MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec
SHA3-384 hash: 9382912940c9175072db5b5914067ba2ffd249609174678789596cae4319012a16c7d167dc654b5b10b5488bff6e064e
SHA1 hash: fc784d2a81f381493173dd88820a836ea5f68dbc
MD5 hash: a4b45be3da1505dff7114b72e8253952
humanhash: hamper-aspen-grey-equal
File name:Τιμολόγιο_1113641614·pdf.js
Download: download sample
Signature Formbook
Create hunting rule
File size:389'936 bytes
First seen:2025-10-06 11:16:51 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:OB0B+BkBYkBdBwBdB/BBBXBmBnBaBXB8BtBrBIBDB9BABYBXBfBGBQ:UqEaYa/G/5TxMBgxyPV+NfWOxZsQ
Threatray 1'751 similar samples on MalwareBazaar
TLSH T11B846C61EC251A7B8F872389ACA51795CAFD85450A2390F2F3DE4B4D620A4ECC77E374
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e3a55291bc581176cc61f2
Tags:
malware
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/68e3a542f377ab231052ab25/reports/5ad63f7f-d67c-48db-9608-037ddc3e839d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec
Verdict:
Malicious
File Type:
js
First seen:
2025-10-06T06:55:00Z UTC
Last seen:
2025-10-08T08:49:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec/results?tab=lookup
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1789701
Signature
Creates processes via WMI
Early bird code injection technique detected
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
JavaScript source code contains functionality to generate code involving a shell, file or stream
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected GuLoader
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1789701 Sample: #U03a4#U03b9#U03bc#U03bf#U0... Startdate: 06/10/2025 Architecture: WINDOWS Score: 100 35 drive.usercontent.google.com 2->35 37 drive.google.com 2->37 43 Malicious sample detected (through community Yara rule) 2->43 45 Yara detected FormBook 2->45 47 Yara detected GuLoader 2->47 49 3 other signatures 2->49 8 powershell.exe 34 2->8         started        11 wscript.exe 1 1 2->11         started        signatures3 process4 signatures5 51 Early bird code injection technique detected 8->51 53 Writes to foreign memory regions 8->53 55 Found suspicious powershell code related to unpacking or dynamic code loading 8->55 65 4 other signatures 8->65 13 msiexec.exe 6 8->13         started        16 conhost.exe 8->16         started        18 msiexec.exe 8->18         started        20 msiexec.exe 8->20         started        57 Wscript starts Powershell (via cmd or directly) 11->57 59 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->59 61 Suspicious execution chain found 11->61 63 Creates processes via WMI 11->63 22 powershell.exe 14 28 11->22         started        process6 dnsIp7 67 Maps a DLL or memory area into another process 13->67 69 Hides threads from debuggers 13->69 25 OeoKk7t95tPWw.exe 13->25 injected 27 xQRjTzylb3A17.exe 13->27 injected 29 2t3pXdsTrUeoeR.exe 13->29 injected 31 5Pc0J2bQn1Ty.exe 13->31 injected 39 drive.usercontent.google.com 142.250.64.193, 443, 49691, 49695 GOOGLEUS United States 22->39 41 drive.google.com 192.178.50.78, 443, 49690, 49694 GOOGLEUS United States 22->41 71 Found suspicious powershell code related to unpacking or dynamic code loading 22->71 73 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 22->73 75 Loading BitLocker PowerShell Module 22->75 33 conhost.exe 22->33         started        signatures8 process9
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec
Threat name:
Script-JS.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-10-06 11:18:35 UTC
File Type:
Text
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nrgat5xz5whb2hjnctcgqdkx33qejcdmo7l3wddue3ua7i75i7wa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5cb34177d0289e9737e5a261b8d1aac227656b96c768f789d6fcc9bc20adb05e
Formbook
6c395098c834dc56befed790a3f47f542376b19d4bc10e34b23e315afe8108e9
Formbook
774d0d72b093ac1da3eb76af471b1e21e1cd0f36e5a80a429e7e51c623eefdeb
Formbook
abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0
Formbook
ad014d604ccb527054c3e00fbc8f963b916bd22f3b571275c8a149881f4d1daa
Formbook
d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4
Formbook
e715ca77bca80baec611ba2f5982ce26a52211523f2db2115165e593b65ff6ef
Formbook
e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce
Formbook
error
Formbook
f6469663f0a38647f54764309023eefa956a37e381b7b6fabe2882b75464bd8b
Formbook
fd7efbd3bad1830b0b43cb2dba3a21e67f1794cccc6df4b1b55d6a31c5c1895a
Formbook
+ 1'741 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251006-nd2qlatmz4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
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/6c4c09f6f9ed8e1d1d2d14c4680d57dee044886c77d7bb0c7426e80fa3fd47ec

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Comments