MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3
SHA3-384 hash: 6f1710c38f6e5114fabf4ae6bef425d932d8ee73d99c1d1a8020abbf2b3616428ea2b95cf4c1bf5ed614b76ae06b51da
SHA1 hash: ea15661d4a64249a946c55c21b135735dcc1040b
MD5 hash: 7c534367fe058876dc7c47f868801322
humanhash: stairway-hydrogen-william-jig
File name:SHIPPING DOC.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:585'501 bytes
First seen:2025-02-28 09:31:12 UTC
Last seen:2025-02-28 18:26:33 UTC
File type: rar
MIME type:application/x-rar
ssdeep 12288:2Sy6pPWZ+a6rweTUauBsMy9L95pkzCMJEaWjlKzpwqbiZr8yY0CM6kcfY:tWZ+aaweTUauBsMydSfIipwquGdqj
TLSH T1D2C42353E144A00723351AFFDE593C798F6D9DFC1979A99E3AAD2438BA04398123E433
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:FormBook rar Shipping


Avatar
cocaman
Malicious email (T1566.001)
From: ""Shirley.huang"<sales1.th@ti2shipping.com>" (likely spoofed)
Received: "from ti2shipping.com (unknown [45.144.212.136]) "
Date: "28 Feb 2025 18:24:52 -0800"
Subject: "RE: SHIPPING DOC (CI,COO,PL,BL) "
Attachment: "SHIPPING DOC.rar"

Intelligence

File Origin
# of uploads :
4
# of downloads :
130
Origin country :
CH CH
File Archive Information

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

File name:SHIPPING DOC.exe
File size:1'081'344 bytes
SHA256 hash: 61dca33592107d6dee726d1d3a960507e32b0845c9e4e8c07c81e07096b0b670
MD5 hash: 5ed230a016dd738e413233b94852ff87
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c16d464e50050b2e6ef727
Tags:
autorun autoit emotet
Verdict:
Malicious
Labled as:
Ransom.Wacatac
Link:
https://www.hybrid-analysis.com/sample/b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-02-28 09:31:14 UTC
File Type:
Binary (Archive)
Extracted files:
28
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wp3gcdodnrvt447fzkjlchx77ysmccaqnnjzfiwbsfbfdljmppjq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mg63 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250228-lrszhaym19/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Formbook family
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/b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
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_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_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
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

rar b3f6610dc36c6b3e73e5ca92b11efffe24c108106b5392a2c1914251ad2c7bd3

(this sample)

Formbook

Executable exe 61dca33592107d6dee726d1d3a960507e32b0845c9e4e8c07c81e07096b0b670

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 61dca33592107d6dee726d1d3a960507e32b0845c9e4e8c07c81e07096b0b670
  
Dropping
Formbook

Comments