MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86
SHA3-384 hash: ddcc69ab22fef31cb2f0302f792d783e78133583a80ca0111ca0c6c9d0be2003b8d5f590df84ad7f57a91954ac005815
SHA1 hash: b517658720528d91ad88ed8193c591326fa074f4
MD5 hash: 9b47dd0be3a8a61d1e95797c3f698367
humanhash: hotel-floor-eighteen-gee
File name:Q250804-09·pdf.js
Download: download sample
Signature Formbook
Create hunting rule
File size:17'669 bytes
First seen:2025-09-23 15:14:32 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:Ts1V977QXBgmRQXBz3e4bAx7sldoHFFqQXBzIBQXBzIf41LWqQXBb1ujoMQXBzDd:Ts1V940SHHBCWCf41Lud0obpcU8mrBUa
Threatray 1'388 similar samples on MalwareBazaar
TLSH T1B782E5C19983EC760B092B061DE489669DF84976F111D8E1B95FE7313108798CFBE1DB
Magika javascript
Reporter pr0xylife
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
RO RO
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.26863.JsHeur.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d2b963a8481b7a76abd2b4
Tags:
n/a
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/68d2b95f58f24ea0d229de93/reports/045f3eba-b3a1-4dcf-ad5f-ea6f7fde9038/overview
Verdict:
Malicious
Labled as:
VBS/Agent.TKB trojan
Link:
https://www.hybrid-analysis.com/sample/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86
Verdict:
Unknown
File Type:
js
First seen:
2025-09-23T01:41:00Z UTC
Last seen:
2025-09-23T01:41:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86/results?tab=lookup
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86
Threat name:
Script-JS.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-09-23 05:27:06 UTC
AV detection:
4 of 38 (10.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rcfmihltymxrxjy3sfyl6le3ds6o6jpnafgsxqgvf2xk23n37kda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5b6a556176c71e37636f7eecd1272e9d9f2fc52d9e4b6293349700c78125ca41
Formbook
5cb34177d0289e9737e5a261b8d1aac227656b96c768f789d6fcc9bc20adb05e
Formbook
774d0d72b093ac1da3eb76af471b1e21e1cd0f36e5a80a429e7e51c623eefdeb
Formbook
7bb1496e66ce154f68fcb8df8f4e282b64d9783f1058ec05433415052d10ad76
Formbook
8c0cd5bdae1355f8bc7f7af9102fb77eb8b52e432cdbe17c27456be4af1082ab
Formbook
a4e1ceb8458e0bca4119adb33ded5b1ef154f0ba69594b2079fbbcfb48cbe4ce
Formbook
b054037fd96fb4b33501a672ba26d0eebdc03061cbfdeb203e1f518d2eed552b
Formbook
c69a7800b5482d1e8e984e2e5ad548e057e1e9236e3ba937b167833e9c3302e2
Formbook
dd6d8363c2761f77948a54be192dbbe563d2da9dd8f922102547631ccbd05ebb
Formbook
error
Formbook
fd7efbd3bad1830b0b43cb2dba3a21e67f1794cccc6df4b1b55d6a31c5c1895a
Formbook
+ 1'378 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/250923-smnbsasrz4/
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/888ac41d73c32f1ba71b9170bf2c9b1cbcef25ed014d2bc0d52eaead6dbbfa86

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