MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 129156f77f3dca373d74c668a7e4250e0812fb36bdb926aeb2ef0dec4c122846. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash: 129156f77f3dca373d74c668a7e4250e0812fb36bdb926aeb2ef0dec4c122846
SHA3-384 hash: c581de1c07fb7b84c96547eac7bcaf030766053051c580949e4ed71112c0526f4171e775ecc48994ec745a4d25817230
SHA1 hash: 2fc368b855365a62107294a4842b45273be19b58
MD5 hash: d7acbf95f4a66ed84df86a0cba4fcec9
humanhash: nitrogen-mobile-hawaii-mirror
File name:SecuriteInfo.com.BackDoor.SpyBotNET.62.3823.11325
Download: download sample
Signature Formbook
File size:373'248 bytes
First seen:2023-11-21 07:29:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:5Dmad57XeLl33j30xGRh08SgmmwfhYaStizah1U9csh/mGKwgR:5K0GRIgrwSPipBvgR
TLSH T1B284D044FE9A8B16F47547FA7A7671068BF3157A2362C1191E9A70D3D020F432E82F97
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 72ceaeaeb2968eaa (57 x AgentTesla, 9 x Formbook, 7 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
326
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
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
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-21 07:08:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:o11y rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
cf3cb1ed1ab91dd1aca86208468b26e891f535f75ebff7e83184cc306fc931d4
MD5 hash:
2adaed22e634cca06d543f6526b7dbca
SHA1 hash:
be0ad51699017d10ef6006b3d4a1f42c59fc2b07
SH256 hash:
2225ed7000fcea1210bc64b5735079ecab1f21f35cccf831a24d06c610a6b6fd
MD5 hash:
4bddd8689d508935264f5aca86d7e373
SHA1 hash:
1b25d8a76dba2facae2b5dfeedcc890369b02e76
SH256 hash:
129156f77f3dca373d74c668a7e4250e0812fb36bdb926aeb2ef0dec4c122846
MD5 hash:
d7acbf95f4a66ed84df86a0cba4fcec9
SHA1 hash:
2fc368b855365a62107294a4842b45273be19b58
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: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.

Comments