MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50. 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 8 File information Comments
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SHA256 hash: 35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50
SHA3-384 hash: 5823f46e76216ad7dc8af35506fdc0d8360db8bd86a92c767f1b3503901bca24601a5b7962a27113c52dcebcd8d4af32
SHA1 hash: 9aff14582a8afa9f40a727228c902c30adfae33e
MD5 hash: 1f97b20978c83023e093b1dd8ccc8006
humanhash: friend-july-mobile-emma
File name:2025-02-06.js
Download: download sample
Signature Formbook
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File size:2'864 bytes
First seen:2025-02-07 16:34:29 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 48:wbm6wbyA7IVdXvtsXuiYBP5TRlSSG6ZSdYuIH7bcvsJDzMiC:wPIyzdXZBaSneYbncvsK3
TLSH T1235166772B1BFE8817974797562A40ADD687850B58C89403F196FC81B85433FFE61334
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
506
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.PUA.JS.Obfus-2525.UNOFFICIAL
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Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a63748ab8a2d1c6bcd907d
Tags:
shell virus agent
Verdict:
Malicious
Labled as:
Trojan.Script.Heuristic
Link:
https://www.hybrid-analysis.com/sample/35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50
Result
Verdict:
SUSPICIOUS
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1609521
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
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
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
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:
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behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1609521 Sample: 2025-02-06.js Startdate: 07/02/2025 Architecture: WINDOWS Score: 100 45 www.031234440.xyz 2->45 47 www.fz977.xyz 2->47 49 6 other IPs or domains 2->49 73 Suricata IDS alerts for network traffic 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Antivirus detection for URL or domain 2->77 81 8 other signatures 2->81 12 wscript.exe 1 16 2->12         started        signatures3 79 Performs DNS queries to domains with low reputation 47->79 process4 dnsIp5 57 87.120.120.56, 49706, 80 UNACS-AS-BG8000BurgasBG Bulgaria 12->57 43 C:\Temp\dddddd.ps1, ASCII 12->43 dropped 99 System process connects to network (likely due to code injection or exploit) 12->99 101 JScript performs obfuscated calls to suspicious functions 12->101 103 Wscript starts Powershell (via cmd or directly) 12->103 105 2 other signatures 12->105 17 powershell.exe 13 12->17         started        file6 signatures7 process8 file9 41 C:\Users\user\AppData\Local\Temp\x.exe, PE32 17->41 dropped 67 Suspicious execution chain found 17->67 69 Found suspicious powershell code related to unpacking or dynamic code loading 17->69 71 Powershell drops PE file 17->71 21 x.exe 3 17->21         started        24 conhost.exe 17->24         started        signatures10 process11 signatures12 85 Antivirus detection for dropped file 21->85 87 Multi AV Scanner detection for dropped file 21->87 89 Machine Learning detection for dropped file 21->89 91 3 other signatures 21->91 26 RegAsm.exe 21->26         started        process13 signatures14 93 Maps a DLL or memory area into another process 26->93 29 iyjar8bfk3XiC.exe 26->29 injected process15 signatures16 95 Maps a DLL or memory area into another process 29->95 97 Found direct / indirect Syscall (likely to bypass EDR) 29->97 32 ROUTE.EXE 13 29->32         started        process17 signatures18 59 Tries to steal Mail credentials (via file / registry access) 32->59 61 Tries to harvest and steal browser information (history, passwords, etc) 32->61 63 Modifies the context of a thread in another process (thread injection) 32->63 65 3 other signatures 32->65 35 iyjar8bfk3XiC.exe 32->35 injected 39 firefox.exe 32->39         started        process19 dnsIp20 51 031234440.xyz 144.76.229.203, 49710, 49711, 49712 HETZNER-ASDE Germany 35->51 53 www.boldhozons.website 66.29.133.199, 49719, 49720, 49721 ADVANTAGECOMUS United States 35->53 55 5 other IPs or domains 35->55 83 Found direct / indirect Syscall (likely to bypass EDR) 35->83 signatures21
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50/
Threat name:
Script-JS.Dropper.Heuristic
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Status:
Malicious
First seen:
2025-02-07 09:49:35 UTC
File Type:
Text (VBS)
AV detection:
3 of 38 (7.89%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gulq5amyspncynesbtjctzcurro7oflkwdojxlopktu3bxj5jria._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250207-t3srwazpej/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Blocklisted 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/35170e819893da2c34920cd229e4548c5df7156ab0dc9badcf54e9b0dd3d4c50

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:Formbook
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Author:kevoreilly
Description:Formbook Payload
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_obfuscated_JS_obfuscatorio
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Author:@imp0rtp3
Description:Detect JS obfuscation done by the js obfuscator (often malicious)
Reference:https://obfuscator.io
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

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