MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28fa4489e716e5c7928271d86ce8d20593f90c44d6ceac01b16f1edbcaf89a36. 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

Mirai

Vendor detections: 6

Intelligence 6 IOCs YARA 3 File information Comments

SHA256 hash:	28fa4489e716e5c7928271d86ce8d20593f90c44d6ceac01b16f1edbcaf89a36
SHA3-384 hash:	579bbec5660a0859781bec8fa74ed239be577e2530fcef5fa499de8750cbaef3136ad2ce6ab371597131eef700d5865a
SHA1 hash:	880d1bed168a44b094ab52592c6457dde7e5c40c
MD5 hash:	1df54ddb72ad15d173d5dea89335ac20
humanhash:	social-vegan-nebraska-maryland
File name:	mipsel
Download:	download sample
Signature	Mirai Create hunting rule
File size:	149'728 bytes
First seen:	2026-09-02 17:46:34 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:iEv0oEdx4Mov30PgyOz3OtyQ1AKxVLY9SXAEqwpujvHRKDdfwi2ZIM5UqZ1fkU1:i4MY3/rOty6VL8wUbxKpI8M5JZP1
TLSH	T1A6E313DA8F1C449BC7BC007BE27D227169CDF884C656264952794E85FB72113ACEC1AE
Magika	elf
Reporter	BlinkzSec
Tags:	UPX

UPX packed

This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.

File size (compressed) :	149'728 bytes
File size (de-compressed) :	469'288 bytes
Format:	linux/mipsel
Unpacked file:	046931a758f583cda28f5d0ab99e264af776d070486541ce063401dda4524584

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/5e4f2264-5172-4621-9355-d2193424321c/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creates or modifies symbolic links

Opens a port

Launching a process

Sets a written file as executable

Sends data to a server

Runs as daemon

Kills processes

Collects information on the CPU

Creating a file in the %temp% subdirectories

Creates directories

Changes access rights for a written file

Connection attempt

Creating a file in the %temp% directory

Manages services

DNS request

Receives data from a server

Changes the time when the file was created, accessed, or modified

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Traces processes

Writes files to system directory

Creates or modifies files to set up autorun

Creates or modifies files in /init.d to set up autorun

Creates or modifies symbolic links in /init.d to set up autorun

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

packed upx

Link:

https://www.filescan.io/uploads/6a986161747afbeb2afb7d1a/reports/e10fad70-eeea-4d21-afe7-43dfc36ea715/overview

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/1a55c980-6e2b-4a06-91ce-dda2108a6f79

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/b6da343e-c1c8-43d5-8822-4cd086825b9d

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/28fa4489e716e5c7928271d86ce8d20593f90c44d6ceac01b16f1edbcaf89a36

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/28fa4489e716e5c7928271d86ce8d20593f90c44d6ceac01b16f1edbcaf89a36/

Threat name:

Linux.Exploit.Generic

Status:

Suspicious

First seen:

2026-09-02 17:34:57 UTC

File Type:

ELF32 Little (SO)

AV detection:

6 of 36 (16.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=fd5ejcphc3s4peucohmgz2gsawj7sdce23hkyanrn4pnxsxyti3a._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/260902-wcztlsbq9w/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Writes file to shm directory

Writes file to tmp directory

Changes its process name

Checks CPU configuration

Creates a desktop entry file

Modifies Bash startup script

UPX packed file

Creates/modifies Cron job

Creates/modifies environment variables

Deletes log files

Modifies init.d

Modifies rc script

Modifies systemd

Write file to user bin folder

Writes file to system bin folder

Executes dropped EXE

Modifies Watchdog functionality

Traces itself

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

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:	elf_arm_mips_ko_so Create hunting rule

Rule name:	SUSP_ELF_LNX_UPX_Compressed_File Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects a suspicious ELF binary with UPX compression
Reference:	Internal Research