MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b. 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 1 File information Comments

SHA256 hash:	66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b
SHA3-384 hash:	5332e37cb775afd86dca658bd94692a0ced603b2baca5406b7d90fe97e8a070bf2becf7926803c4b1f24d9a8edcd02d7
SHA1 hash:	26543d9adb5418920259449a32859d04938d1e47
MD5 hash:	253c4c2aaccfad760ee3fd925ab95ce6
humanhash:	three-oxygen-tennis-hydrogen
File name:	k.php
Download:	download sample
File size:	45'509 bytes
First seen:	2026-06-26 06:41:18 UTC
Last seen:	2026-06-26 20:52:36 UTC
File type:	sh
MIME type:	text/x-shellscript
ssdeep	768:Kr9NyXsZztCN9GKYpr9GKYp82fkR4nnA9GKYpr9GKYp82fkR4nnx:0HusZvco
TLSH	T16E136C6526953C25AE99883B5C7E2F0CBDA983E2304491DDBF8B3CF18C15A9CE718719
TrID	70.0% (.SH) Linux/UNIX shell script (7000/1) 30.0% (.) Unix-like shebang (var.3) (gen) (3000/1)
Magika	shell
Reporter	abuse_ch
Tags:	sh

Shell script dropper

This file seems to be a shell script dropper, using wget, ftpget and/or curl. More information about the corresponding payload URLs are shown below.

URL	Malware sample (SHA256 hash)	Signature	Tags
http://160.119.69.4/x	n/a	n/a	160-119-69-4 sh ua-wget

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Linux.BackDoor.Siggen.759.20705.30543.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

base64 bash evasive lolbin masquerade obfuscated

Link:

https://www.filescan.io/uploads/6a3e1f18f7ce7c4af8d51ead/reports/d760bcb1-fa36-4202-a4b3-fba59e32fbf2/overview

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-06-26T03:52:00Z UTC

Last seen:

2026-06-27T20:09:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Downloader.Shell.Agent.bc

Link:

https://opentip.kaspersky.com/66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/24bd1bb4-9f5a-4f83-b57d-c327cce5b495

Score:

94%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b/

Verdict:

Malicious

Threat:

Trojan-Downloader.Shell.Agent

Link:

https://tip.neiki.dev/file/66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b

Threat name:

Linux.Trojan.Vigorf

Status:

Malicious

First seen:

2026-06-26 06:42:41 UTC

File Type:

Text (Shell)

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=m2td7e5t44smh7krt3573suo3k5dqx4v637tfl4rmkbi2y7cq2nq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

antivm credential_access defense_evasion discovery execution linux persistence privilege_escalation

Link:

https://tria.ge/reports/260626-l96y3sbs7r/

Behaviour

Enumerates kernel/hardware configuration

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Deobfuscate/Decode Files or Information

Checks CPU configuration

Creates .desktop file

Modifies Bash startup script

Adds a user to the system

Creates/modifies Cron job

Creates/modifies environment variables

Deletes log files

Enumerates running processes

Modifies rc script

File and Directory Permissions Modification

Deletes Audit logs

Deletes system logs

OS Credential Dumping

Modifies password files for system users/ groups

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.36

Link:

https://yomi.yoroi.company/submissions/66a63f93b3e724c3fd519efbfdca8edaba385f95f6ff32af9162828d63e2869b

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:	SUSP_LNX_Base64_Exec_Apr24 Create hunting rule
Author:	Christian Burkard
Description:	Detects suspicious base64 encoded shell commands (as seen in Palo Alto CVE-2024-3400 exploitation)
Reference:	Internal Research