MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58da840c8d43fab7fb57d81db6e70e43604eeb7b131a17de655e9e0d660b6b2d. 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



AgentTesla


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: 58da840c8d43fab7fb57d81db6e70e43604eeb7b131a17de655e9e0d660b6b2d
SHA3-384 hash: 657700da6276ea0e7cc020b8c0f31de97d1e841ddbd9825efa60cf02b967e20c9b60fc48f7ce38d108464af2f9bb9b79
SHA1 hash: 6f74309cb032a35ee8989591e272005efbc0d1b7
MD5 hash: 254ace531f797da77e451ea20e8dbd68
humanhash: michigan-lake-low-march
File name:PO No. 60834724.vbs
Download: download sample
Signature AgentTesla
File size:253'812 bytes
First seen:2023-10-27 15:54:46 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 3072:bqRe1Yebqe1Y5ULFe1Yxe1YHa1e1YnwMf6Pfp:1vXZoLCF
Threatray 933 similar samples on MalwareBazaar
TLSH T1EE442D6135EF604875777FA31FDC79AA4F6FB7B26A1A906D2040071ACB52E40CDE1A32
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter abuse_ch
Tags:AgentTesla vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
111
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
86%
Tags:
fingerprint lolbin netsh powershell stealer
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, zgRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses process hollowing technique
Sample uses string decryption to hide its real strings
Sigma detected: Powershell download and load assembly
Suspicious powershell command line found
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
Very long command line found
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 AgentTesla
Yara detected Generic Downloader
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1333416 Sample: PO_No._60834724.vbs Startdate: 27/10/2023 Architecture: WINDOWS Score: 100 26 uploaddeimagens.com.br 2->26 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 7 other signatures 2->44 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 52 VBScript performs obfuscated calls to suspicious functions 9->52 54 Suspicious powershell command line found 9->54 56 Wscript starts Powershell (via cmd or directly) 9->56 58 3 other signatures 9->58 12 powershell.exe 7 9->12         started        process6 signatures7 60 Suspicious powershell command line found 12->60 62 Found suspicious powershell code related to unpacking or dynamic code loading 12->62 15 powershell.exe 14 14 12->15         started        19 conhost.exe 12->19         started        process8 dnsIp9 28 uploaddeimagens.com.br 172.67.215.45, 443, 49701 CLOUDFLARENETUS United States 15->28 30 185.254.37.174, 49702, 80 NETERRA-ASBG Germany 15->30 32 Writes to foreign memory regions 15->32 34 Sample uses process hollowing technique 15->34 36 Injects a PE file into a foreign processes 15->36 21 RegAsm.exe 2 15->21         started        24 RegAsm.exe 15->24         started        signatures10 process11 signatures12 46 Tries to steal Mail credentials (via file / registry access) 21->46 48 Tries to harvest and steal browser information (history, passwords, etc) 21->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->50
Threat name:
Script-WScript.Downloader.Nemucod
Status:
Malicious
First seen:
2023-10-25 19:26:07 UTC
File Type:
Text (VBS)
AV detection:
9 of 38 (23.68%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:zgrat rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Detect ZGRat V1
ZGRat
Malware Config
Dropper Extraction:
https://uploaddeimagens.com.br/images/004/644/749/original/new_image.jpg?1698084523
Malware family:
AgentTesla.v4
Verdict:
Malicious
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:SUSP_VBS_Wscript_Shell
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon

File information


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

Malspam

AgentTesla

Visual Basic Script (vbs) vbs 58da840c8d43fab7fb57d81db6e70e43604eeb7b131a17de655e9e0d660b6b2d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments