MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8762ea652c974bb0aa9bdf338ed57d46c251f72f5f1f4a5bf4d40c9961d8e2ee. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 18


Intelligence 18 IOCs YARA 6 File information Comments

SHA256 hash: 8762ea652c974bb0aa9bdf338ed57d46c251f72f5f1f4a5bf4d40c9961d8e2ee
SHA3-384 hash: 48ce234582f17ac5edef6fede0c70af4ab077d07ccbaea35c27cd32c72506cd41882990ada9da0b0c7846a7b12c1018b
SHA1 hash: 6b92b743ddf5e0a38a38ecedbc71d5d66dd1a24c
MD5 hash: 3577b6781c96341d85c2d789663996f1
humanhash: colorado-rugby-bravo-ack
File name:WRONG BANK DETAILS.exe
Download: download sample
Signature Formbook
File size:590'336 bytes
First seen:2024-09-22 14:01:32 UTC
Last seen:2024-12-05 15:47:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:R/nqjqYBWEjmDVEEBFGpfAvAUcpghwG2n2HtgmmeEnHSUh:R/pUWEYBQp4vAUcGCFn2HteeER
Threatray 4'506 similar samples on MalwareBazaar
TLSH T102C4232D37689B17D938ABF990725B2443B675273E92C3591ED930DA0A37FC0C602757
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 86a6fa6eea82dc18 (4 x Formbook, 3 x AgentTesla, 1 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
366
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
WRONG BANK DETAILS.exe
Verdict:
Malicious activity
Analysis date:
2024-09-22 14:11:04 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Execution Stealth Msil Monitor Msil
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin packed shell32 vbnet
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1515360 Sample: WRONG BANK DETAILS.exe Startdate: 22/09/2024 Architecture: WINDOWS Score: 100 33 www.urjav.xyz 2->33 35 www.uwevei8.pro 2->35 37 9 other IPs or domains 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 47 14 other signatures 2->47 11 WRONG BANK DETAILS.exe 4 2->11         started        signatures3 45 Performs DNS queries to domains with low reputation 33->45 process4 file5 31 C:\Users\user\...\WRONG BANK DETAILS.exe.log, ASCII 11->31 dropped 55 Adds a directory exclusion to Windows Defender 11->55 57 Injects a PE file into a foreign processes 11->57 15 WRONG BANK DETAILS.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 67 2 other signatures 15->67 20 explorer.exe 105 1 15->20 injected 65 Loading BitLocker PowerShell Module 18->65 22 conhost.exe 18->22         started        process9 process10 24 msiexec.exe 20->24         started        signatures11 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51 53 Switches to a custom stack to bypass stack traces 24->53 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2024-09-20 11:43:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:t94g discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Unpacked files
SH256 hash:
827542f37c1fe13cf0c55e03448884eb382c899f241f0f7b22c9aa686c42c7d1
MD5 hash:
b31cf7231cd150aed72f9919787a6418
SHA1 hash:
abe3c237bfbb1047b2f416fad9a7eaba7d291e30
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
8762ea652c974bb0aa9bdf338ed57d46c251f72f5f1f4a5bf4d40c9961d8e2ee
MD5 hash:
3577b6781c96341d85c2d789663996f1
SHA1 hash:
6b92b743ddf5e0a38a38ecedbc71d5d66dd1a24c
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments