MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 977965787ace76ed2ef7b9d8923958c46ceaefa46ec09ad2436f4b22b1b42513. 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



GuLoader


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: 977965787ace76ed2ef7b9d8923958c46ceaefa46ec09ad2436f4b22b1b42513
SHA3-384 hash: c5821ab7ed2d7ca7c74200087d4c25c86dd55d39b531261150651bcc7b840c8eca9ab05a85c1f1e6560cce1d1777c851
SHA1 hash: 131ffe41766faa1d9f7e54838f3419cd08480c1f
MD5 hash: a22712d23b2775c205038a1ac865442a
humanhash: tennis-mobile-comet-lamp
File name:FACTURAS PENDIENTES.vbs
Download: download sample
Signature GuLoader
File size:38'593 bytes
First seen:2024-03-27 06:58:10 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 768:u0bgBGhARWAZGc8NnKwiQREsqf+KhjMFpd:AMAjqNnKw5UnJMFv
Threatray 174 similar samples on MalwareBazaar
TLSH T1EC030BD2D9892BD44A469BF3DC223B334DB4484977330A7A97BBC24D60439588DBFAC5
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
112
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade powershell
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell uses Background Intelligent Transfer Service (BITS)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, 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 GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1416261 Sample: FACTURAS PENDIENTES.vbs Startdate: 27/03/2024 Architecture: WINDOWS Score: 100 31 mail.ardsmmm.com 2->31 33 ip-api.com 2->33 35 2 other IPs or domains 2->35 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 7 other signatures 2->61 9 wscript.exe 1 2->9         started        12 svchost.exe 1 1 2->12         started        signatures3 process4 dnsIp5 63 VBScript performs obfuscated calls to suspicious functions 9->63 65 Suspicious powershell command line found 9->65 67 Wscript starts Powershell (via cmd or directly) 9->67 69 4 other signatures 9->69 15 powershell.exe 24 9->15         started        41 drive.usercontent.google.com 142.251.16.132, 443, 49709, 49711 GOOGLEUS United States 12->41 43 drive.google.com 142.251.167.139, 443, 49708, 49710 GOOGLEUS United States 12->43 45 127.0.0.1 unknown unknown 12->45 signatures6 process7 signatures8 79 Suspicious powershell command line found 15->79 81 Obfuscated command line found 15->81 83 Very long command line found 15->83 85 2 other signatures 15->85 18 powershell.exe 20 15->18         started        21 conhost.exe 15->21         started        23 cmd.exe 1 15->23         started        process9 signatures10 47 Obfuscated command line found 18->47 49 Writes to foreign memory regions 18->49 51 Found suspicious powershell code related to unpacking or dynamic code loading 18->51 53 Hides threads from debuggers 18->53 25 wab.exe 15 8 18->25         started        29 cmd.exe 1 18->29         started        process11 dnsIp12 37 ip-api.com 208.95.112.1, 49721, 80 TUT-ASUS United States 25->37 39 mail.ardsmmm.com 99.83.175.80, 587 AMAZON-02US United States 25->39 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->71 73 Tries to steal Mail credentials (via file / registry access) 25->73 75 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 25->75 77 2 other signatures 25->77 signatures13
Threat name:
Script-WScript.Trojan.GuLoader
Status:
Malicious
First seen:
2024-03-26 13:21:40 UTC
File Type:
Text (VBS)
AV detection:
7 of 22 (31.82%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Guloader,Cloudeye
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments