MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400. 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 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400
SHA3-384 hash: 510508917c04881ac0d2268a4039dfa2bee672c355170d33a3710adf12c6a570c7f435dd790f0c9c6766bba594e1cba0
SHA1 hash: 8e05b50b273710781a0a0768c7b3416de576c68d
MD5 hash: 5820a843d8f5aad82d9a1ca4d7906f1d
humanhash: october-south-charlie-friend
File name:PBA 211100scan.r00
Download: download sample
Signature Formbook
Create hunting rule
File size:510'711 bytes
First seen:2025-01-02 18:16:03 UTC
Last seen:Never
File type: r00
MIME type:application/x-rar
ssdeep 12288:MUPVfPEAk0bBilcw/H9ZZA0DprCvfZr9QpSqX96NO0A+n:PXk0FilX1TA0drCvl9Q/oMvi
TLSH T109B423308FD78A58C7BB9B7B97AE2761540D859AEFD1C3EB71331099F402267B283161
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 payment r00


Avatar
cocaman
Malicious email (T1566.001)
From: "tanjila.tabbassum@transmarinelogistics.com" (likely spoofed)
Received: "from [154.203.197.208] (unknown [154.203.197.208]) "
Date: "22 Dec 2024 18:03:11 -0800"
Subject: "RE: Pending Bank Acceptance and pending payment (TML)"
Attachment: "PBA 211100scan.r00"

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
CH CH
File Archive Information

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

File name:aaaaaaaaaaaaaaaaaa.exe
File size:868'458 bytes
SHA256 hash: 17dc6ae2b8a4a5e958a09b19a771e102ec2ebbad438da6123705344eedcadf68
MD5 hash: d4dea766d9cd1fdb9545c08969811132
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6776d7e91ada707798255e19
Tags:
nymeria autoit emotet
Gathering data
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400
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/ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2024-12-23 00:36:41 UTC
File Type:
Binary (Archive)
Extracted files:
30
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vslgry6uwfisjxfaovglzndr6p7cd3d4q256pmae4fk46f24mqaa._file
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/ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400

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
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:AutoIT packer
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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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:golang_david_CSC846
Create hunting rule
Author:David
Description:CSC-846 Golang
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_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:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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: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
Rule name:XWorm_3_0_3_1_Detection
Create hunting rule
Author:Archevod
Description:Detects XWorm versions 3.0 and 3.1

File information

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

Malspam

Formbook

r00 ac9668e3d4b15124dca0754cbcb471f3fe21ec7c86bbe7b004e155cf175c6400

(this sample)

Formbook

Executable exe 17dc6ae2b8a4a5e958a09b19a771e102ec2ebbad438da6123705344eedcadf68

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 17dc6ae2b8a4a5e958a09b19a771e102ec2ebbad438da6123705344eedcadf68
  
Dropping
Formbook
  
Dropping
MD5 d4dea766d9cd1fdb9545c08969811132

Comments