MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
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SHA256 hash: 31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4
SHA3-384 hash: d8376e7b588f61507d7a15656db16b0dd201b62eb61a2cb005967b423df20885308d6331b477b1b40342e0bbd0a70f1f
SHA1 hash: ad5c74a3eeb93c1666ba8efefe1bea6d760e82c1
MD5 hash: 7bb0a864688d34cb68e502d9ca6df6d1
humanhash: steak-oklahoma-low-oxygen
File name:mirai.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:771'672 bytes
First seen:2026-02-13 09:14:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:nia8WRugqbOyI/TeGObgN2Q1yVNgnxDnjdzHD6dQ6h/4KoRDS2CayU4zHX:ia8WRugqiyI/TeGKQoVNgnh4R4KoRDSv
TLSH T14DF47D2AA2F3B1BCC117C03047DBDAB25532F47516306E7B16C4DA353E6ADE02729B66
telfhash t15991347448ea7170b6dac6017363f0b9a9321cb665ed39b027376e98eec5f811c76813
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 juroots
Tags:elf mirai x86

Intelligence

File Origin
# of uploads :
1
# of downloads :
35
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135868-0
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Unix.Dropper.Mirai-7135891-0
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Unix.Dropper.Mirai-7135892-0
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Unix.Dropper.Mirai-7135965-0
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Unix.Dropper.Mirai-7136013-0
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Unix.Dropper.Mirai-7136034-0
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Unix.Dropper.Mirai-7136057-0
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Unix.Dropper.Mirai-7136070-0
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Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9858729-0
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Unix.Trojan.Mirai-10027280-0
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Unix.Trojan.Mirai-1
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Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-02-12T23:12:00Z UTC
Last seen:
2026-02-12T23:22:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.fg
Link:
https://opentip.kaspersky.com/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/88fa5ed9-f04c-4760-a2ed-c42be4db086b
Behavior Graph:
Download SVG
%3 guuid=f94da96c-1b00-0000-c3a5-c53b1b090000 pid=2331 /usr/bin/sudo guuid=d7664170-1b00-0000-c3a5-c53b1c090000 pid=2332 /tmp/sample.bin delete-file net guuid=f94da96c-1b00-0000-c3a5-c53b1b090000 pid=2331->guuid=d7664170-1b00-0000-c3a5-c53b1c090000 pid=2332 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=d7664170-1b00-0000-c3a5-c53b1c090000 pid=2332->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 8ff25191-b423-5251-a735-2378c22ab12a 0.0.0.0:48101 guuid=d7664170-1b00-0000-c3a5-c53b1c090000 pid=2332->8ff25191-b423-5251-a735-2378c22ab12a con
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eae69a43-686d-4db2-9e31-b0ea841bfb45
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2026-02-13 09:17:45 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghlguohm6j2aweirxyurvihfnn4mvo6p2erg2jvebzpgbooj5ksa._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/260213-k7lppaas2e/
Behaviour
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Deletes itself
Modifies Watchdog functionality
Contacts a large (23844) amount of remote hosts
Creates a large amount of network flows
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/31d66a38ecf2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.62
Link:
https://yomi.yoroi.company/submissions/31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:F01_s1ckrule
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Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_95e0056c
Create hunting rule
Author:Elastic Security
Rule name:malwareelf55503
Create hunting rule
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: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 31d66a38ecf2740b1111be291aa0e56b78cabbcfd1226d26a40e5e60b9c9eaa4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3777032/
  
Delivery method
Distributed via web download

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