MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112
SHA3-384 hash: acededace17a536b218cc7bc2bbe78a0a9e51be20d8ed77a3fff949936723f34814b2837471f99986726e85f77cf5b0d
SHA1 hash: fae6ea7a42a77a67c710bf1904d20f473c1f3a93
MD5 hash: d78ea58f312c9a643b1fa2939f1e0215
humanhash: virginia-april-india-louisiana
File name:skid.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:18'488 bytes
First seen:2026-01-11 05:34:39 UTC
Last seen:2026-01-11 13:26:43 UTC
File type: elf
MIME type:application/x-executable
ssdeep 384:MnfzRV0P6iOwrkom0DRnVATuSlShu6NvmPWtUn+KMaW9hymdGUop5h5l6:2dV0P6+kom0tVAoNvm+to1Ms3Uoznl6
TLSH T17E82CF3061AB74F9DBF10435EAAECEC6671A0BF8D1FC32D317586B78894110625F92CA
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 UPX
File size (compressed) :18'488 bytes
File size (de-compressed) :47'096 bytes
Format:linux/arm
Unpacked file: af9ccc76ef1bb3598a1df726b52ded24b4c1a748bb9b94628de5b22d65d4491e

Intelligence

File Origin
# of uploads :
2
# of downloads :
50
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/619f8e52-87dc-4a8d-8d2c-63ca3c053e6d/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-8274771-0
Create hunting rule

Unix.Trojan.Mirai-10056442-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/696336ad30368802bb7fccac/reports/2e86d065-4ff9-4a98-8e74-1337cc2430e5/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-11T02:49:00Z UTC
Last seen:
2026-01-12T12:48:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d03e0571-53d6-4c25-ba34-e92d52129fe4
Behavior Graph:
Download SVG
%3 guuid=fb59d91b-1b00-0000-03ee-2776040a0000 pid=2564 /usr/bin/sudo guuid=9353021e-1b00-0000-03ee-27760c0a0000 pid=2572 /tmp/sample.bin guuid=fb59d91b-1b00-0000-03ee-2776040a0000 pid=2564->guuid=9353021e-1b00-0000-03ee-27760c0a0000 pid=2572 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2628d94c-bf7c-4fcf-8d61-7f78eb4e4ee2
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1848236
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-11 05:28:27 UTC
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54ydvhann6nxaqboeoy53zjr6iangkkdflibsopyiqly6dohqeja._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260111-f99r3sax2e/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-8274771-0
YARA:
n/a
Link:
https://app.threat.zone/submission/9f0ab481-d133-4e16-a232-aa8f2bb97938
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/ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112

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: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 ef303a9c0d6f9b70402e23b1dde531f200d329432ad01939f844178f0dc78112

(this sample)

Mirai

elf af9ccc76ef1bb3598a1df726b52ded24b4c1a748bb9b94628de5b22d65d4491e

  
URLhaus
https://urlhaus.abuse.ch/url/3755705/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 af9ccc76ef1bb3598a1df726b52ded24b4c1a748bb9b94628de5b22d65d4491e
  
Dropping
MD5 089581221527326a6a0362da7b852060

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