MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a
SHA3-384 hash: 9a639cadb351aae8f630bba909f371d25785e502380fc6794a90ab2ade7ad02051d28fa2f47b773aae7878c30fa5f352
SHA1 hash: 56efc00735703d27d8a63fdc6290b28569b57e41
MD5 hash: f80df973f1cfe455887dead1eeb25fbf
humanhash: mirror-charlie-stairway-neptune
File name:RFQ.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:674'699 bytes
First seen:2025-08-28 10:32:33 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:RwYeIlh2lOGbd5Wbogep5XNmmQqTGvy08laDtwnMIIEasoACNwWx5tLbK:RSlzbd5lJXNu4Gvy+ScdpbK
TLSH T1CDE423FACF7AF9A7E6F2406877D01F1D6409A96DE2443DAD2BD027A5388DC24064E34C
Magika zip
Reporter cocaman
Tags:FormBook RFQ zip


Avatar
cocaman
Malicious email (T1566.001)
From: "sales30 <sales30@chantawood.com>" (likely spoofed)
Received: "from chantawood.com (unknown [192.3.3.158]) "
Date: "28 Aug 2025 02:04:42 +0200"
Subject: "RFQ_2508-0263"
Attachment: "RFQ.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
CH CH
File Archive Information

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

File name:RFQ.exe
File size:717'824 bytes
SHA256 hash: 4824c73de2a144d3e4fbca50cb9fe2a81dda794258c6c9de45caf3572d17e145
MD5 hash: 2bfa6a18586e533e579db4c1b78ef3c1
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs1280.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Variant.Genie.8DN.192.8487.5623.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aff6293e988eb6ab82dfe5
Tags:
n/a
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego vbc vbnet zero
Link:
https://www.filescan.io/uploads/68b0304c39a6221faa72c6bb/reports/9d0da9aa-e509-435e-bf6f-797cd486420d/overview
Verdict:
Malicious
Labled as:
Trojan.U.FormBook
Link:
https://www.hybrid-analysis.com/sample/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a
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
Detections:
Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb VHO:Trojan-PSW.Win32.ReaderDB.gen HEUR:Trojan-PSW.MSIL.DarkCloud.gen HEUR:Trojan.MSIL.Injector.gen Trojan-Spy.Win32.Noon.sb
Link:
https://opentip.kaspersky.com/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.34 Zip Archive
Link:
https://app.malva.re/file/f80df973f1cfe455887dead1eeb25fbf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-08-27 09:21:52 UTC
File Type:
Binary (Archive)
Extracted files:
8
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=poep7qao5fm74fuvrogzlcfzarea4zu5zkttuopgm5urrlzlyyva._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250828-mrdp9aem3s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
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:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a

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: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)
Rule name:win32_dotnet_form_obfuscate
Create hunting rule
Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware

File information

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

Malspam

Formbook

zip 7b88ffc00ee959fe16958b8d9588b904480e669dcaa73a39e6676918af2bc62a

(this sample)

Formbook

Executable exe 4824c73de2a144d3e4fbca50cb9fe2a81dda794258c6c9de45caf3572d17e145

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 4824c73de2a144d3e4fbca50cb9fe2a81dda794258c6c9de45caf3572d17e145
  
Dropping
Formbook
  
Dropping
MD5 2bfa6a18586e533e579db4c1b78ef3c1

Comments