MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6. 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 1 File information Comments
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SHA256 hash: 1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6
SHA3-384 hash: e297f3b10cf423f61d33d02bdd8eb2243601670bd72eccefbb5dfd3022585db3906a6636f230267ebf5423acfd6636ad
SHA1 hash: 9fc036acb0fccc60320060864f779ffb154216e1
MD5 hash: d7ac142c0f2cbcb3b466fb811e19f97b
humanhash: angel-foxtrot-tennis-mockingbird
File name:d7ac142c0f2cbcb3b466fb811e19f97b.js
Download: download sample
Signature Formbook
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File size:33'913 bytes
First seen:2026-03-08 07:13:22 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:KWhgJHSeSZqU5OXuBwjSuikXJ6UvhBc34APBP9lRDFTwOZrJfUP7:KtShw4flkRe4AJRDhwOhJsT
Threatray 2'719 similar samples on MalwareBazaar
TLSH T13BE20DE715E907EA860BC7B2F40AC58AC4864DFAD3085D58717B42FDA3B477B88D2472
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Packed.165.313.19545.UNOFFICIAL
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Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69ad21cce41a5a099930d5c2
Tags:
phishing shell sage smtp
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint repaired
Link:
https://www.filescan.io/uploads/69ad21c9cd25bfe1dfe44005/reports/d29d77ed-afb7-4032-aa65-2a1baac1ea8e/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6
Verdict:
Malicious
File Type:
js
Link:
https://opentip.kaspersky.com/1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1880107
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Creates processes via WMI
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
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line 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 MSIL Injector
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1880107 Sample: laPkGZYSCn.js Startdate: 08/03/2026 Architecture: WINDOWS Score: 100 34 yaso.su 2->34 36 pastefy.app 2->36 38 fil.ydns.eu 2->38 56 Suricata IDS alerts for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 13 other signatures 2->62 9 wscript.exe 1 2->9         started        12 svchost.exe 1 1 2->12         started        signatures3 process4 dnsIp5 66 Suspicious powershell command line found 9->66 68 Wscript starts Powershell (via cmd or directly) 9->68 70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->70 72 2 other signatures 9->72 15 powershell.exe 14 24 9->15         started        40 127.0.0.1 unknown unknown 12->40 signatures6 process7 dnsIp8 42 fil.ydns.eu 213.142.149.20, 49696, 80 HOSTING-DUNYAMTR Turkey 15->42 44 pastefy.app 49.13.5.8, 443, 49692 HETZNER-ASDE Germany 15->44 46 yaso.su 104.21.77.239, 443, 49693 CLOUDFLARENETUS United States 15->46 30 C:\Users\user\AppData\...\w2ytcndn.cmdline, Unicode 15->30 dropped 48 Writes to foreign memory regions 15->48 50 Modifies the context of a thread in another process (thread injection) 15->50 52 Suspicious execution chain found 15->52 54 Injects a PE file into a foreign processes 15->54 20 RegAsm.exe 15->20         started        23 csc.exe 3 15->23         started        26 conhost.exe 15->26         started        file9 signatures10 process11 file12 64 Found direct / indirect Syscall (likely to bypass EDR) 20->64 32 C:\Users\user\AppData\Local\...\w2ytcndn.dll, PE32 23->32 dropped 28 cvtres.exe 1 23->28         started        signatures13 process14
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6/
Threat name:
Win32.Trojan.Kepavll
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Status:
Malicious
First seen:
2026-03-06 01:20:05 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dpc7fu6i3h7ritywuypeaglit26xocl4u2wjd6dk2emee5otahla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1c07c3eff0efd95822fe3db3878093b225d459022ebc2625574c33d84113d15b
Formbook
39d4b2c2f232d51c44e28e77ef48a8f57803f053f7ab864de307f6a45fe5705e
Formbook
40ead66f8b514c57ecda339f991d248e99c6a164b64d5f1e05d69567bfef1a0a
Formbook
71043a4c0e0ce7ea11b1f1de15594cd3ddb7048a34134022c1101e7653d5a2f6
Formbook
c506931fb1c4252abed4ab22d82f2ebc88e46f58dd83ddca62b03c5ea6d8dc1e
Formbook
dabdfe0696d886914b534e0f90d81627113409ec8b3f3cdcad0aebd2e5bc8aea
Formbook
dc8a316ddc4d56791f78f417e0fa86f36a545f58a64ba165ae6ff41c91068983
Formbook
e26391c784afa1e9f53f35c309ec06fdaa6df850b23eebe2028bd3e642ec9d24
Formbook
error
Formbook
f0a98a72b7b1c86ac4ce457e7978a46e8af53393e1007d2fe94306bb042388d1
Formbook
+ 2'709 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/260308-h2tr1ac14x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Badlisted process makes network request
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/1bc5f2d3c8d9ff144f16a61e4019689ebd77097ca6ac91f86ad1184275d301d6

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:ClamAV_Emotet_String_Aggregate
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File information

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

Comments