MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be4f36ad29a948638afbfb9434ace62dc1d9cd3fcfee3aff3d5da5fe687b6e31. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments

SHA256 hash: be4f36ad29a948638afbfb9434ace62dc1d9cd3fcfee3aff3d5da5fe687b6e31
SHA3-384 hash: 4cd71ed6a123b28a0cb4070acd2d875de9504bbbbeae1a940f8ddf75c8be936849251275ee8b5d8b58b6f136761a76a4
SHA1 hash: 8297e28f07a44ac7ea675ee3410776483fa0469e
MD5 hash: 344ba820334ebda5eec8c7a701b3cfed
humanhash: september-fourteen-autumn-lemon
File name:344ba820334ebda5eec8c7a701b3cfed.exe
Download: download sample
Signature Formbook
File size:5'393'920 bytes
First seen:2023-04-05 13:15:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 49152:Be62YWtmy49HANqG2Ae4AJywA6QZYy9kr9Tr+F3EDUyTrMCr:8iWt8AMBlB
Threatray 3'354 similar samples on MalwareBazaar
TLSH T16D462801BFE4491BE6F71BB8742512C8D9B4E56A76D3A706300FB4690F293492EDF362
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon eaeaeaee5e4ecece (2 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
228
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PSC_ A-2303310.xls
Verdict:
Malicious activity
Analysis date:
2023-04-04 15:32:11 UTC
Tags:
opendir exploit cve-2017-11882 loader formbook xloader trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 841989 Sample: nnOQNuWV5P.exe Startdate: 05/04/2023 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 6 other signatures 2->47 10 nnOQNuWV5P.exe 15 7 2->10         started        process3 dnsIp4 39 192.227.183.170, 49692, 80 AS-COLOCROSSINGUS United States 10->39 33 C:\Users\user\AppData\...\Prrxkosherq.exe, PE32 10->33 dropped 35 C:\Users\user\AppData\...\nnOQNuWV5P.exe.log, ASCII 10->35 dropped 57 Creates an undocumented autostart registry key 10->57 59 Encrypted powershell cmdline option found 10->59 61 Writes to foreign memory regions 10->61 63 2 other signatures 10->63 15 MSBuild.exe 10->15         started        18 powershell.exe 16 10->18         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 20 explorer.exe 1 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 37 www.learningpaths.site 185.134.245.113, 49700, 80 DOMENESHOPOsloNorwayNO Norway 20->37 49 System process connects to network (likely due to code injection or exploit) 20->49 26 svchost.exe 20->26         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 26->51 53 Maps a DLL or memory area into another process 26->53 55 Tries to detect virtualization through RDTSC time measurements 26->55 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:my28 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
be4f36ad29a948638afbfb9434ace62dc1d9cd3fcfee3aff3d5da5fe687b6e31
MD5 hash:
344ba820334ebda5eec8c7a701b3cfed
SHA1 hash:
8297e28f07a44ac7ea675ee3410776483fa0469e
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Suspicious_Macro_Presence
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.

File information


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

Web download

Formbook

Executable exe be4f36ad29a948638afbfb9434ace62dc1d9cd3fcfee3aff3d5da5fe687b6e31

(this sample)

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