MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b
SHA3-384 hash: b4d0445e6b28b2bfc5826158f9826c9544518ef5eb4c4d96b89dc3e899a7ac50236d89a012dbf57b02d83c241efbf8f9
SHA1 hash: 33d82a627041dd34d3f57b54d70d9df66b6e197c
MD5 hash: 634ce70b7b14ae87ce8fcac43ae75dfa
humanhash: butter-comet-november-three
File name:mips
Download: download sample
Signature Mirai
Create hunting rule
File size:147'740 bytes
First seen:2026-08-04 12:02:56 UTC
Last seen:2026-08-05 10:59:15 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:Solj1/wvBpmrs0O1Mt4yu3EyPqwJ5zropOE4SLAOkh1wyrYD0RF9IqVg:SimownMFu3EyPh0LieyrgyvIog
TLSH T19BE31329239341FEEDA3B63BE271833D8CD15EF95C19CC043A933284995A629FCD4A5D
Magika unknown
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :147'740 bytes
File size (de-compressed) :468'216 bytes
Format:linux/mips
Unpacked file: f28cda9489a4a8f47adc7c231fa466bff14d0b74eb0c4d672735e127d0a48322

Intelligence

File Origin
# of uploads :
3
# of downloads :
97
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e5376acb-44a9-4b5f-a053-9e9e172b6db8/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Launching a process
Runs as daemon
Opens a port
Creates or modifies symbolic links
Creating a file
Creating a file in the %temp% subdirectories
Creating a file in the %temp% directory
Sets a written file as executable
Connection attempt
Changes access rights for a written file
Kills processes
Changes the time when the file was created, accessed, or modified
Creates directories
DNS request
Creates or modifies files in /cron to set up autorun
Writes files to system directory
Traces processes
Substitutes an application name
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files 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/6a71d5105bf0d357b7e97f83/reports/7689a309-6916-4cd1-96e6-4d931171a172/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
7
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b
Behaviour
Process Renaming
Anti-Debugging
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-08-04T09:22:00Z UTC
Last seen:
2026-08-06T07:57:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5f52a902-1f27-458b-af3a-acbb2c375479
Behavior Graph:
Download SVG
%3 guuid=4d756b16-6d00-0000-ba37-fb2640030000 pid=832 /usr/bin/sudo guuid=8020e917-6d00-0000-ba37-fb2641030000 pid=833 /tmp/sample.bin guuid=4d756b16-6d00-0000-ba37-fb2640030000 pid=832->guuid=8020e917-6d00-0000-ba37-fb2641030000 pid=833 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/078a1c5d-ef36-4f44-9703-d1ca6c6d800a
Result
Threat name:
DirtyFrag, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1951899
Signature
Attempts to enable/disable Ctrl-Alt-Delete system rebooting
Drops files in suspicious directories
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Uses TOR for connection hidding
Writes ELF files to hidden directories
Writes identical ELF files to multiple locations
Yara detected DirtyFrag
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1951899 Sample: mips.elf Startdate: 04/08/2026 Architecture: LINUX Score: 100 34 control.tor2web-relay-fast.onion 2->34 36 sync.softwaremirror.workers.dev 2->36 38 6 other IPs or domains 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected DirtyFrag 2->42 44 Yara detected Mirai 2->44 46 Sample is packed with UPX 2->46 9 mips.elf 2->9         started        signatures3 48 Uses TOR for connection hidding 34->48 process4 process5 11 mips.elf 9->11         started        signatures6 50 Attempts to enable/disable Ctrl-Alt-Delete system rebooting 11->50 14 mips.elf 11->14         started        process7 file8 26 /var/www/html/.network-dispatch, ELF 14->26 dropped 28 /var/www/.network-dispatch, ELF 14->28 dropped 30 /var/tmp/.network-dispatch, ELF 14->30 dropped 32 48 other malicious files 14->32 dropped 52 Sample tries to set files in /etc globally writable 14->52 54 Writes ELF files to hidden directories 14->54 56 Writes identical ELF files to multiple locations 14->56 58 3 other signatures 14->58 18 mips.elf systemctl 14->18         started        20 mips.elf systemctl 14->20         started        22 mips.elf systemctl 14->22         started        24 13 other processes 14->24 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Suspicious
First seen:
2026-08-04 12:04:28 UTC
File Type:
ELF32 Big (SO)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55xmwkf4s2f54cyfrvczirlqjs7s7ywdlhc3gam2wfo6lr6vcvfq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260804-n78e8sv1d1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b

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
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf ef6ecb28bc968bde0b058d459445704cbf2fe2c359c5b3019ab15de5c7d5154b

(this sample)

Mirai

elf f28cda9489a4a8f47adc7c231fa466bff14d0b74eb0c4d672735e127d0a48322

  
URLhaus
https://urlhaus.abuse.ch/url/3896774/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 f28cda9489a4a8f47adc7c231fa466bff14d0b74eb0c4d672735e127d0a48322
  
Dropping
MD5 bcc36508611dea72a45ed89e88d67ba5

Comments