MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be. 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 12 File information Comments
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SHA256 hash: c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be
SHA3-384 hash: e018e6a4e8f9d0a4498ea280b0ed8a03db534b952e72ea81374f619e632b5be80e6086f8ba4fa48685e3d7030f8f93ce
SHA1 hash: b6107996b52d63e9a84d97ca72360dc1f8f2e83d
MD5 hash: 9c84921cee166f2bd7d0fa86c0af6745
humanhash: fruit-johnny-carolina-gee
File name:11001112.js
Download: download sample
Signature Formbook
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File size:6'560 bytes
First seen:2025-02-07 16:34:21 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:1W8NwjWuQ4dRaYLa3vFcjidTM8Hf4h6b+mwk47HkDGutQw+YI/OYms:12Sv4uYLa/FHdIegAv4FQQmMTms
Threatray 18 similar samples on MalwareBazaar
TLSH T10CD166D876E060C8824347B76B1E50D8E99F68AF1EB94C4BD100BD50BA4026EEDE4F75
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
492
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.PUA.JS.Obfus-2185.UNOFFICIAL
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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=67a63746dbfc8aaee8cd87f5
Tags:
trojan shell virus
Verdict:
Suspicious
Labled as:
Riskware.Script.Obfuscated
Link:
https://www.hybrid-analysis.com/sample/c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be
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/1609522
Signature
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
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
Performs DNS queries to domains with low reputation
Potential obfuscated javascript found
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)
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1609522 Sample: 11001112.js Startdate: 07/02/2025 Architecture: WINDOWS Score: 100 48 www.meacci.xyz 2->48 50 www.extremedoge.xyz 2->50 52 6 other IPs or domains 2->52 74 Suricata IDS alerts for network traffic 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus detection for URL or domain 2->78 82 7 other signatures 2->82 12 wscript.exe 1 16 2->12         started        signatures3 80 Performs DNS queries to domains with low reputation 50->80 process4 dnsIp5 60 87.120.120.56, 49704, 49705, 80 UNACS-AS-BG8000BurgasBG Bulgaria 12->60 46 C:\Temp\dddddd.ps1, ASCII 12->46 dropped 100 System process connects to network (likely due to code injection or exploit) 12->100 102 JScript performs obfuscated calls to suspicious functions 12->102 104 Wscript starts Powershell (via cmd or directly) 12->104 106 2 other signatures 12->106 17 powershell.exe 13 12->17         started        file6 signatures7 process8 file9 42 C:\Users\user\AppData\Local\Temp\x.exe, PE32+ 17->42 dropped 70 Found suspicious powershell code related to unpacking or dynamic code loading 17->70 72 Powershell drops PE file 17->72 21 x.exe 14 5 17->21         started        25 conhost.exe 17->25         started        signatures10 process11 file12 44 C:\Users\user\AppData\Local\...\RegAAsm.exe, PE32 21->44 dropped 86 Antivirus detection for dropped file 21->86 88 Multi AV Scanner detection for dropped file 21->88 90 Machine Learning detection for dropped file 21->90 27 RegAAsm.exe 21->27         started        signatures13 process14 signatures15 92 Antivirus detection for dropped file 27->92 94 Multi AV Scanner detection for dropped file 27->94 96 Machine Learning detection for dropped file 27->96 98 Maps a DLL or memory area into another process 27->98 30 cESwOknEVFG2Wzxje6s.exe 27->30 injected process16 signatures17 108 Maps a DLL or memory area into another process 30->108 110 Found direct / indirect Syscall (likely to bypass EDR) 30->110 33 sxstrace.exe 13 30->33         started        process18 signatures19 62 Tries to steal Mail credentials (via file / registry access) 33->62 64 Tries to harvest and steal browser information (history, passwords, etc) 33->64 66 Modifies the context of a thread in another process (thread injection) 33->66 68 3 other signatures 33->68 36 cESwOknEVFG2Wzxje6s.exe 33->36 injected 40 firefox.exe 33->40         started        process20 dnsIp21 54 www.extremedoge.xyz 13.248.169.48, 49853, 49953, 49969 AMAZON-02US United States 36->54 56 www.zltbd.top 198.2.236.221, 49989, 49990, 49991 PEGTECHINCUS United States 36->56 58 2 other IPs or domains 36->58 84 Found direct / indirect Syscall (likely to bypass EDR) 36->84 signatures22
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be/
Threat name:
Script-JS.Dropper.Heuristic
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Status:
Malicious
First seen:
2025-02-06 22:23:28 UTC
AV detection:
3 of 38 (7.89%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yv2rgzoxpfjwutbb2omz543vkrx5w3adzyu5lsdaed7bx5w6mg7a._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
0574298c67f144f1af0558651e6dd61aa9de001fbffd5a17c041732460556d7c
Formbook
0c073edae8314eb90ac4d7ee3c46428a22eb787f12df3ce0465f4cb924ed05c6
Formbook
0fee68a748cf6a48faba2bf63129dbf08cf9c4d2496bd9946818329c74b6f9a1
Formbook
1791410cac40d8b4d76b569f1db728502164124881a5555a769c68eaca19ccb4
Formbook
47b182288c5f580e495435f773f7a8745b4bf90cd19db821dfce207eb10e3f23
Formbook
5d4def5d3f57c0afe09c72c567e480af017822cb84ddedfc80b74e0a561d4463
Formbook
e232f8344f6c183e783887263b5da10fbec109249b628dba960a4b60ff52a36f
Formbook
error
Formbook
+ 8 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250207-t3srwaymh1/
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
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/c5751365d779536a4c21d3999ef375546fdb6c03ce29d5c86020fe1bf6de61be

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:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
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:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
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
Create hunting rule
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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