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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda
SHA3-384 hash: c280c64ba428bacc168b14d347cd1eea496b5549d8b366476907568f5311cb6ced8b763ac3386bb6a1f15aadff36d92a
SHA1 hash: f2a051378a4f9a38780dedf0e5ef20ae7670742f
MD5 hash: eedcf5963c7eb5bfb4749833094216ff
humanhash: august-december-mexico-leopard
File name:Samples.js
Download: download sample
Signature Formbook
Create hunting rule
File size:58'584 bytes
First seen:2026-10-07 18:01:47 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:Xnyw9wZysFTfu1CxQsmsohv+yEquaU+4FHwAE7U:Xnyw9wZyshSvt7U
TLSH T1AE43984E4B460217C5205DD881CAE1FE97F8E4531628D885A79B9FDEE71CC32FE69E20
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
161
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad04dc4f4e17c78f71566ef
Tags:
virus shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm encrypted fingerprint repaired
Link:
https://www.filescan.io/uploads/6ac689312db7b0ff5b5c84e7/reports/dff95ae5-b707-40a7-acf5-d69573991208/overview
Verdict:
Malicious
Labled as:
SVM:TrojanDownloader/JS.MalBehav.gen
Link:
https://www.hybrid-analysis.com/sample/2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda
Verdict:
Malicious
File Type:
js
First seen:
2026-10-07T13:43:00Z UTC
Last seen:
2026-10-09T10:03:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda/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/1983771
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
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
Obfuscated command line found
Performs DNS queries to domains with low reputation
Powershell connects to network
Queues an APC in another process (thread injection)
Sigma detected: Dot net compiler compiles file from suspicious location
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 starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1983771 Sample: Samples.js Startdate: 07/10/2026 Architecture: WINDOWS Score: 100 65 www.sedtub.xyz 2->65 67 www.shdv.bid 2->67 69 17 other IPs or domains 2->69 85 Suricata IDS alerts for network traffic 2->85 87 Malicious sample detected (through community Yara rule) 2->87 89 Antivirus detection for URL or domain 2->89 93 8 other signatures 2->93 11 wscript.exe 2 2->11         started        14 VvgBmcBQR8KeCk.exe 2->14 injected 16 FaUubhkg0Q.exe 2->16 injected signatures3 91 Performs DNS queries to domains with low reputation 65->91 process4 dnsIp5 115 JScript performs obfuscated calls to suspicious functions 11->115 117 Wscript starts Powershell (via cmd or directly) 11->117 119 Obfuscated command line found 11->119 125 4 other signatures 11->125 19 cmd.exe 1 11->19         started        121 Maps a DLL or memory area into another process 14->121 123 Found direct / indirect Syscall (likely to bypass EDR) 14->123 22 help.exe 13 14->22         started        59 www.gfxrgw.cn 154.19.197.66, 49757, 49758, 49759 NEBULA-GLOBAL-NebulaGlobalLLCUS Hong Kong SAR China 16->59 61 www.sedtub.xyz 66.29.142.47, 49773, 49774, 49775 NAMECHEAP-NET-NamecheapIncUS United States 16->61 63 6 other IPs or domains 16->63 signatures6 process7 signatures8 95 Wscript starts Powershell (via cmd or directly) 19->95 97 Obfuscated command line found 19->97 24 powershell.exe 14 25 19->24         started        29 conhost.exe 19->29         started        99 Tries to steal Mail credentials (via file / registry access) 22->99 101 Tries to harvest and steal browser information (history, passwords, etc) 22->101 103 Modifies the context of a thread in another process (thread injection) 22->103 105 3 other signatures 22->105 31 firefox.exe 22->31         started        process9 dnsIp10 71 31.40.204.114, 49743, 80 WHITELABELUS Turkey 24->71 73 64.224.17.115, 49744, 80 VIRTUO-12651980CANADAINCCA United States 24->73 75 2 other IPs or domains 24->75 57 C:\Users\user\AppData\...\p0ybmsb2.cmdline, Unicode 24->57 dropped 107 Suspicious powershell command line found 24->107 109 Writes to foreign memory regions 24->109 111 Injects a PE file into a foreign processes 24->111 113 Powershell connects to network 24->113 33 MSBuild.exe 24->33         started        36 csc.exe 3 24->36         started        39 powershell.exe 10 24->39         started        file11 signatures12 process13 file14 77 Modifies the context of a thread in another process (thread injection) 33->77 79 Maps a DLL or memory area into another process 33->79 81 Queues an APC in another process (thread injection) 33->81 83 3 other signatures 33->83 55 C:\Users\user\AppData\Local\...\p0ybmsb2.dll, PE32 36->55 dropped 41 cvtres.exe 1 36->41         started        43 cmd.exe 1 39->43         started        45 conhost.exe 39->45         started        signatures15 process16 process17 47 taskkill.exe 1 43->47         started        49 taskkill.exe 1 43->49         started        51 taskkill.exe 1 43->51         started        53 conhost.exe 43->53         started       
Score:
65%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda/
Threat name:
Script.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-10-07 16:23:43 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 23 (34.78%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f4nbmd7k245sok66gvzavkoj5a23qffqj6sesa77kw7urrfvr3na._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution
Link:
https://tria.ge/reports/261007-wmn5vssydz/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
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/2f1a160fead73b272bde35720aa9c9e835b814b04fa44903ff55bf48c4b58eda

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