MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aab25b636f9de1565af12c7d0468be4dc26ea80c09e130fd9f443d714747b60f. 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: 7


Intelligence 7 IOCs YARA File information Comments

SHA256 hash: aab25b636f9de1565af12c7d0468be4dc26ea80c09e130fd9f443d714747b60f
SHA3-384 hash: 5ae88355cbc0f4925f549e29d6da4da9bb693e6883beb33943d20561c119afab05bad87b2ef1898146b05a731f4e5961
SHA1 hash: 787237533806971f5115e9bf1b07201ddae4f641
MD5 hash: a3f29ece5c676b1a6ea51707a2f4083a
humanhash: ink-ink-crazy-cup
File name:Pedido de cotação -Lista de materiais.vbs
Download: download sample
Signature GuLoader
File size:91'640 bytes
First seen:2024-01-10 09:46:04 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:J9fGddPhRcbIybBrPu6eXYSXQjbrDqHESoRgsXJkGn6OO7K:rfg5j4IArWVoSAjnGHESoRgUJkg6OO7K
TLSH T10593F720CAC516390E7E07BAAF014C01F4BB843D4235A8FFE599376E13A295C977B679
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
125
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
spre.troj.spyw.expl.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
Powershell uses Background Intelligent Transfer Service (BITS)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
Suspicious execution chain found
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 AntiVM3
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1372302 Sample: Pedido_de_cota#U00e7#U00e3o... Startdate: 10/01/2024 Architecture: WINDOWS Score: 100 31 mail.inkomech.com 2->31 33 googlehosted.l.googleusercontent.com 2->33 35 6 other IPs or domains 2->35 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 Yara detected GuLoader 2->61 63 3 other signatures 2->63 9 wscript.exe 1 2->9         started        12 svchost.exe 1 2 2->12         started        signatures3 process4 dnsIp5 65 VBScript performs obfuscated calls to suspicious functions 9->65 67 Suspicious powershell command line found 9->67 69 Wscript starts Powershell (via cmd or directly) 9->69 71 3 other signatures 9->71 15 powershell.exe 16 9->15         started        43 drive.google.com 172.253.115.101, 443, 49735, 49737 GOOGLEUS United States 12->43 45 googlehosted.l.googleusercontent.com 172.253.115.132, 443, 49736, 49746 GOOGLEUS United States 12->45 47 2 other IPs or domains 12->47 signatures6 process7 signatures8 81 Suspicious powershell command line found 15->81 83 Very long command line found 15->83 18 powershell.exe 19 15->18         started        21 conhost.exe 15->21         started        23 cmd.exe 1 15->23         started        process9 signatures10 49 Writes to foreign memory regions 18->49 51 Powershell uses Background Intelligent Transfer Service (BITS) 18->51 53 Maps a DLL or memory area into another process 18->53 55 Found suspicious powershell code related to unpacking or dynamic code loading 18->55 25 MSBuild.exe 15 8 18->25         started        29 cmd.exe 1 18->29         started        process11 dnsIp12 37 mail.inkomech.com 103.6.196.109, 49753, 49757, 49760 EXABYTES-AS-APExaBytesNetworkSdnBhdMY Malaysia 25->37 39 api4.ipify.org 104.237.62.212, 443, 49751 WEBNXUS United States 25->39 41 142.251.16.132, 443, 49750 GOOGLEUS United States 25->41 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->73 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 25->75 77 Tries to steal Mail credentials (via file / registry access) 25->77 79 Tries to harvest and steal browser information (history, passwords, etc) 25->79 signatures13
Verdict:
unknown
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger spyware stealer trojan
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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.

Malspam

GuLoader

Visual Basic Script (vbs) vbs aab25b636f9de1565af12c7d0468be4dc26ea80c09e130fd9f443d714747b60f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments