MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf
SHA3-384 hash: f56e5e322b2072cf4501f6838b1bd8e2d7aeed75ec924f99ba44bb298269e75bcf651fa08eebbd438a12386503e8c44d
SHA1 hash: cd4ce253309b581ac346c2f86f996f3255105752
MD5 hash: 5a963a6095d8e80f626cce1d63a6a78f
humanhash: berlin-four-hamper-diet
File name:8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf
Download: download sample
Signature Formbook
Create hunting rule
File size:745'984 bytes
First seen:2025-09-05 12:33:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:HSLOwUN5Jdip3i+eY5a5fLn/r8CPbYEi7TIrWM1w97UGAzruTmBbon2Bugw:HSBKjSwY5aN/r8CPNoTwd+Czr5BzBrw
TLSH T12EF41201266AEB03C5E21BF45DB2D3B843F95E99B812E7268EF57DDB3831B042984593
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.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 :
56
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO 75654RTUY.7z
Verdict:
Malicious activity
Analysis date:
2025-08-14 10:22:32 UTC
Tags:
netreactor formbook xloader stealer
Link:
https://app.any.run/tasks/d8a47894-8377-45ae-a63f-800aa1e91fca

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/25342/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bad8bdeb163e0ec18479a3
Tags:
virus shell micro
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
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68badd3020d0ee406d96a497/reports/57ea835b-2ac8-4b3b-8563-8af8214e65cf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-14T04:58:00Z UTC
Last seen:
2025-08-14T04:58:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/08b2f72c-5cbc-4a91-ae0e-e72b56e606aa
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.47 Win 32 Exe x86
Link:
https://app.malva.re/file/5a963a6095d8e80f626cce1d63a6a78f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-14 11:18:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qkb66yiehtlhkqtbnkottkm4sts6anlda6g4orwtf57hdhc3zdhq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250905-p3672swqz6/
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
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8b8b4f76-6f04-4797-bef5-fd170befaa0f
Unpacked files
SH256 hash:
8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf
MD5 hash:
5a963a6095d8e80f626cce1d63a6a78f
SHA1 hash:
cd4ce253309b581ac346c2f86f996f3255105752
Link:
https://www.unpac.me/results/93772006-debf-49dd-87c9-19f9239f0132/
SH256 hash:
189b4c51ddbec272eb85bfa39bb8150320be706342bef5af9d13d4152af85d92
MD5 hash:
48fbb63ee52d57312589a409fe4379ec
SHA1 hash:
11bf045c54dc6d198ad69d0844ea5c8e3df76a6f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/93772006-debf-49dd-87c9-19f9239f0132/
SH256 hash:
45e6d9f786c2286fd40748578551149b5aec2f0cc09191b6b94988daef9289b4
MD5 hash:
61440746ed7b978d75e70598aac30f10
SHA1 hash:
6dfc1e5be22c249bb006bb6b5fc86c210249ec03
Link:
https://www.unpac.me/results/93772006-debf-49dd-87c9-19f9239f0132/
SH256 hash:
460cf4c4d4cfe4b310e0c81d240e1bf2311b5476c4c91748a8d4d0e8ebcc59e4
MD5 hash:
19f12013706b3a92e6ae1046d91b6106
SHA1 hash:
949d1e523c477aa657705bace7391ba4df66a077
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/93772006-debf-49dd-87c9-19f9239f0132/
Parent samples :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 hash:
029a46a513fd0039f88d0f7128d470fc45e1e66955f4c1a4ba7132433c7b5ef7
MD5 hash:
9555b43bef5bda0d9d0cb0c638272139
SHA1 hash:
ba392a5c98683beca0667c880feabbfd02d7eab0
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/93772006-debf-49dd-87c9-19f9239f0132/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8283ef61043c/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/8283ef61043cd67542616a9d39a99c94e5e03563078dc746d32f7e719c5bc8cf

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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/25342/

Comments