MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e. 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:	a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e
SHA3-384 hash:	691f0596b6d794adbbc396ae6aed76f8ada9723b41b3143f588aabe592adbc29d675c7b1226c0a592ca97e10a9e434a3
SHA1 hash:	e39a62f0ec34becae007ba33e4ffffab42e28cfc
MD5 hash:	7478bff5bd2b60105e2ca70636b28380
humanhash:	black-oxygen-delta-ack
File name:	wr.php
Download:	download sample
File size:	27'042 bytes
First seen:	2026-08-11 15:37:50 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	768:P8vCB+25j6es8R59FYpMSUpi+20qUpi+20YQX:P8l25Jfd2QX
TLSH	T1A8C27C966A867C44BEC94A3E4CBD2B1D6DF5C3D1324942AC3D8A3C71DC11F9CD618B1A
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/z/post/noroot.php	n/a	n/a	elf ua-wget

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Linux.DownLoader.2862.9214.23731.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

evasive masquerade

Link:

https://www.filescan.io/uploads/6a7b41f5264b48f01558bc0e/reports/25fa9ba8-6bd0-4d4b-b846-5bb7710a8049/overview

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-08-11T13:41:00Z UTC

Last seen:

2026-08-11T14:08:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/012ebe41-ca94-44d8-9320-fdd85fad9737

Behavior Graph:

Download SVG

Score:

82%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e/

Threat name:

Linux.Backdoor.WebShell

Status:

Malicious

First seen:

2026-08-11 15:38:33 UTC

File Type:

Text (Shell)

AV detection:

16 of 36 (44.44%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=up7vgwm72gyl4uokrxz52oq6wzt6fx6uwyxkjag3xurkfuhf7uxa._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery linux

Link:

https://tria.ge/reports/260811-s2944afa93/

Behaviour

Reads runtime system information

Writes file to tmp directory

Deobfuscate/Decode Files or Information

Checks CPU configuration

File and Directory Permissions Modification

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

Threat name:

Legit

Score:

0.16

Link:

https://yomi.yoroi.company/submissions/a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e

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

File information

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

Web download

sh a3ff53599fd1b0be51ca8df3dd3a1eb667e2dfd4b62ea480dbbd22a2d0e5fd2e

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3884409/

Delivery method

Distributed via web download

Comments

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