MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5. 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:	cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5
SHA3-384 hash:	8bee2ed188a537b98d1effb7b99f3063bd06ab212720be4fb4db06f6f8b0c88132fe5697b3466d7211b6e123a108adb5
SHA1 hash:	3ff7a243cf158398fcb4abeee849d9d8b15f75af
MD5 hash:	932a304eb9d78fd05615a78da06aa299
humanhash:	mike-nitrogen-cup-papa
File name:	wr.php
Download:	download sample
File size:	27'042 bytes
First seen:	2026-08-05 19:48:51 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	768:i8vCB+25j6es8Rk9FYpMSUpi+20qUpi+20YQX:i8l25JCd2QX
TLSH	T16AC27D966A867C44BEC94A3E4CBD2B1D6DF5C3D1324A42AC3D8A3C71DC11F9CD618B1A
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.2862.8818.170.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

evasive masquerade

Link:

https://www.filescan.io/uploads/6a7393c4e4f1677d5a933203/reports/264f3656-e57a-47a2-9e67-0969f3b0b007/overview

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-08-05T16:55:00Z UTC

Last seen:

2026-08-05T19:13:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Downloader.Shell.Agent.bc HEUR:Backdoor.PHP.WebShell.gen Backdoor.Shell.Agent.z

Link:

https://opentip.kaspersky.com/cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/9ec186b7-6210-41cf-99df-9d978b9e7fe5

Behavior Graph:

Download SVG

Score:

82%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5/

Threat name:

Linux.Backdoor.WebShell

Status:

Malicious

First seen:

2026-08-05 19:49:34 UTC

File Type:

Text (Shell)

AV detection:

12 of 24 (50.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z7zdi6ppu42yptoc54ivutuq5dueq7r6wteoivtpg2vwa34hctcq._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery linux

Link:

https://tria.ge/reports/260805-yjvjksfj4v/

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/cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5

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 cff23479efa73587cdc2ef115a4e90e8e8487e3eb4c8e4566f36ab606f8714c5

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3884408/

Delivery method

Distributed via web download

Comments

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