MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e76b1a4f9aa3787900758ce81367f40587ca3d6a3a7ab6d1d02537e12cb10c37. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e76b1a4f9aa3787900758ce81367f40587ca3d6a3a7ab6d1d02537e12cb10c37
SHA3-384 hash: 9708f86ada878e3065a667274682c821432fedd1cc01ec0bf62ffc352a8d34adcd62a9ba713022672f4987464bef21bc
SHA1 hash: 74e41c42eb5b04c532567d9244c969f4895ee3ca
MD5 hash: 7faf86b2e1bb45a26367227c777dc668
humanhash: triple-mountain-eleven-maryland
File name:file673736 241-22 01.02.22.vbs
Download: download sample
Signature GuLoader
Create hunting rule
File size:169'680 bytes
First seen:2022-02-09 14:58:33 UTC
Last seen:2022-02-09 15:04:24 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:QMaEkxBHovrl86H0px6XKsI47GqTOd/c2Y6FSuWxmHht+kl47x9oYQobFfjyKq6J:QcUArC6ULM1Od0d0ht+Rik+tJar
Threatray 16'545 similar samples on MalwareBazaar
TLSH T185F3E564BCE6AB62CB3039A34CCA3F4AC1D5F4219FE8640B5925A41F6FDD168671F24C
Reporter James_inthe_box
Tags:GuLoader vbs

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/239634/
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive powershell
Link:
https://www.filescan.io/uploads/6203d6bfc79b424d720b3dab/reports/844693bf-8b6a-4811-a7e0-e850e004f80b/overview
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Malicious Scriptlet 2 of 7
Detected a malicious pivot typically seen during the 'file-less' pivot commonly seen in malware carriers.
Result
Threat name:
FormBook GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/936950
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e76b1a4f9aa3787900758ce81367f40587ca3d6a3a7ab6d1d02537e12cb10c37/
Threat name:
Script-WScript.Downloader.SLoad
Create hunting rule
Status:
Malicious
First seen:
2022-02-09 14:58:33 UTC
File Type:
Text (VBS)
AV detection:
8 of 27 (29.63%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=45vrut42un4hsadvrtubgz7uawd4uplkhj5lnuoqeu36clfrbq3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856
GuLoader
6f2d71733b4bcab1a04a40168f2900963a9f65c0081a6f1d1832d18b6bae16bb
GuLoader
7b73a6d63c4835022e71c1630ae42dbeaadc566532b1b85757b385246e19fcbe
GuLoader
87cca4e4ba65094241bbb379ca3677932f6e399ece811334a07a72ff5b3073f8
GuLoader
8c16cbf4df8137db774d2cb97cc386b052ca7a0b77ee1572fe7a5fc9a5a22ae0
GuLoader
d0ce91945a10abde8e7569759e78430c80fb8fa42589dfaccf565cf6895f8846
GuLoader
d5f77ba2b2ad58cfad5ae3111994ad0f889967e6d4f67ecb9cedf1b8f10a6149
GuLoader
f61f02c5be2ef5988f474ffc148b099942ab8582cd4aac8b3c991436f6230592
GuLoader
+ 16'535 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:k6sm downloader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220209-scp3maahbn/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Checks computer location settings
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Guloader,Cloudeye
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e76b1a4f9aa3/report/overview.html
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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/239634/

Comments