MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e83d59073cf33eccb1e9fdc37316b45724fe15b873f3e9147e27308f6de60437. 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 8 File information Comments

SHA256 hash: e83d59073cf33eccb1e9fdc37316b45724fe15b873f3e9147e27308f6de60437
SHA3-384 hash: 3d865ab41449f0d15923e3ea744ccdb65d0ce95c6045c067297ca10ba32502e0a70eddb9ff005667d6c427efa4134fba
SHA1 hash: e4766149a71a6cbda15e5004bddb8869e7abcca0
MD5 hash: f8395993fce1276dc8a469ab52d18f31
humanhash: queen-timing-artist-hot
File name:2025-02-10.vbs
Download: download sample
Signature Formbook
File size:2'090 bytes
First seen:2025-02-10 18:59:06 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 24:/ZkRCEYHAAureNPaVRSzWf74thSXsspEOToP+RDGjpQp/+YM5/ij1LMGXk/eE4DS:/zAAfzWyS8spEoLEpK/jk/0LMGU/eE4W
TLSH T1BC41441FB903B234C03BC9AD4C4FE41DD9B40283941A4960F95C86961F392BDF59D69A
Magika vba
Reporter abuse_ch
Tags:FormBook vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
96
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
trojan shell hype
Result
Verdict:
UNKNOWN
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
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
Joe Sandbox ML detected suspicious sample
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
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)
VBScript performs obfuscated calls to suspicious functions
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1611351 Sample: 2025-02-10.vbs Startdate: 10/02/2025 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 6 other signatures 2->81 12 wscript.exe 16 2->12         started        signatures3 79 Performs DNS queries to domains with low reputation 47->79 process4 dnsIp5 57 87.120.120.56, 49731, 80 UNACS-AS-BG8000BurgasBG Bulgaria 12->57 43 C:\Temp\JSDSDGSD.ps1, ASCII 12->43 dropped 99 System process connects to network (likely due to code injection or exploit) 12->99 101 VBScript 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 L6mXGXulYQtoJ2eP.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 L6mXGXulYQtoJ2eP.exe 32->35 injected 39 firefox.exe 32->39         started        process19 dnsIp20 51 031234440.xyz 144.76.229.203, 49756, 49769, 49784 HETZNER-ASDE Germany 35->51 53 www.fz977.xyz 104.21.48.1, 50025, 50026, 80 CLOUDFLARENETUS United States 35->53 55 5 other IPs or domains 35->55 83 Found direct / indirect Syscall (likely to bypass EDR) 35->83 signatures21
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2025-02-10 13:01:28 UTC
File Type:
Text (VBS)
AV detection:
4 of 38 (10.53%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
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.

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:detect_tiny_vbs
Author:daniyyell
Description:Detects tiny VBS delivery technique
Rule name:js_formbook
Author:dubfib
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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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