MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb. 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: 6


Intelligence 6 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb
SHA3-384 hash: 6f4b7e38a5dba3729e5f5a494f9a2eb86a4d3bfff41e16261e8e626084ce47a3d953a739981733cdcf6da140d5b9abaf
SHA1 hash: 3a6239f464fefa53e3155128cc48e312740b576c
MD5 hash: f522a519e7d28a8cd1222e9ae35665de
humanhash: king-alanine-bravo-sweet
File name:PLS. REVIEW ATTACHED INVOICE FOR URGENT PROCESS.GZ
Download: download sample
Signature Formbook
Create hunting rule
File size:1'109'079 bytes
First seen:2023-06-06 14:25:45 UTC
Last seen:Never
File type: gz
MIME type:application/x-rar
ssdeep 24576:QcLoH4dDpxKQ1yqCu+mpIEqgPUXylEH+xDGN5Sti7l3LTg:7LUsyvipIE1PUilEH+xDGHoadfg
TLSH T170353301983413524B56793819FB99E974E3F46A66AAF10C81D0388B0CF9BF7E6EF471
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook gz INVOICE


Avatar
cocaman
Malicious email (T1566.001)
From: "CENTROADNPERU CONSTRUCTION <contabilidad@centroadnperu.com>" (likely spoofed)
Received: "from centroadnperu.com (unknown [185.222.58.110]) "
Date: "30 May 2023 16:19:31 +0200"
Subject: "PLS. REVIEW ATTACHED INVOICE FOR URGENT PROCESS"
Attachment: "PLS. REVIEW ATTACHED INVOICE FOR URGENT PROCESS.GZ"

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
CH CH
File Archive Information

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

File name:PLS. REVIEW ATTACHED INVOICE FOR URGENT PROCESS.exe
File size:1'258'907 bytes
SHA256 hash: d434a9f3609e63a13feafd0bc3bf29abac38d194b72220d9e51054abdaf84826
MD5 hash: 9b10f33500b273f083cc081df043af49
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autoit cmd.exe evasive formbook greyware keylogger lolbin overlay packed setupapi.dll shdocvw.dll shell32.dll wscript wscript.exe
Link:
https://www.filescan.io/uploads/647f41fb3e72ee01eeb18166/reports/af56ce7a-e12d-40a8-b6e5-8c226c878f40/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb
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/e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-05-30 17:18:53 UTC
File Type:
Binary (Archive)
Extracted files:
100
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4p2uhnzgsbyvojwo76y3ax5s7gbe4vdjensmwz3k5xxd34fkel5q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230606-t6321sfb9z/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.25
Link:
https://yomi.yoroi.company/submissions/e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
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

gz e3f543b72690715726ceffb1b05fb2f9824e54692364cb676aedee3df0aa22fb

(this sample)

Formbook

Executable exe d434a9f3609e63a13feafd0bc3bf29abac38d194b72220d9e51054abdaf84826

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 d434a9f3609e63a13feafd0bc3bf29abac38d194b72220d9e51054abdaf84826
  
Dropping
Formbook

Comments