MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9. 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: 8


Intelligence 8 IOCs YARA 13 File information Comments
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SHA256 hash: bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9
SHA3-384 hash: 6df48430fdbc0ba093717c86f1d78ef5075a9e1a41e06623e1b0a23b863cc760fab203204eaf8d2a07ba2680017470bc
SHA1 hash: 4671c2b580d80c6dab365a98e52a1d61f94712b9
MD5 hash: 3fe614eb88b53ea08bfeee02bc22f17d
humanhash: idaho-alabama-winter-tennis
File name:RFQ_012025.js
Download: download sample
Signature Formbook
Create hunting rule
File size:2'480 bytes
First seen:2025-01-29 08:31:56 UTC
Last seen:2025-01-30 12:38:20 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 48:bbHuxxwntjj1JWgmkDZmrYuS8NHa0zV7TeJ/qKgwobf:uXwRZYgmkN0VHNy5qKgw2
TLSH T1DA510E6E9E4AD3324236674EC15AC404EB5740279611C211FD8CC984FF34998CDA8BEE
Magika javascript
Reporter TeamDreier
Tags:FormBook js

Intelligence

File Origin
# of uploads :
2
# of downloads :
442
Origin country :
DK DK
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6799e9b529ae628cf42ad731
Tags:
trojan shell virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dropper evasive obfuscated packed
Link:
https://www.filescan.io/uploads/6799e785aed4bbce5aa6f2bd/reports/dfe8f303-0b2a-4510-b517-614ab0ea142d/overview
Verdict:
Suspicious
Labled as:
Trojan.Script.Heuristic
Link:
https://www.hybrid-analysis.com/sample/bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9
Result
Verdict:
UNKNOWN
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1602040
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
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 submitted file
PE file contains section with special chars
PE file has nameless sections
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1602040 Sample: RFQ_012025.js Startdate: 29/01/2025 Architecture: WINDOWS Score: 100 45 www.visraft.website 2->45 47 www.svapo-discount.net 2->47 49 8 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 Multi AV Scanner detection for submitted file 2->77 79 7 other signatures 2->79 12 wscript.exe 1 16 2->12         started        signatures3 process4 dnsIp5 57 87.120.120.56, 49704, 80 UNACS-AS-BG8000BurgasBG Bulgaria 12->57 43 C:\Temp\downloaded_script.ps1, ASCII 12->43 dropped 97 System process connects to network (likely due to code injection or exploit) 12->97 99 JScript performs obfuscated calls to suspicious functions 12->99 101 Wscript starts Powershell (via cmd or directly) 12->101 103 2 other signatures 12->103 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 83 Antivirus detection for dropped file 21->83 85 Machine Learning detection for dropped file 21->85 87 Writes to foreign memory regions 21->87 89 2 other signatures 21->89 26 RegAsm.exe 21->26         started        process13 signatures14 91 Maps a DLL or memory area into another process 26->91 29 Cp18YWwBE6AYv1HiHFqj4.exe 26->29 injected process15 signatures16 93 Maps a DLL or memory area into another process 29->93 95 Found direct / indirect Syscall (likely to bypass EDR) 29->95 32 clip.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 Cp18YWwBE6AYv1HiHFqj4.exe 32->35 injected 39 firefox.exe 32->39         started        process19 dnsIp20 51 www.svapo-discount.net 81.88.63.46, 49812, 80 REGISTER-ASIT Italy 35->51 53 meritking.cloud 84.32.84.32, 49990, 49991, 49992 NTT-LT-ASLT Lithuania 35->53 55 4 other IPs or domains 35->55 81 Found direct / indirect Syscall (likely to bypass EDR) 35->81 signatures21
Score:
0%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9/
Threat name:
Script-JS.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-01-29 08:32:06 UTC
File Type:
Text (VBS)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xs3jmecyaec3dbck4kwyjsw6cdbbc7w7vp37wixdqyn6u6mjcguq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250129-kfa4wazrbr/
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
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bcb696105801/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
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
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.

Malspam

Formbook

Java Script (JS) js bcb69610580105b1844ae2ad84cade10c2117edfabf7fb22e3861bea798911a9

(this sample)

  
Delivery method
Distributed via e-mail attachment

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