MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d42cc862ab4fb764a7a376e528a6373d2f939353d8ea223f2b1e1abd28c5cc84. 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: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: d42cc862ab4fb764a7a376e528a6373d2f939353d8ea223f2b1e1abd28c5cc84
SHA3-384 hash: 4529fc1c111e3791b932f9bc9b6956c265f12e0b3c0164b84bcdf424bb50ea86aeb859f603317579dc0c9e6a33d5a8b6
SHA1 hash: 6833037b9797df4559a9b2a48e163fee053999e1
MD5 hash: eed4d42cda07915aa1f8f8740b9787b8
humanhash: ink-beer-georgia-earth
File name:ALBARAN 10.10.2023.vbs
Download: download sample
Signature GuLoader
File size:437'388 bytes
First seen:2023-10-10 11:26:58 UTC
Last seen:2023-10-10 13:15:22 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 6144:vmje83U/k+O1AhMIfSzJr01kVcMGHjTANOih6uFRj+c2vR8CNdLg/tv7ifF8D:8etkN1udCVOH3WRGqiG
Threatray 504 similar samples on MalwareBazaar
TLSH T159945CB1EF98151A0C4B37EAEC414C85C5BDC1695927006AFEDD17CEA10B59CA3BEB0E
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence


File Origin
# of uploads :
2
# of downloads :
98
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found suspicious powershell code related to unpacking or dynamic code loading
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
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
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: 1322815 Sample: ALBARAN_10.10.2023.vbs Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 24 bramsec.pl 2->24 26 mail.bramsec.pl 2->26 28 5 other IPs or domains 2->28 36 Snort IDS alert for network traffic 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected GuLoader 2->40 42 Yara detected AgentTesla 2->42 9 wscript.exe 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 2 other signatures 9->58 12 powershell.exe 16 9->12         started        process6 signatures7 60 Suspicious powershell command line found 12->60 62 Obfuscated command line found 12->62 64 Very long command line found 12->64 15 powershell.exe 23 12->15         started        18 conhost.exe 12->18         started        process8 signatures9 66 Writes to foreign memory regions 15->66 68 Maps a DLL or memory area into another process 15->68 70 Found suspicious powershell code related to unpacking or dynamic code loading 15->70 20 CasPol.exe 15 10 15->20         started        process10 dnsIp11 30 bramsec.pl 128.204.218.95, 49724, 587 ECO-ATMAN-PLECO-ATMAN-PL Poland 20->30 32 api4.ipify.org 104.237.62.212, 443, 49723 WEBNXUS United States 20->32 34 2 other IPs or domains 20->34 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->46 48 Tries to steal Mail credentials (via file / registry access) 20->48 50 Tries to harvest and steal browser information (history, passwords, etc) 20->50 signatures12
Threat name:
Win32.Dropper.Generic
Status:
Suspicious
First seen:
2023-10-10 11:27:13 UTC
File Type:
Text (VBS)
AV detection:
1 of 38 (2.63%)
Threat level:
  3/5
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
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Blocklisted process makes network request
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 d42cc862ab4fb764a7a376e528a6373d2f939353d8ea223f2b1e1abd28c5cc84

(this sample)

  
Delivery method
Distributed via e-mail attachment

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