E6449E97D4E3DF64527EF7012A10) - conhost.exe (PID: 492 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) - schtasks.exe (PID: 3096 cmdline:
C:\Windows \System32\ schtasks.e xe" /Creat e /TN "Upd ates\hkkRs a" /XML "C :\Users\us er\AppData \Local\Tem p\tmpE41B. tmp MD5: 15FF7D8324231381BAD48A052F85DF04) - conhost.exe (PID: 1648 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) - SecuriteInfo.com.Win32.PWSX-gen.11935.10916.exe (PID: 5416 cmdline:
C:\Users\u ser\Deskto p\Securite Info.com.W in32.PWSX- gen.11935. 10916.exe MD5: D72C3BB3172D13AC1CFC172C389E52E5)
- hkkRsa.exe (PID: 5396 cmdline:
C:\Users\u ser\AppDat a\Roaming\ hkkRsa.exe MD5: D72C3BB3172D13AC1CFC172C389E52E5) - schtasks.exe (PID: 3388 cmdline:
C:\Windows \System32\ schtasks.e xe" /Creat e /TN "Upd ates\hkkRs a" /XML "C :\Users\us er\AppData \Local\Tem p\tmp22F9. tmp MD5: 15FF7D8324231381BAD48A052F85DF04) - conhost.exe (PID: 60 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) - hkkRsa.exe (PID: 6664 cmdline:
C:\Users\u ser\AppDat a\Roaming\ hkkRsa.exe MD5: D72C3BB3172D13AC1CFC172C389E52E5) - explorer.exe (PID: 3324 cmdline:
C:\Windows \Explorer. EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D) - rundll32.exe (PID: 6192 cmdline:
C:\Windows \SysWOW64\ rundll32.e xe MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D) - cmd.exe (PID: 6452 cmdline:
/c copy "C :\Users\us er\AppData \Local\Goo gle\Chrome \User Data \Default\L ogin Data" "C:\Users \user\AppD ata\Local\ Temp\DB1" /V MD5: F3BDBE3BB6F734E357235F4D5898582D) - conhost.exe (PID: 6392 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
- 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. |
{"C2 list": ["www.mattewigs.com/co63/"], "decoy": ["detectiveadda.com", "codewm.com", "leeinvesting919.com", "dzaiwn.com", "winecountrywicked.com", "floraldesignsofhastings.com", "saleschildcarriers.com", "kanspersky.com", "mondlyfor.com", "takealicense.com", "aclarkemcgee.com", "riohandmadewithlove.com", "petalumadumpsterrental.com", "stanislavp.com", "mansakesalive.com", "ballthingsez.com", "iongraph.com", "pidesimple.com", "nutritioncalculate.com", "dulichphucbinh.com", "myccsmartmove.com", "infinitenegocios.com", "theatlantainvestoragent.com", "globussgroup.com", "v8ks.com", "salesshoulderpads.com", "freepad168.com", "zgs72.com", "48a47.com", "creativebrea.com", "inf9obase.com", "sehatorthocare.com", "vestostore.com", "girlspooppingtube.com", "tesoroimports.com", "pym479.com", "starlight-edugrp.com", "oleegmedia.com", "rachellebags.com", "f1-austin-tickets.com", "flinterview.com", "naspewt.xyz", "watordropfilter.com", "choppercitypowersports.com", "mazinhoccb.com", "sanantonionailsalon.com", "dlafluid.com", "localhomegurus.com", "shredthepowpow.com", "myboothtemplates.com", "comprec.net", "mespareparts.com", "zenhandsoaps.com", "blynnbundleswigs.com", "joineryxx.com", "cucinainvenice.com", "hzhomeimprovements.com", "kalmiamedia.com", "kuise-east-sakae.com", "mycomopolitantitle.com", "illusionscore.com", "attractyourlifestyle.com", "isicapp.com", "pestcontrolgloves.com"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 23 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 5 entries |
Persistence and Installation Behavior |
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Source: | Author: Joe Security: |
Stealing of Sensitive Information |
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Source: | Author: Joe Security: |
Timestamp: | 192.168.2.523.227.38.7449731802031412 07/20/23-11:46:57.367343 |
SID: | 2031412 |
Source Port: | 49731 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 10_2_00407B1A | |
Source: | Code function: | 10_2_00417331 |
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