MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0. 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: 9

Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash:	8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0
SHA3-384 hash:	7d2c98acdef4a270aa9ee638e44bb0643c1399e220cc4bcbad05902d9f80fb2cdea9073451abc0001b6f1e81f47c5138
SHA1 hash:	62436518e1e3437322e2d8aa556f83c0cd2aaa74
MD5 hash:	81951bd4758d495ca424ac721e97b184
humanhash:	sixteen-florida-kentucky-asparagus
File name:	nullnet_bash.sh
Download:	download sample
Signature	Mirai Create hunting rule
File size:	3'795 bytes
First seen:	2026-03-03 12:47:31 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	96:v4BB4IX4vl41B4GTn45h40j4o54zN4sB43t4GkGO4ez4GD4kk:UW
TLSH	T1B37182D42370C3377CA2463614B95ED863C5AEE791D58EE0B0BA3F61C88DE4C2E947A1
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:	mirai 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://83.142.209.47/nullnet_bin_dir/nullnet_load.x86	2694786c0c215fd283d00d61c8d54e995cd200aac62940e676a106c64d7b463d	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.mips	0aea4555589b1b899abc68c1c6e60903e9f79c29d7f817275762fa40505d2f00	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.mpsl	6d088ec98a0223b9fb5c9372e78397c97f8a02e1355b46ccecf75d487b68db47	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.arm	938a4c50b4efbb1ad97e31393f4ab160c1baa254277f645f82967d687b01a21a	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.arm5	b8b60a5af170ade4f14b344da059ebecda89c9e136c42f33e588cd480a63aad1	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.arm6	5072a1c51d5944cda12ab3aa04bc2df03f50883046b49753dca3ea8fab6cba63	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.arm7	58e1a7510261151f4cf95b51aa40bc33bcd29fbbb2ff568a7227588c81d72dc4	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.ppc	3eefbb511d87b67d9afc982a39a7aef9ea4fbb47a0995fc3178d3c7e86b2c84f	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.m68k	6258a47ba514ed17a41d868bb45914d11768be1dc7da62bac054dd9d32d8a92c	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.sh4	6613f0240f310bedbf9633de0ef39d8883c0927f2b28ca32e272fbee89ef7176	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.spc	765369623f5d00b45c21af0a064755157cee636712c21665f1f988696061fd3e	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.arc	5f07344e1374ea935af3d6041ae1185f172500aacc65949c553389f0bdcc086f	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.x86_64	3eb5b92e68f86b7be50f6bbbf9d679333edf9ba4b0d2e7e4bec5e70fbf527955	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.i686	f989861d8c1d0176ceed8040454829ae94a1ca802dd3ebf4a31817e71193bac2	Mirai	mirai
http://83.142.209.47/nullnet_bin_dir/nullnet_load.i486	1ef4f2143568fb1a6daa77cf4f34b430f9d5e5cc7e1ed05a9edc959ccfadfa72	Mirai	mirai

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Sanesecurity.Malware.30790.LX.BOT.UNOFFICIAL

SecuriteInfo.com.Linux.Downloader-29.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

medusa mirai

Link:

https://www.filescan.io/uploads/69a6d88dcd25bfe1dfdf1b09/reports/7bca976e-4cf0-4c2c-b5d2-0af18fc0bba5/overview

Result

Gathering data

Verdict:

Malicious

File Type:

unix shell

Detections:

HEUR:Trojan-Downloader.Shell.Agent.a HEUR:Trojan-Downloader.Shell.Agent.p HEUR:Trojan-Downloader.Shell.Agent.gen

Link:

https://opentip.kaspersky.com/8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/2f289cb9-d2fa-4795-ab3e-229c1c6de0f5

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0/

Verdict:

Malicious

Threat:

Family.MIRAI

Link:

https://tip.neiki.dev/file/8ecff67913822cba865d3f69777425e16c8eee250e13cc88fd2c21add4d785d0

Threat name:

Linux.Downloader.Medusa

Status:

Malicious

First seen:

2026-03-01 12:11:31 UTC

File Type:

Text (Shell)

AV detection:

22 of 36 (61.11%)

Threat level:

3/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=r3h7m6itqiwlvbs5h5uxo5bf4fwi53rfbyj4zch5fqq23vgxqxia._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:ecchi antivm botnet credential_access defense_evasion discovery linux upx

Link:

https://tria.ge/reports/260303-p1vq8sgs9w/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Checks CPU configuration

Reads system network configuration

Reads process memory

UPX packed file

Enumerates active TCP sockets

Enumerates running processes

File and Directory Permissions Modification

Executes dropped EXE

Modifies Watchdog functionality

Contacts a large (28806) amount of remote hosts

Creates a large amount of network flows

Mirai

Mirai family

Malware Config

C2 Extraction:

83.142.209.47

Malware family:

Mirai

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8ecff6791382/report/overview.html

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:	Linux_Shellscript_Downloader Create hunting rule
Author:	albertzsigovits
Description:	Generic Approach to Shellscript downloaders

Rule name:	MAL_Linux_IoT_MultiArch_BotnetLoader_Generic Create hunting rule
Author:	Anish Bogati
Description:	Technique-based detection of IoT/Linux botnet loader shell scripts downloading binaries from numeric IPs, chmodding, and executing multi-architecture payloads
Reference:	MalwareBazaar sample lilin.sh