MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8
SHA3-384 hash: d22e1c4a7ffd21d348a196c41aef1eb009e1de7e40c03dcb356f4d44cf3cd8914c29ac92aa6b8c28649b6487c4a408a9
SHA1 hash: 58e3784e1de17912b63a27706ca7fa4d9da8a23d
MD5 hash: c4c7cfd233b00dd3ee137965dcda4c99
humanhash: pluto-red-ink-skylark
File name:iran.i486
Download: download sample
Signature Mirai
Create hunting rule
File size:78'588 bytes
First seen:2026-05-29 13:00:36 UTC
Last seen:2026-05-29 22:52:04 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:PjM3IDSl/yK02rQx8WFa9noJ8v3QUs31fMQ1yAxsVqbr:PTQySrQx8UJhi9/U
TLSH T15A734B89F783F0F0DD4709B1106BF77E97349E125024DE5ADB947E72AD32A12A11B62C
telfhash t12641f6b72de518f8b3d04804d70e27e69a29d93b256136a442b2bc9533e3b819066c3d
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
57
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.DDoS.2637.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Connection attempt
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade rust
Link:
https://www.filescan.io/uploads/6a198e0b099ef368af0ca6be/reports/6a02312b-13e2-461c-bf75-ff5a9684252f/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
44
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-05-29T11:11:00Z UTC
Last seen:
2026-05-29T12:48:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f74fa6f8-e8a7-409f-a892-99bb437dcafa
Behavior Graph:
Download SVG
%3 guuid=84925328-1900-0000-d57e-3da6e90a0000 pid=2793 /usr/bin/sudo guuid=744f312b-1900-0000-d57e-3da6eb0a0000 pid=2795 /tmp/sample.bin guuid=84925328-1900-0000-d57e-3da6e90a0000 pid=2793->guuid=744f312b-1900-0000-d57e-3da6eb0a0000 pid=2795 execve guuid=8eacac2d-1900-0000-d57e-3da6ef0a0000 pid=2799 /tmp/sample.bin guuid=744f312b-1900-0000-d57e-3da6eb0a0000 pid=2795->guuid=8eacac2d-1900-0000-d57e-3da6ef0a0000 pid=2799 clone guuid=773bb82d-1900-0000-d57e-3da6f00a0000 pid=2800 /tmp/sample.bin delete-file net send-data zombie guuid=8eacac2d-1900-0000-d57e-3da6ef0a0000 pid=2799->guuid=773bb82d-1900-0000-d57e-3da6f00a0000 pid=2800 clone 56477de4-0fe9-5b32-aa12-4711c34bdaca 83.168.110.191:1336 guuid=773bb82d-1900-0000-d57e-3da6f00a0000 pid=2800->56477de4-0fe9-5b32-aa12-4711c34bdaca send: 684B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/221e85f1-5e42-4270-ba1b-cf8e8eeea3e3
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-05-29 13:00:58 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55ncrvsgw3uoepkpdexfchkc6pi45wccuubts7yf4xmkxtxftlua._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260529-p83rtacy5n/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes itself
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/ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8

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:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:Linux_Trojan_Mirai_3a56423b
Create hunting rule
Author:Elastic Security
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf ef5a28d646b6e8e23d4f192e511d42f3d1ced842a503397f05e5d8abcee59ae8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3812820/
  
Delivery method
Distributed via web download

Comments