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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e
SHA3-384 hash: cea6ac700b213047fb003f19432d0edae87e7828f15bc02ed254d803b1bcdf5788027128c95a459302a5de515edd2cfa
SHA1 hash: 4d22b1c9ec316ac89832be92fc9433a08e0d56de
MD5 hash: 44bc63f422eb88b6647f66faf1dc7711
humanhash: helium-purple-river-beryllium
File name:booking form-中欧铁运科技 深圳.xls.js
Download: download sample
Signature Formbook
Create hunting rule
File size:2'884'926 bytes
First seen:2026-08-31 08:29:07 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:PyylimiX0bUdpA6Ff6Vg71Bj0e00m5j3k7ESHic/C+4fDtaqEwlHB01TcxktSSHF:Ng93PfxoBSr/jkG/jV0GWFBs
TLSH T1ADD5C7B332EFB4472A46BB0895DD6865CB7981368AC3F5E4B4EB09E0198F8D509D0F47
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Obfus-2303.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Labled as:
SVM:TrojanDownloader/JS.MalBehav.gen
Link:
https://www.hybrid-analysis.com/sample/d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e
Verdict:
Malicious
File Type:
js
First seen:
2026-08-31T02:58:00Z UTC
Last seen:
2026-09-01T00:42:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1966066
Signature
.NET source code contains potential unpacker
AI detected malicious Powershell script
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Cscript/Wscript Uncommon Script Extension Execution
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Uses an obfuscated file name to hide its real file extension (double extension)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1966066 Sample: booking form-#U4e2d#U6b27#U... Startdate: 31/08/2026 Architecture: WINDOWS Score: 100 44 www.qkonut.xyz 2->44 46 www.cloatter.xyz 2->46 48 12 other IPs or domains 2->48 64 Suricata IDS alerts for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 72 10 other signatures 2->72 11 wscript.exe 3 2->11         started        signatures3 70 Performs DNS queries to domains with low reputation 46->70 process4 file5 42 C:\Temp\ps_KnHre0Ie6yFV_1788167081822.ps1, ASCII 11->42 dropped 86 JScript performs obfuscated calls to suspicious functions 11->86 88 Suspicious powershell command line found 11->88 90 Wscript starts Powershell (via cmd or directly) 11->90 92 4 other signatures 11->92 15 powershell.exe 16 11->15         started        18 taskkill.exe 1 11->18         started        signatures6 process7 signatures8 94 Writes to foreign memory regions 15->94 96 Sample uses process hollowing technique 15->96 98 Injects a PE file into a foreign processes 15->98 20 aspnet_compiler.exe 15->20         started        23 aspnet_compiler.exe 15->23         started        25 conhost.exe 15->25         started        29 20 other processes 15->29 27 conhost.exe 18->27         started        process9 signatures10 74 Modifies the context of a thread in another process (thread injection) 20->74 76 Maps a DLL or memory area into another process 20->76 78 Queues an APC in another process (thread injection) 20->78 80 Found direct / indirect Syscall (likely to bypass EDR) 20->80 31 Yzm29binWnOnVJ.exe 20->31 injected 82 Unusual module load detection (module proxying) 23->82 84 Switches to a custom stack to bypass stack traces 23->84 process11 signatures12 100 Maps a DLL or memory area into another process 31->100 102 Found direct / indirect Syscall (likely to bypass EDR) 31->102 34 TCPSVCS.EXE 13 31->34         started        process13 signatures14 56 Tries to steal Mail credentials (via file / registry access) 34->56 58 Tries to harvest and steal browser information (history, passwords, etc) 34->58 60 Modifies the context of a thread in another process (thread injection) 34->60 62 3 other signatures 34->62 37 UF9Hjzszzkndj2.exe 34->37 injected 40 firefox.exe 34->40         started        process15 dnsIp16 50 www.savemyvideos.digital 103.224.212.210, 49734, 49743, 49744 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 37->50 52 www.cloatter.xyz 66.29.152.174, 49753, 49754, 49755 NAMECHEAP-NET-NamecheapIncUS United States 37->52 54 5 other IPs or domains 37->54
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e/
Threat name:
Script-JS.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-08-31 08:30:50 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 24 (41.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3gdpudez7htxerbf26k7gq6s6vn7c2jx27tr4y5jin6aicudaaha._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260831-kdwb2azzbz/
Behaviour
Kills process with taskkill
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
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/d986fa0c99f9e7724425d795f343d2f55bf16937d7e71e63a9437c040a83000e

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:Base64_Encoded_Powershell_Directives
Create hunting rule
Rule name:SUSP_obfuscated_JS_obfuscatorio
Create hunting rule
Author:@imp0rtp3
Description:Detect JS obfuscation done by the js obfuscator (often malicious)
Reference:https://obfuscator.io
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