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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16
SHA3-384 hash: f2657d0e6c78fa64ec8557bbeec8b8cde5c0c774e9120daf3458e6063ff5831aec608592da840b16e91d5b5f697f146e
SHA1 hash: 2a11606de451c734115180696a7d1dc5531fce2f
MD5 hash: 399705c07d18922e905baf255aee15ed
humanhash: north-nitrogen-network-mobile
File name:Swift ref. TT 810-363295460.js
Download: download sample
Signature Formbook
Create hunting rule
File size:1'278'599 bytes
First seen:2026-07-06 20:25:49 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:FoPcnZQuCGU2vPpGmH3fpm/9IGnpYs59+OhQwnPEQFQadQuQDj8:lHvsmvoDBhdIadxl
Threatray 3'619 similar samples on MalwareBazaar
TLSH T11A453360DE2A7E690AE8DA3470B71F1A0FD18DD8D4297073BE8636C35736AD06C27C59
Magika javascript
Reporter threatcat_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4c0f7b762b0b26f3d0f213
Tags:
autoit emotet
Verdict:
Malicious
Labled as:
SVM:TrojanDownloader/JS.Nemucod
Link:
https://www.hybrid-analysis.com/sample/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16
Verdict:
Malicious
File Type:
js
First seen:
2026-07-06T03:55:00Z UTC
Last seen:
2026-07-08T15:32:00Z UTC
Hits:
~10000
Detections:
HEUR:Trojan.PowerShell.Kryptik.gen HEUR:Trojan-Downloader.Script.Generic Trojan.JS.SAgent.sb Trojan-Spy.Win32.Noon.sb HEUR:Trojan.Script.Generic HEUR:Worm.Script.Generic Trojan.Win32.Shellcode.sb Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Injector.sb Trojan-Dropper.JS.SDrop.sb PDM:Trojan.Win32.Generic Backdoor.Win32.Androm.sb
Link:
https://opentip.kaspersky.com/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16/results?tab=lookup
Result
Threat name:
Koadic, DonutLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1938183
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Creates a thread in another existing process (thread injection)
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript file contains suspicious strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: Suspicious Script Execution From Temp Folder
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)
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 DonutLoader
Yara detected FormBook
Yara detected Koadic BAT payload
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1938183 Sample: Swift ref. TT 810-363295460.js Startdate: 06/07/2026 Architecture: WINDOWS Score: 100 84 www.vadelix.com 2->84 86 www.plantaonewsms.com.br 2->86 88 9 other IPs or domains 2->88 96 Suricata IDS alerts for network traffic 2->96 98 Malicious sample detected (through community Yara rule) 2->98 100 Antivirus detection for URL or domain 2->100 102 12 other signatures 2->102 14 wscript.exe 1 2 2->14         started        18 vijewyufveonabghulluonouceyasi.exe 2->18         started        20 vijewyufveonabghulluonouceyasi.exe 2->20         started        22 tunnel.sys 4 2->22         started        signatures3 process4 file5 82 C:\Users\user\AppData\...\tmp998890.bat.gz, gzip 14->82 dropped 132 JScript performs obfuscated calls to suspicious functions 14->132 134 Suspicious powershell command line found 14->134 136 Wscript starts Powershell (via cmd or directly) 14->136 144 3 other signatures 14->144 24 cmd.exe 2 14->24         started        28 powershell.exe 16 14->28         started        138 Writes to foreign memory regions 18->138 140 Allocates memory in foreign processes 18->140 142 Creates a thread in another existing process (thread injection) 18->142 30 msra.exe 1 18->30         started        32 msra.exe 20->32         started        signatures6 process7 file8 78 C:\Users\user\AppData\...\aqxuklgowzoifs.ps1, ASCII 24->78 dropped 118 Wscript starts Powershell (via cmd or directly) 24->118 34 powershell.exe 1 23 24->34         started        36 conhost.exe 24->36         started        80 C:\Users\user\AppData\Local\...\tmp998890.bat, ASCII 28->80 dropped 120 Found suspicious powershell code related to unpacking or dynamic code loading 28->120 38 conhost.exe 28->38         started        122 Maps a DLL or memory area into another process 30->122 40 EQYcgIqDyAj3op.exe 30->40 injected 44 msra.exe 9 30->44         started        46 msra.exe 30->46         started        48 msra.exe 32->48         started        50 msra.exe 32->50         started        signatures9 process10 dnsIp11 52 vijewyufveonabghulluonouceyasi.exe 34->52         started        55 conhost.exe 34->55         started        90 hk6.msthx.com 103.175.129.250, 49722, 49723, 49724 UK2NET-ASGB United Kingdom 40->90 92 www.30nama.store 103.224.212.211, 49706, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 40->92 94 3 other IPs or domains 40->94 124 Maps a DLL or memory area into another process 40->124 57 SearchIndexer.exe 40->57         started        signatures12 process13 signatures14 104 Writes to foreign memory regions 52->104 106 Allocates memory in foreign processes 52->106 108 Creates a thread in another existing process (thread injection) 52->108 59 msra.exe 1 52->59         started        process15 signatures16 126 Maps a DLL or memory area into another process 59->126 128 Unusual module load detection (module proxying) 59->128 62 84T94sI0vdx.exe 59->62 injected 65 msra.exe 1 9 59->65         started        67 msra.exe 59->67         started        process17 signatures18 130 Maps a DLL or memory area into another process 62->130 69 SearchIndexer.exe 13 62->69         started        process19 signatures20 110 Tries to steal Mail credentials (via file / registry access) 69->110 112 Tries to harvest and steal browser information (history, passwords, etc) 69->112 114 Modifies the context of a thread in another process (thread injection) 69->114 116 4 other signatures 69->116 72 chrome.exe 69->72         started        74 firefox.exe 69->74         started        process21 process22 76 WerFault.exe 72->76         started       
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16/
Verdict:
Malicious
Threat:
Trojan-Dropper.Win32.SDrop
Link:
https://tip.neiki.dev/file/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16
Threat name:
Script-JS.Trojan.DonutLoader
Create hunting rule
Status:
Malicious
First seen:
2026-07-06 13:12:49 UTC
File Type:
Text
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmdojqz2h3lcmf6alhxuoyu3ijuxd4tzn5egispbtlscd4rj7qla._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
Similar samples:
30577961b8385513744ff7dadade82b2a63f8fb2f4355dfa7ff13a067119d281
Formbook
35f3ee553626b2267e4a8f35dce5b40840e5a461f13652bd2659681c31068805
Formbook
3f9573841a93c95c4070b90b71ea08be448733d2562f6d0457dd70e0b2093ae0
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4198b9f63c65311fe63c37469bebd0085c8c348c947ea42f30306796d11eef78
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7cff45c050f2aea05a00eab59968fdc7e3a5562997405997a1d04c83186d4caa
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c8115cc0506a6265a0714ab5d151bb7cd8032c999fea2987edd343b8e76cdbcf
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d20d4e90de355c90f4d9a0b7b80cf1aa32fe8b9b7aba5db730cfdde16df43021
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e29156986137877f199fadf905f7fd2ede4d261982f591001712f3c734dff621
Formbook
error
Formbook
+ 3'609 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader adware discovery execution loader persistence spyware
Link:
https://tria.ge/reports/260706-y7r4cshs5j/
Behaviour
Checks SCSI registry key(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Adds Run key to start application
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Boot or Logon Autostart Execution: Active Setup
Detects DonutLoader
Family: DonutLoader
Malware family:
DonutLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b06e4c33a3e/report/overview.html
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/4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16

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:BlackGuard_Rule
Create hunting rule
Author:Jiho Kim
Description:Yara rule for BlackGuarad Stealer v1.0 - v3.0
Reference:https://www.virustotal.com/gui/file/67843d45ba538eca29c63c3259d697f7e2ba84a3da941295b9207cdb01c85b71/detection
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:telebot_framework
Create hunting rule
Author:vietdx.mb

File information

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

Malspam

Formbook

Java Script (JS) js 4b06e4c33a3ed62617c059ef47629b426971f2796f486449e19ae421f229fc16

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments