MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c
SHA3-384 hash: 985f1741c835372ca19aa693dc865674172d539417aaedc735b20f6f830baecd1d5733d05add14cf8f2bd8ad7f865710
SHA1 hash: c202693ef1785c126828dc417026be220544359f
MD5 hash: ce382be6a95b693c198c7ac8984450a7
humanhash: quebec-four-pizza-alabama
File name:f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c
Download: download sample
Signature Formbook
Create hunting rule
File size:1'092'096 bytes
First seen:2026-08-10 14:06:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'190 x AgentTesla, 20'337 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:fXR6pFGQ4cSSd4b9Hc9fFdf/y2/OwV93HveZ7Grpa0:fBi4/m4B89f3f/y2/OcvUspa0
TLSH T190351249371FED02C8E25FB11D70D3B405B95E94A410E3139AFBBDE7B96F29A6C09181
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
51
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/5f2c403a-8d71-46f0-8afe-7e26a001a3d7/
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79718/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6a79db96c28463a7097ad623/reports/f6b5d095-85ce-4363-a8c7-c65d1f086bdd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-09T03:48:00Z UTC
Last seen:
2026-08-07T06:13:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/27ba4e12-e3b9-443c-82b2-33766cbac6c6
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-07-09 07:43:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-rfg1razgmb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
f4394f984d6461e7c352cfcf328ddbb97d92d4f6388ed318b2f49c781959cf2c
MD5 hash:
ce382be6a95b693c198c7ac8984450a7
SHA1 hash:
c202693ef1785c126828dc417026be220544359f
Link:
https://www.unpac.me/results/b168a8ac-0f23-4ef8-b27e-db0d1aa7b33c/
SH256 hash:
a95430ecd8f20033345e6b3de8246ba0657ce483364e2db340c791546e62207d
MD5 hash:
0fdb24395b0bb72db82e42b593b9c4bb
SHA1 hash:
0757e0269d40da10207c278dbfc6296a493b1459
Link:
https://www.unpac.me/results/b168a8ac-0f23-4ef8-b27e-db0d1aa7b33c/
SH256 hash:
b1de5d186200303fab90c078474031f3cf61b36cbc69868976b35af4c8b101ec
MD5 hash:
3c846e5f9ebdac3d470ed26562ad6579
SHA1 hash:
61758ebc49b0d5154bc7a06e02384500b8a761c9
Link:
https://www.unpac.me/results/b168a8ac-0f23-4ef8-b27e-db0d1aa7b33c/
SH256 hash:
2e3b417f85274b3535ed4f9b6addd6c16c5148e047552518013f3099d4258624
MD5 hash:
af017d5427ca771f0cc8498e96983681
SHA1 hash:
44d92a33fe2818c181304df0999dc814b75738f4
Link:
https://www.unpac.me/results/b168a8ac-0f23-4ef8-b27e-db0d1aa7b33c/
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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/79718/

Comments