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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b
SHA3-384 hash: 734ba9d04d144858107ebf21f60ff36650d0d006241e72e223940b3ff1aa52212c0f40ce5420bd033a1272f033df8d8c
SHA1 hash: e4633d9476b814e95300a2b5f0dbc7f05227b7c0
MD5 hash: 91d29c006541c1a46c72c1b091c16aae
humanhash: oxygen-fruit-sweet-network
File name:IBAN.js
Download: download sample
Signature Formbook
Create hunting rule
File size:7'398 bytes
First seen:2026-09-10 06:03:36 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:ArN9IOAh69IQT9YRi4RcH9Iw9Q9U629I619m:As
TLSH T143E1D54BF7C15CD0709B026AB0A02848273B985D64117ECF7D5BA197AF8BF8B091AF75
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ac93d57ff69886faa0ad8f3
Tags:
nanocore virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dropper evasive repaired
Link:
https://www.filescan.io/uploads/6aa2485d328844f7c4792b35/reports/4ba2f04d-2ce8-4175-8f18-dd6945e58af0/overview
Verdict:
Malicious
Labled as:
Trojan.NanoCore.JS
Link:
https://www.hybrid-analysis.com/sample/39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b
Verdict:
Malicious
File Type:
js
First seen:
2026-09-09T20:22:00Z UTC
Last seen:
2026-09-11T18:29:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b/results?tab=lookup
Result
Threat name:
DonutLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1971143
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Benign windows process drops PE files
Found direct / indirect Syscall (likely to bypass EDR)
JavaScript source code contains functionality to generate code involving a shell, file or stream
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
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: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DonutLoader
Yara detected FormBook
Yara detected Generic JS Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1971143 Sample: IBAN.js Startdate: 10/09/2026 Architecture: WINDOWS Score: 100 28 productoslili.cl 2->28 30 www.google.com 2->30 32 7 other IPs or domains 2->32 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected DonutLoader 2->44 46 8 other signatures 2->46 10 wscript.exe 1 20 2->10         started        signatures3 process4 dnsIp5 34 productoslili.cl 162.214.96.231, 443, 49743 UNIFIEDLAYER-AS-1-UnifiedLayerUS United States 10->34 26 C:\Users\user\AppData\Local\TempbehaviorgraphQBHFW.exe, PE32 10->26 dropped 56 System process connects to network (likely due to code injection or exploit) 10->56 58 Benign windows process drops PE files 10->58 60 JScript performs obfuscated calls to suspicious functions 10->60 62 2 other signatures 10->62 15 GQBHFW.exe 1 10->15         started        file6 signatures7 process8 signatures9 64 Antivirus detection for dropped file 15->64 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 3 other signatures 15->70 18 ma7QgoJjzj.exe 15->18 injected process10 signatures11 36 Maps a DLL or memory area into another process 18->36 38 Found direct / indirect Syscall (likely to bypass EDR) 18->38 21 regini.exe 18->21         started        process12 signatures13 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Unusual module load detection (module proxying) 21->52 54 Switches to a custom stack to bypass stack traces 21->54 24 NH6r5JTKpsUSd.exe 21->24 injected process14
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b/
Threat name:
Script-JS.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2026-09-10 01:10:44 UTC
File Type:
Text (JavaScript)
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hgwhw75wjofeydjb5jl3xpxugege34nldnsb7laygsgesd3ifq5q._file
Verdict:
malicious
Label(s):
DonutLoader
Create hunting rule
Link:
https://reports.threatray.com/bbc9da93-f92f-4698-84a8-f9eedb5a43ac
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/260910-gsqtba1zdz/
Behaviour
Command and Scripting Interpreter: JavaScript
Badlisted process makes network request
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/39ac7b7fb64b8a4c0d21ea57bbbef4310c4df1ab1b641fac18348c490f682c3b

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: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