🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9
SHA3-384 hash: cd0e8c34c37cee4e34bb1a874e5ddd6417aac59ad9b9ce332b1ffe08cd220ab6d59ecde4b2f5e776dab3596679194611
SHA1 hash: 883f52300a465ae5ad3d4fc5439f5fed51668bd3
MD5 hash: 52a74707667a353b531ec8583c86eba0
humanhash: crazy-autumn-north-thirteen
File name:4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9
Download: download sample
Signature Formbook
Create hunting rule
File size:1'257'472 bytes
First seen:2026-09-04 20:36:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'218 x AgentTesla, 20'418 x Formbook, 12'370 x SnakeKeylogger)
ssdeep 24576:FrbdIRXf99cIZfQG2dJyzd+HLf6nYTVbup53R:pb+fcIZh2umLZxbG3
TLSH T1C945D09832C0F8CEC4038E718D64FD74A6502CA69306CE039DE76DEBB91D5969E351EE
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon e4ccccccd4c4cccc (12 x Formbook, 10 x AgentTesla, 5 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
153
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
ConfuserEx RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/62068b0c-2136-4cb6-a2db-6bb0ded46952/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-04 22:55:04 UTC
Tags:
netreactor formbook xloader
Link:
https://app.any.run/tasks/196a9e32-6516-4188-95e5-9ce8306a5ec0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/84097/
Detection(s):
Win.Dropper.Remcos-9974553-0
Create hunting rule

Win.Trojan.Gamarue-9974991-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden 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)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/6a9b2bff1d9c63a90788ef5b/reports/f3645484-e56b-4bf7-b4d2-5df72b8079c0/overview
Verdict:
Malicious
Labled as:
FormBook.Generic
Link:
https://www.hybrid-analysis.com/sample/4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-12T05:33:00Z UTC
Last seen:
2026-09-04T10:09:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/93353138-5d49-4af0-ba80-e3337854973c
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-08-13 03:15:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnpnfw2njrehqltje3mfnhzrj5vkg3mnn3dradvpd5lbxv3cn74q._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/29fad77b-fbcd-4003-bcc9-f45161ffb99d
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260904-zedkyazfke/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9
MD5 hash:
52a74707667a353b531ec8583c86eba0
SHA1 hash:
883f52300a465ae5ad3d4fc5439f5fed51668bd3
Link:
https://www.unpac.me/results/9529acc0-e872-49d0-ae10-6fb4c9f71c67/
SH256 hash:
76e498f6c3056812a6aa5dab98d61ce4f38fb688de62766a3d6b233f68a51f0b
MD5 hash:
68a9e112ca72295fa5caac73cc65232a
SHA1 hash:
36d946402d86bf9e2e06c58dca1afe57258e7b11
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/9529acc0-e872-49d0-ae10-6fb4c9f71c67/
Parent samples :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 hash:
0c79b050f291e12a4270ee10e19e1eed9c42d95eb13e8391c248629f0253bd30
MD5 hash:
42a59a858993c77f57d2ebe6ccc65f58
SHA1 hash:
8fe5917ca18867a3b2a2762c60e3a49fdfbf38fe
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/9529acc0-e872-49d0-ae10-6fb4c9f71c67/
SH256 hash:
4d6ebfa89ca07acada2dd48ed0c61257d2f8504d2995a5285367274556cfdfc8
MD5 hash:
14b80119dc48ed0e6abff6359bc4e80a
SHA1 hash:
1cb21757c201a9a1b158dc6489fa0576d8be8a02
Link:
https://www.unpac.me/results/9529acc0-e872-49d0-ae10-6fb4c9f71c67/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b5ed2db4d4c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b5ed2db4d4c48782e6926d8569f314f6aa36d8d6ec7100eaf1f561bd7626ff9

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
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

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/84097/

Comments