MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf. 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: 9


Intelligence 9 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf
SHA3-384 hash: e7bc507a4f989937676a12ca5ff4e9e7bcd6ed5e64062bff04c6a527b1ae71adcb90a1596c536133fe173a80b51161b6
SHA1 hash: eb3cefde16a1889776c5cc6ab8a4707c69685a0b
MD5 hash: f1970a812d4256fad85cc2869cdee499
humanhash: princess-oven-queen-finch
File name:PAYMENT.r15
Download: download sample
Signature Formbook
Create hunting rule
File size:687'582 bytes
First seen:2025-11-10 08:29:19 UTC
Last seen:2025-11-10 11:54:03 UTC
File type: rar
MIME type:application/x-rar
ssdeep 12288:jrtostyNCOO0ukaCvELrUjLL8TXCUvY1Ro/sBLo659fud44vj1jbII5SSP:jxot/ukaCcUADQ5Lo69fYvr5IQ
TLSH T117E42327D50B97BABE813F618737F96FA635C2D36B1ECA13C335BB041626178C662094
TrID 58.3% (.RAR) RAR compressed archive (v-4.x) (7000/1)
41.6% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:FormBook payment r15 rar


Avatar
cocaman
Malicious email (T1566.001)
From: "jason.teo@tst.com.sg" (likely spoofed)
Received: "from [91.92.243.33] (unknown [91.92.243.33]) "
Date: "10 Nov 2025 09:42:34 -0800"
Subject: "RE: PAYMENT DUE & SHIPMENT STATUS"
Attachment: "PAYMENT.r15"

Intelligence

File Origin
# of uploads :
3
# of downloads :
72
Origin country :
CH CH
File Archive Information

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

File name:PAYMENT.exe
File size:1'193'472 bytes
SHA256 hash: dfb26be7653792b528f1eebbf369f94a76c1f40ff8cb50377f8d49d0ed846417
MD5 hash: c25721935a14aaa96d1235a220db6d65
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Rar_fs2731.UNOFFICIAL
Create hunting rule

Sanesecurity.Foxhole.Rar_fs1052.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69117557ac1ae236e178f401
Tags:
autoit emotet
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script control fingerprint fingerprint hacktool installer-heuristic keylogger lolbin masquerade microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/6911a2a9d63f755c32c3f5ad/reports/b458f628-fdfa-4739-896c-5af02bb9a421/overview
Verdict:
Malicious
Labled as:
Trojan.Wacatac
Link:
https://www.hybrid-analysis.com/sample/b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf
Verdict:
Malicious
File Type:
rar
First seen:
2025-11-09T23:22:00Z UTC
Last seen:
2025-11-11T02:24:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf/results?tab=lookup
Verdict:
Malware
YARA:
2 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Rar Archive Suspect
Link:
https://app.malva.re/file/f1970a812d4256fad85cc2869cdee499
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-11-10 03:48:14 UTC
File Type:
Binary (Archive)
Extracted files:
25
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xhjv4wcf7fwq4xnyngvibjhoiwj2onafyv7jbgevw3mfri66kthq._file
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/b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

File information

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

Malspam

Formbook

rar b9d35e5845f96d0e5db869aa80a4ee4593a73405c57e909895b6d858a3de54cf

(this sample)

Formbook

Executable exe dfb26be7653792b528f1eebbf369f94a76c1f40ff8cb50377f8d49d0ed846417

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 dfb26be7653792b528f1eebbf369f94a76c1f40ff8cb50377f8d49d0ed846417
  
Dropping
Formbook
  
Dropping
MD5 c25721935a14aaa96d1235a220db6d65

Comments