MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa4036feb52590153147960dfa2b6e652a3e8504a71730fd7b90ee2ece1f99d. 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: 5


Intelligence 5 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efa4036feb52590153147960dfa2b6e652a3e8504a71730fd7b90ee2ece1f99d
SHA3-384 hash: 15e3f747efa2a1ebfc345f907d919f446f77b94c7ac8146683a93211c013fd94f57e5172afc1274a442a2a3699755764
SHA1 hash: 0ff17cc60ff427853c6280baf1ceb1295ff6e539
MD5 hash: 6196903059df0d53c9d9fc7a05f17358
humanhash: single-kitten-autumn-venus
File name:attd
Download: download sample
Signature Mirai
Create hunting rule
File size:35'592 bytes
First seen:2026-03-28 15:09:50 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:RWu62wHk2185ebRalDXZIReVDkIbsrtqyH4TwMIZ1TOwS:RWugHk2185eslDdkQWs
TLSH T1E8F2FAA6B7B91B3BC0E0637951F2670334AA2BE504B0C34FBD550D6D6F92390A567AF0
telfhash t15df0c094ad7943a448c18e38ac9d0353c403f13910529b28ff04d9d444bf008f32dd2f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated
Link:
https://www.filescan.io/uploads/69c7ef59e2df9aa488bbe211/reports/0e97b297-3116-4e4c-af92-2662b75b3408/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/dba3ed99-d5f5-4451-940c-3eb45d8fa572
Behavior Graph:
Download SVG
%3 guuid=e54dda97-1800-0000-d2db-1a0e0a0d0000 pid=3338 /usr/bin/sudo guuid=4241999a-1800-0000-d2db-1a0e110d0000 pid=3345 /tmp/sample.bin guuid=e54dda97-1800-0000-d2db-1a0e0a0d0000 pid=3338->guuid=4241999a-1800-0000-d2db-1a0e110d0000 pid=3345 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b826f878-a45e-49b5-b94e-3f0f28665aa5
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/efa4036feb52590153147960dfa2b6e652a3e8504a71730fd7b90ee2ece1f99d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efa4036feb52590153147960dfa2b6e652a3e8504a71730fd7b90ee2ece1f99d/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-28 14:31:37 UTC
File Type:
ELF32 Big (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56sag37lkjmqcuyupfqn7ivw4zjkh2cqjjyxgd6xxehof3hb7goq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260328-sj6zqafz6m/
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:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 efa4036feb52590153147960dfa2b6e652a3e8504a71730fd7b90ee2ece1f99d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3806416/
  
Delivery method
Distributed via web download

Comments