MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11. 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: 6

Intelligence 6 IOCs YARA 1 File information Comments

SHA256 hash:	40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11
SHA3-384 hash:	2c6b3b2be930ef6d96fa874aa844dec6dc75ad9231228b22c13c5fc02ef6014421974d6cc3ba869ba40e5ad8538f7570
SHA1 hash:	1d722da28d7f50dc77e0b8db0ce6fa17f9cd0658
MD5 hash:	245084f7558c69db4359d2b4052c7187
humanhash:	wisconsin-ack-mexico-nebraska
File name:	k.php
Download:	download sample
File size:	50'374 bytes
First seen:	2026-07-12 08:38:36 UTC
Last seen:	2026-07-12 18:39:00 UTC
File type:	sh
MIME type:	text/x-shellscript
ssdeep	768:3r9NyXsZztCb9GKYpr9GKYp82fkR4nnA9GKYpr9GKYp82fkR4nnB:bHusZVcK
TLSH	T167336D6516857C14AA99C8365D7F2F0CBCAD43E6314492DE7FCA3CF28C4AA9CA21971C
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.759-2.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

base64 bash evasive lolbin masquerade obfuscated

Link:

https://www.filescan.io/uploads/6a5352c3f02b327c5a80c4aa/reports/02aa9c4a-1091-4a09-8ee7-0d0d159808af/overview

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-07-12T05:52:00Z UTC

Last seen:

2026-07-12T07:37:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Downloader.Shell.Agent.bc HEUR:Backdoor.PHP.Generic

Link:

https://opentip.kaspersky.com/40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/45dbdcea-0c41-4aed-baf1-bbadffabcd88

Score:

93%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11/

Threat name:

Linux.Trojan.Vigorf

Status:

Malicious

First seen:

2026-07-12 08:39:41 UTC

File Type:

Text (Shell)

AV detection:

16 of 38 (42.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ibiz4xmokwvfx57l77khfuczzsijwd3id6qhyjyhgxbmzqdxbuiq._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/260712-kkj8cagy71/

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:

Legit

Score:

0.19

Link:

https://yomi.yoroi.company/submissions/40519e5d8e55aa5bf7ebffd472d059cc909b0f681fa07c270735c2ccc0770d11

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