MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506. 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: 16


Intelligence 16 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
SHA3-384 hash: 4993ada853bf424d077479e3a48254e2ee2db2cfcbaa84b94005f22033ec5558a2301c1938907ebd6527a0ea4b28b4c8
SHA1 hash: 06e7c581250aced9a1eafaded4e8805a7e207360
MD5 hash: 9c38368a6fa8eedd4a20f1974909e442
humanhash: hawaii-oven-saturn-iowa
File name:3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
Download: download sample
Signature Formbook
Create hunting rule
File size:773'128 bytes
First seen:2025-09-05 12:59:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:TFXBv/v6ijunlBFmlSJUXqk1YIphQOYaui1gobdSp+clVUJjsRhan2EzkR:TrPelB8Xq4zHJLhBq+cfUJi
Threatray 794 similar samples on MalwareBazaar
TLSH T197F4024413D6D501E1F62B3829B2D778977A7C9A6830C7068BE8BCEB3E72B105C507A7
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 :
63
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
Verdict:
Malicious activity
Analysis date:
2025-09-05 18:52:46 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/71fbdd12-2764-4e92-8fc8-e6aedc388193

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/25523/
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68badec2eb163e0ec1848079
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected remcos signed vbnet xworm
Link:
https://www.filescan.io/uploads/68bae90efe1969faa8a6c6f4/reports/af70328b-f43b-4668-9b96-3d61397a52e9/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-20T04:54:00Z UTC
Last seen:
2025-08-20T04:54:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/98bd1662-35da-4725-8367-7a4fa72d22e6
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.24 Win 32 Exe x86
Link:
https://app.malva.re/file/9c38368a6fa8eedd4a20f1974909e442
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506/
Threat name:
ByteCode-MSIL.Trojan.XWorm
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 13:02:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gq35zorxqnwon6ewiaaindmla4uolxfslwf7oqqyfc6rxjpgwuda._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
1f60712c0d173d50aba8f766c49d4c70588d3315b701756bbb785d7c513b1c78
Formbook
2e6ea2095b92809d61b9033fea61c32f672aedda1d736b6a38925ca19d27c16d
Formbook
2ff8705429d409122f0d0f34c7f50378f73e8eecfadcbf4c257439fc777e0a27
Formbook
3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb
Formbook
45c64c04137dbd68881ec07852bf10e7c491f504e1f78247b1217114cab47d3e
Formbook
46411b8001c1bec2f2ef0b8e4ebebf0457ecc0eec2b4693e3e61f1986009320e
Formbook
4da133b1ed7d9098b7b76b888472c069a08da9334cac292ea995c113d54812e3
Formbook
5ee3dca8cae3f74a8d15e487328d1a33c28ca7098c747f2d50e4e5547d038474
Formbook
62f63b180fc726bb6d54ecba4b3edb4436e2442953b07aea87c0e60cf057417f
Formbook
e716163f54adee3d2033774eb284550be239f8fa3027ce66724173f822a1131d
Formbook
error
Formbook
+ 784 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250905-q1btssaq7x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f78219db-a73e-4449-ad2c-59bff4997fec
Unpacked files
SH256 hash:
3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
MD5 hash:
9c38368a6fa8eedd4a20f1974909e442
SHA1 hash:
06e7c581250aced9a1eafaded4e8805a7e207360
Link:
https://www.unpac.me/results/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
SH256 hash:
7ad5f73cfaa94d981567140f61f512a753130f70d49f8e92731e3106b4f2b7b5
MD5 hash:
554dc2a07a4d75652b4c1a53a014fce8
SHA1 hash:
28d7c29590c5fa2309cada56572056b66fb94f39
Link:
https://www.unpac.me/results/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
SH256 hash:
79a5aaac2b0b3ed87c0b5e6ad0522823e813a266743a34a9cecc63e6c9d7ab14
MD5 hash:
2d35a6486c5c5acd42466f87ba0df509
SHA1 hash:
a188bec4d270043b705f0918c8e5d8b4daa94ed1
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
Parent samples :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 hash:
ad40e17f7261543ca5d68f32438f7c0b8456c68e76f7a8631a9e43d4f3b4ec5d
MD5 hash:
9fa16aba158727aab0c1b576410a8799
SHA1 hash:
aaacf94204aed056bf261706d773faa4833fd470
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/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
SH256 hash:
32fdaea2b32c13c2b928b175e336b04dc2273108103440c6e5706421b2eec8ab
MD5 hash:
f77a619c8604c73740e89babf4d37d0d
SHA1 hash:
0e590db88e667465ce3b993e61208985bead8786
Link:
https://www.unpac.me/results/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
SH256 hash:
2de0e8395770d87c2acce870e2c2a0be53516ffca2baf8d94c2ab437b16c5b1c
MD5 hash:
b7f461af876591716e0a45f6155f955c
SHA1 hash:
71ee44b8b434dde8443b3b0d12a0916b8ce3ce47
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5902cc0c-5ea2-45ec-b4eb-11ea2f3a253d/
Parent samples :
2b8d8c6e96c86f8b79186d479e8a1b6f70c01db3668bc526f8bd62a825a68f49
f0e55b1274addd245c00942b61bb7e9f590fe64b9c216cf85dc0da1d0bcee069
3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3437dcba3783/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/3437dcba37836ce6f8964000868d8b0728e5dcb25d8bf7421828bd1ba5e6b506

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/25523/

Comments