MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a75fa828c957b6b8a85cc40bf4a0a64fb6afef7ef1fe31dc0e842baf399031be. 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 5 File information Comments

SHA256 hash: a75fa828c957b6b8a85cc40bf4a0a64fb6afef7ef1fe31dc0e842baf399031be
SHA3-384 hash: b6050feb393e93be3a010e4a2e68d5ab6a7ddc204c3d25e4cd85428e02c82997ee5bcee1c3581faf3c1cbb70e70b9999
SHA1 hash: 7f6993203b0bb9d811e13ce6a2c579f44a773679
MD5 hash: d2e415df137c2175a0f59ef9397ecbb7
humanhash: uranus-massachusetts-jig-cola
File name:file
Download: download sample
Signature Formbook
File size:57'152 bytes
First seen:2022-10-27 23:18:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:4M7QbIY4QcSsF+tYvQeCmofCvlUoeOoWixPd:4MwvcSd1F6lehWA
Threatray 1'549 similar samples on MalwareBazaar
TLSH T178437D897BD87D8FC54BDB7A89A17C094A78E0713707C393B891766C091A3CE5D13A93
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30b2c4c8c8c4b030 (53 x Formbook, 41 x RemcosRAT, 20 x AgentTesla)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
288
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-10-28 00:49:02 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
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the system32 subdirectories
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
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
Behaviour
Behavior Graph:
n/a
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-10-28 00:12:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
13 of 26 (50.00%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:zx85 rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
28a704919ecba6daad7f1bf159c6327677b772eab58cddf6988e479298a885b5
MD5 hash:
a3f26f004af086525af2c68f688374fc
SHA1 hash:
5a21a4c134c659dc70208730c750c829d52737cb
SH256 hash:
a75fa828c957b6b8a85cc40bf4a0a64fb6afef7ef1fe31dc0e842baf399031be
MD5 hash:
d2e415df137c2175a0f59ef9397ecbb7
SHA1 hash:
7f6993203b0bb9d811e13ce6a2c579f44a773679
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:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
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 a75fa828c957b6b8a85cc40bf4a0a64fb6afef7ef1fe31dc0e842baf399031be

(this sample)

  
Delivery method
Distributed via web download

Comments