MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a. 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:	81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a
SHA3-384 hash:	74d60f4ef29d7c5a707cf0b0be8b8c285bd620e680afadd9ed335877a6db99411b607446238fae5d9f17de15f9e3761e
SHA1 hash:	65ba2f7e0668f723b0f50f55900499a6308c8b6f
MD5 hash:	1d7e169c57f1ae6fd467a8cd02d7be6a
humanhash:	bravo-helium-berlin-hamper
File name:	wr.php
Download:	download sample
File size:	27'042 bytes
First seen:	2026-08-04 08:05:20 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	768:T8vCB+25j6es8RZ9FYpMSUpi+20qUpi+20YQX:T8l25J/d2QX
TLSH	T1F5C27C956A867C44BDC98A3E4CBD2B0D6DF5C3E1324942AC3D8B3C719C15F9CD618B1A
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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

evasive masquerade

Link:

https://www.filescan.io/uploads/6a719ee764f11866e09e0897/reports/54c473f4-890f-4b05-b84f-01d538f0f14b/overview

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-08-04T06:17:00Z UTC

Last seen:

2026-08-05T01:34:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/dee2f892-82d1-4cbe-8c06-4761d116cdaf

Behavior Graph:

Download SVG

Score:

81%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a/

Threat name:

Linux.Backdoor.WebShell

Status:

Malicious

First seen:

2026-08-04 09:02:23 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=qhlx2g572ueer3zownivos4v627dcsrlhuiiqx2vcqawnpvrdnva._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery linux

Link:

https://tria.ge/reports/260804-jy3q6szwcy/

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/81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a

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 81d77d1bbfd50848ef2eb351574b95f6be314a2b3d10885f55140166beb11b6a

(this sample)

URLhaus

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

Delivery method

Distributed via web download

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