MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fae3f9e1c610097417ce7aa81207f2fea0538a5688c8e2ddf3b3b50172a7fe43. 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: 6


Intelligence 6 IOCs YARA 2 File information Comments

SHA256 hash: fae3f9e1c610097417ce7aa81207f2fea0538a5688c8e2ddf3b3b50172a7fe43
SHA3-384 hash: 16738c027cd00e226a765dfff0d43f6de0e9c3ca245d119fb43629526462455ed2ffb70508aca0eda2f029e1892d5b4d
SHA1 hash: 4b93cc5cbd08d5f0079fbcf421bc4a2de3f781fb
MD5 hash: 5f9517ce186a493d8d36b14e54dcbd4d
humanhash: oxygen-batman-friend-nineteen
File name:Nonalphabetical.vbs
Download: download sample
Signature GuLoader
File size:254'959 bytes
First seen:2022-11-10 12:32:24 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 6144:vDnJrCtCztIBDC9TeLqzeYPoC+IK2BE+k4:vDxjzwCpE7CpK2BEq
TLSH T11644C0A1BD042B12CA6D7AAF88F77D49C97D8EC6DD21C45E1EB1270ACA12C44A51F70F
Reporter abuse_ch
Tags:GuLoader vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm evasive
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
expl.evad.troj.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Obfuscated command line found
Potential malicious VBS script found (suspicious strings)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Dot net compiler compiles file from suspicious location
Tries to detect Any.run
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 743085 Sample: Nonalphabetical.vbs Startdate: 10/11/2022 Architecture: WINDOWS Score: 100 47 onedrive.live.com 2->47 49 mail.focuzpartsmart.com 2->49 51 2 other IPs or domains 2->51 57 Multi AV Scanner detection for domain / URL 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 5 other signatures 2->63 9 wscript.exe 1 1 2->9         started        12 Bdklz.exe 2 2->12         started        14 Bdklz.exe 1 2->14         started        signatures3 process4 signatures5 65 Wscript starts Powershell (via cmd or directly) 9->65 67 Obfuscated command line found 9->67 69 Very long command line found 9->69 16 powershell.exe 25 9->16         started        20 cmd.exe 1 9->20         started        22 conhost.exe 12->22         started        24 conhost.exe 14->24         started        process6 file7 41 C:\Users\user\AppData\...\g23ynkae.cmdline, Unicode 16->41 dropped 55 Tries to detect Any.run 16->55 26 CasPol.exe 2 13 16->26         started        31 CasPol.exe 16->31         started        33 csc.exe 3 16->33         started        37 3 other processes 16->37 35 conhost.exe 20->35         started        signatures8 process9 dnsIp10 53 mail.focuzpartsmart.com 162.240.214.202, 26, 49885 UNIFIEDLAYER-AS-1US United States 26->53 43 C:\Users\user\AppData\Roaming\...\Bdklz.exe, PE32 26->43 dropped 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->71 73 Tries to steal Mail credentials (via file / registry access) 26->73 75 Tries to harvest and steal ftp login credentials 26->75 81 3 other signatures 26->81 77 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 31->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 31->79 45 C:\Users\user\AppData\Local\...\g23ynkae.dll, PE32 33->45 dropped 39 cvtres.exe 1 33->39         started        file11 signatures12 process13
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
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:Guloader_VBScript
Author:Ankit Anubhav - ankitanubhav.info
Description:Detects GuLoader/CloudEye VBScripts
Rule name:WScript_Shell_PowerShell_Combo_RID32E7
Author:Florian Roth
Description:Detects malware from Middle Eastern campaign reported by Talos
Reference:http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html

File information


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

Comments