MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778. 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: 9


Intelligence 9 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778
SHA3-384 hash: e347e66cd039f5f6cb1005d29fa6c1781d383c9f2b7e45a6206b34ef8ad37b6a5b2538e0f9d4280d419757fed94e411f
SHA1 hash: 26725f015f961dd0bfac8b6aec499a29e48440c6
MD5 hash: 93b1b22b7e0b06debccb704fbb6d4766
humanhash: nevada-georgia-music-oregon
File name:DOCUMENT 9348272025.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:767'337 bytes
First seen:2025-08-28 10:21:06 UTC
Last seen:2025-08-29 06:58:03 UTC
File type: zip
MIME type:application/zip
ssdeep 12288:Tx4ibAYR6ao44/ECgNlW/DrKgYFoeUlTrzW1WvO8HnKS7jDrarD:TKKjA/ECgLWRHlTfW1W3nKSbran
TLSH T1C8F4235C45EE8A4FBA846C8E37C648611412F691B8352660D784F4E8393AFF8D2D1B7F
Magika zip
Reporter cocaman
Tags:FormBook zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Claudia Zimmer <vize-praesidentin@lsv-fra.de>" (likely spoofed)
Received: "from lsv-fra.de (herrbruck.org [89.110.146.40]) "
Date: "Thu, 28 Aug 2025 11:33:05 +0100"
Subject: "LPS-102ENR - AUG 28 2025"
Attachment: "DOCUMENT 9348272025.zip"

Intelligence

File Origin
# of uploads :
5
# of downloads :
68
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:DOCUMENT 9348272025.exe
File size:1'220'608 bytes
SHA256 hash: 5e890ef07e56cfc57a9468b04703a19455b181addb219eb5ed6d2e064b9ca8e9
MD5 hash: b15cc5e30aa5d5994a6faa60c884b1f5
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Clean
Score:
89.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b02da4eb163e0ec182f833
Tags:
n/a
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit cmd compiled-script evasive fingerprint keylogger lolbin microsoft_visual_cc packed threat
Link:
https://www.filescan.io/uploads/68b02db88d7e238761843023/reports/6c4a0bc1-5372-4820-8547-43b5a8ba6f6c/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
File Type:
zip
Link:
https://opentip.kaspersky.com/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778/
Threat name:
Script-AutoIt.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-28 10:21:09 UTC
File Type:
Binary (Archive)
Extracted files:
29
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kf33qef3yle2idrfo5hxoakwmaueaktklzz2yp3dmijtbhzvk54a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250828-mrdp9azxbv/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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)
Rule name:Windows_Generic_Threat_aeaeb5cf
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip 5177b810bbc2c9a40e25774f7701566028402a6a5e73ac3f636213309f355778

(this sample)

Formbook

Executable exe 5e890ef07e56cfc57a9468b04703a19455b181addb219eb5ed6d2e064b9ca8e9

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 5e890ef07e56cfc57a9468b04703a19455b181addb219eb5ed6d2e064b9ca8e9
  
Dropping
Formbook
  
Dropping
MD5 b15cc5e30aa5d5994a6faa60c884b1f5

Comments