MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e05106e87bc020e515701eb173b232dc3faa925ba09948756230b422b814fb08. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: e05106e87bc020e515701eb173b232dc3faa925ba09948756230b422b814fb08
SHA3-384 hash: 849554335152b36551028298fa07c241bd3e01787b16eb08ebb53617ad046e91a25efc7f5b60f7269cf3b8b3c928af97
SHA1 hash: b8e8c9e34407506b23882a43284a14ffbf839883
MD5 hash: c141c859e375a22cf1a6eda3fb100896
humanhash: carolina-uncle-hamper-nine
File name:justificante transferencia.vbs
Download: download sample
Signature GuLoader
File size:77'748 bytes
First seen:2023-10-10 11:34:03 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:CPTrAxIGM7gloqiGKfoebHj7W89C0bO1dEZDIeVMXp0XF84G:2TPp76i1ge7jCRXEelyXF84G
Threatray 510 similar samples on MalwareBazaar
TLSH T144732760D9D5263E4E871BEEBF419841C5F8896E8325815DF99E033E122386CDB3FB58
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
97
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Suspicious powershell command line found
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: 1322839 Sample: justificante_transferencia.vbs Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 28 smtp.1and1.es 2->28 30 api4.ipify.org 2->30 32 api.ipify.org 2->32 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Yara detected GuLoader 2->50 52 Yara detected AgentTesla 2->52 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 54 VBScript performs obfuscated calls to suspicious functions 9->54 56 Suspicious powershell command line found 9->56 58 Wscript starts Powershell (via cmd or directly) 9->58 60 2 other signatures 9->60 12 powershell.exe 16 9->12         started        15 cmd.exe 1 9->15         started        process6 signatures7 70 Suspicious powershell command line found 12->70 72 Very long command line found 12->72 17 powershell.exe 19 12->17         started        20 conhost.exe 12->20         started        22 conhost.exe 15->22         started        process8 signatures9 40 Writes to foreign memory regions 17->40 42 Maps a DLL or memory area into another process 17->42 44 Found suspicious powershell code related to unpacking or dynamic code loading 17->44 24 CasPol.exe 15 10 17->24         started        process10 dnsIp11 34 api4.ipify.org 64.185.227.156, 443, 49750 WEBNXUS United States 24->34 36 smtp.1and1.es 212.227.15.142, 49751, 587 ONEANDONE-ASBrauerstrasse48DE Germany 24->36 38 94.156.6.158, 49745, 49749, 80 NET1-ASBG Bulgaria 24->38 62 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->64 66 Tries to steal Mail credentials (via file / registry access) 24->66 68 Tries to harvest and steal browser information (history, passwords, etc) 24->68 signatures12
Threat name:
Script-WScript.Trojan.Guloader
Status:
Suspicious
First seen:
2023-10-10 11:35:07 UTC
File Type:
Text (VBS)
AV detection:
6 of 21 (28.57%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
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
Looks up external IP address via web service
Checks computer location settings
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.

Malspam

GuLoader

Visual Basic Script (vbs) vbs e05106e87bc020e515701eb173b232dc3faa925ba09948756230b422b814fb08

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments