MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 356bb90d01b865c7c559e2d7494013918d41169a742c0ee39084fcfd1f9c273b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 356bb90d01b865c7c559e2d7494013918d41169a742c0ee39084fcfd1f9c273b
SHA3-384 hash: 4066e2c0a7c54044f7adba09c601ef1a8fc7ce38b7e2dac272bb449a96c91c8a8ec9b4971ac85b5a037c683d73a250b8
SHA1 hash: 3a76bc08975da0f8bd16e8eb493e5e76e2af1c9e
MD5 hash: 11e5919e2e2247f894febff407ed5d05
humanhash: washington-carpet-william-mike
File name:PO_3912.exe
Download: download sample
Signature Formbook
File size:746'496 bytes
First seen:2022-09-01 17:54:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:WwtL6nOIgBVPMdVKRCy2tV04Q9RMd6uB8rVfrKiFMbTCx0crh4K34DUBEHslgDaa:XcRrzKAy2K9I2lfkY04f4DaC
TLSH T15EF4D08462381F6AEDBD47F96022D82187F63C2BB5ADE3594DC238DB3977F01061196B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.3% (.SCR) Windows screen saver (13101/52/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
415
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO_3912.exe
Verdict:
Malicious activity
Analysis date:
2022-09-01 17:55:46 UTC
Tags:
formbook trojan stealer

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

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook 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
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-19 04:33:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dn07 rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
a0ee965784ef486f590b37acec04e727d8d355a4399367786c9928ae8f4d494a
MD5 hash:
76bfd968d8b77916e962feb67da5daa1
SHA1 hash:
5a3894f879a6bf432e0916986bd33b0b77234f5a
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
551ef0181260a5ab5728a618c2e86443753aaeb425e6c3b1346dfb0a661c73af
MD5 hash:
3c7205139e6aabd7de040b15021c24ed
SHA1 hash:
e4c66e4ca1bb3b5488d7c4ba7fddc8cac118955f
SH256 hash:
f03db755a315aac0e9e476a19673e593e9f6bbb535706d03780f4bbab38d3715
MD5 hash:
43840cc2b4f146358dab0891ab485415
SHA1 hash:
dccccc75229df35ea5007968d050b639290c77c7
SH256 hash:
235f6d73e9e8a71c0a465909f587f23c0503a6df2cf2697a6db380e759f5148c
MD5 hash:
294f42805aa83cb2cca00bb8f493ce35
SHA1 hash:
d6651030ba8cf62e48bd3e2c4c92af58bf248901
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
356bb90d01b865c7c559e2d7494013918d41169a742c0ee39084fcfd1f9c273b
MD5 hash:
11e5919e2e2247f894febff407ed5d05
SHA1 hash:
3a76bc08975da0f8bd16e8eb493e5e76e2af1c9e
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: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.

Malspam

Formbook

Executable exe 356bb90d01b865c7c559e2d7494013918d41169a742c0ee39084fcfd1f9c273b

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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