MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31b57c8bdc8e2a57aab3585b53904eb130fe155c96f095951eccec5a02a6451d. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1

SHA256 hash: 31b57c8bdc8e2a57aab3585b53904eb130fe155c96f095951eccec5a02a6451d
SHA3-384 hash: 7e582c1ad127a8a773a73682065a27504b1d6c8b6aef9d3ed5cf84918186971169ae95b418a361e0c0f42d6d87211fe8
SHA1 hash: efdcb73b5059dabf2f295e347d3cb936b5e467db
MD5 hash: 6597abe19d7fb19e1812b00cfa40efcd
humanhash: helium-chicken-triple-neptune
File name:6597abe19d7fb19e1812b00cfa40efcd
Download: download sample
Signature Formbook
File size:154'112 bytes
First seen:2022-05-09 15:37:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:0ybcBwxx7EUcNB/17VbqgPP0coCFDGVHov1YavbDIybDExqDwwL4MxtX+X8GbffK:0ybo0BYv2g30rwD2H7BX0
TLSH T152E3519DEB85B314E8581B3124B9461C9A1EEE2CE4BC650E3D5D35FB6FB320019D63E8
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e4b25b12b425b2d8 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6597abe19d7fb19e1812b00cfa40efcd
Verdict:
Malicious activity
Analysis date:
2022-05-09 16:33:05 UTC
Tags:
n/a

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

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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:
Unknown
Detection:
suspicious
Classification:
evad
Score:
24 / 100
Signature
.NET source code contains potential unpacker
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-05-09 15:15:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
14 of 26 (53.85%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Behaviour
Delays execution with timeout.exe
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
Blocklisted process makes network request
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
31b57c8bdc8e2a57aab3585b53904eb130fe155c96f095951eccec5a02a6451d
MD5 hash:
6597abe19d7fb19e1812b00cfa40efcd
SHA1 hash:
efdcb73b5059dabf2f295e347d3cb936b5e467db
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.

Web download

Formbook

Executable exe 31b57c8bdc8e2a57aab3585b53904eb130fe155c96f095951eccec5a02a6451d

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-05-09 15:37:17 UTC

url : hxxp://107.175.218.12/j/gdy.exe