MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe. 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: 8


Intelligence 8 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe
SHA3-384 hash: 013b90265e3622f08f183b7f7342ece0e39f70857d017c601a400aad0c2ef6621d45212cdbc109db6030deea97d228d4
SHA1 hash: cd8128ed70ace61f57a7948a0b1b2ca9ce7d75b3
MD5 hash: 8444eaf075e81e52fcd17e4424849912
humanhash: hawaii-don-arkansas-don
File name:RFQ.7z
Download: download sample
Signature Formbook
Create hunting rule
File size:579'613 bytes
First seen:2025-06-13 12:12:17 UTC
Last seen:Never
File type: 7z
MIME type:application/x-7z-compressed
ssdeep 12288:Yi2PzMt+Nm6doF1LJ0Zn8QoINqu+gzIsbpRwErrH:YiO436oiPESI4pRwiH
TLSH T178C4237C1610423C9CBB38D56B2F68E2D3110155329F92A5FB3C7D0BDA2936BAE1199F
TrID 57.1% (.7Z) 7-Zip compressed archive (v0.4) (8000/1)
42.8% (.7Z) 7-Zip compressed archive (gen) (6000/1)
Magika sevenzip
Reporter cocaman
Tags:7z FormBook RFQ


Avatar
cocaman
Malicious email (T1566.001)
From: "sales@re-petroleum.com" (likely spoofed)
Received: "from unassigned.quadranet.com (unknown [198.55.98.192]) "
Date: "11 Jun 2025 03:31:49 -0700"
Subject: "Re: RFQ"
Attachment: "RFQ.7z"

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
CH CH
File Archive Information

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

File name:wxb5wh8EUFkAGyz.exe
File size:659'976 bytes
SHA256 hash: 2382293ae93ccb52b8f2085e938dd5748cbcc615bbb93b692e84ca10614b97eb
MD5 hash: 489e92c73ea4a44deae2f5af5cf4339e
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.57.10749.6305.UNOFFICIAL
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Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684c15b38bd5d68a12e87709
Tags:
shellcode spawn shell
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe/results/dashboard
Gathering data
Verdict:
Suspicious
Labled as:
Trojan.U.FormBook
Link:
https://www.hybrid-analysis.com/sample/28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe
Score:
99%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe/
Threat name:
Win32.Trojan.MassLogger
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Status:
Malicious
First seen:
2025-06-11 11:02:57 UTC
File Type:
Binary (Archive)
Extracted files:
9
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fd3yb2mgu4x6gigcjttgizme7eivnksqtzjruy76lj7ujel77o7a._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:hi26 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250613-phyp6syvfx/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
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:
0.00
Link:
https://yomi.yoroi.company/submissions/28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe

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: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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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
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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

7z 28f780e986a72fe320c24ce6646584f91156aa509e531a63fe5a7f44917ffbbe

(this sample)

Formbook

Executable exe 2382293ae93ccb52b8f2085e938dd5748cbcc615bbb93b692e84ca10614b97eb

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 2382293ae93ccb52b8f2085e938dd5748cbcc615bbb93b692e84ca10614b97eb
  
Dropping
Formbook
  
Dropping
MD5 489e92c73ea4a44deae2f5af5cf4339e

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