MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5403448598de334b4a94ed9ab9e14a9e22160753a73ae98fa81b9172a385414. 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


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5403448598de334b4a94ed9ab9e14a9e22160753a73ae98fa81b9172a385414
SHA3-384 hash: 6ffc0fa48f1bd09ac8f99c992a3726ab87b0e594732405c3d1cd6ef8c40041fcda6ec809aff3a66be3379b642c42bbde
SHA1 hash: 3c05a31b00ebdce2c5bc5dfc150672928b9131fa
MD5 hash: e0c6b90b6436e492baa904698e281527
humanhash: mike-alanine-oven-may
File name:firefox.lnk
Download: download sample
File size:3'334 bytes
First seen:2023-01-21 00:12:32 UTC
Last seen:2023-01-26 23:37:34 UTC
File type:Shortcut (lnk) lnk
MIME type:application/octet-stream
ssdeep 48:8P5aZMyW+6IZERNRhZ3aKr0MyKZBy9rwLIlxabR+:8P5AMyPJZERNRf3d0NKZB+A8
TLSH T1A36135506FCB421EF9F26A3AC5EE3257507AB9C5AD29CA4A0058431950F3804E4F7F37
Reporter cyb3rops
Tags:lnk obfuscated powershell

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malicious
File Type:
LNK File - Malicious
Link:
https://app.docguard.net/b5403448598de334b4a94ed9ab9e14a9e22160753a73ae98fa81b9172a385414/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/63cb2e0e96add6d1cf47f3a5/reports/cc30e6fe-4490-47af-829b-b3c53a66eb95/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155992
Signature
.NET source code references suspicious native API functions
Compiles code for process injection (via .Net compiler)
Malicious sample detected (through community Yara rule)
Sigma detected: Dot net compiler compiles file from suspicious location
Snort IDS alert for network traffic
Windows shortcut file (LNK) starts blacklisted processes
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5403448598de334b4a94ed9ab9e14a9e22160753a73ae98fa81b9172a385414/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvadisczrxrtjnfjj3m2xhquvhrccydvhjz25gh2qg4rokrykqka._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230121-ahq8rsca5y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b5403448598de334b4a94ed9ab9e14a9e22160753a73ae98fa81b9172a385414

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:EXE_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies executable artefacts in shortcut (LNK) files.
Rule name:PS_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies PowerShell artefacts in shortcut (LNK) files.
Rule name:SUSP_LNK_PowerShell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference to powershell inside an lnk file, which is suspicious

File information

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

Comments