MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 dcc73a1351b6b79d48f7b42a96edfb142ffe46f896e1ab9f412a615b1edd7c9b. 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
| SHA256 hash: | dcc73a1351b6b79d48f7b42a96edfb142ffe46f896e1ab9f412a615b1edd7c9b |
|---|---|
| SHA3-384 hash: | 8bfd8ae629cdb51f11fe9022dd7887a0e2d9da0dbb82d0c55be9a25875c0e190bf8f0902c1a38f41f5e83c0d95e9bfed |
| SHA1 hash: | 9c50c26e8b2f9c9acfa3192385df88d3144f351c |
| MD5 hash: | d693624e3d9614a0dc9cf5a5cd1bb8ef |
| humanhash: | zulu-quebec-connecticut-lake |
| File name: | Remittance Information (MT-103).vbs |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 82'341 bytes |
| First seen: | 2022-01-24 14:37:35 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 1536:bfNRWSaRCjFp9onPdFAgTx00Y2uUaGA4MGymjgeIFJH4t:j/HlE5oYyEI3H4t |
| Threatray | 14'020 similar samples on MalwareBazaar |
| TLSH | T1DB831DA4DA19B4CC49F5AD8382061B7A32B8C41107607D6FFD9295F75B32BDB8B1EC24 |
| Reporter |  James_inthe_box |
| Tags: | GuLoader vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
368
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
FormBook GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Encrypted powershell cmdline option found
Found malware configuration
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Potential evasive VBS script found (sleep loop)
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Accessing WinAPI in PowerShell. Code Injection.
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Remote Thread Created
Sigma detected: Suspicious Svchost Process
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, 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 FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Script-WScript.Trojan.Powload
Status:
Malicious
First seen:
2022-01-24 07:51:03 UTC
File Type:
Text (VBS)
AV detection:
14 of 28 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 14'010 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:formbook family:guloader campaign:k6sm downloader persistence rat spyware stealer suricata trojan
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Adds policy Run key to start application
Formbook Payload
Formbook
Guloader,Cloudeye
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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