MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc
SHA3-384 hash: 541a20c109d11fee231a78cc91b6aa4a68e001bc90b8c870629c7e80c80847b1c3fd207159c9d3a217a9a8d324c7541c
SHA1 hash: e9df865c56170d9575ced9b5687db5c026af9907
MD5 hash: 869814969f031bccc331e476e4093931
humanhash: north-blossom-finch-gee
File name:arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:37'792 bytes
First seen:2025-12-31 18:06:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:v/CqqalUVZZ8ir7qkbu1EDNEHHXvLaJ4DNgeXVUs3UozC:yLS67qYKXTawNTVxzC
TLSH T13A03F2357ABBE621C33147749AB5C58277CD99F8937C333E240D0B54DAE200997769C6
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) :37'792 bytes
File size (de-compressed) :97'732 bytes
Format:linux/arm
Unpacked file: 47b1826c46219ab0c6e832d1301291aeb46e079168b7281142667f243d37be46

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/347b5803-1929-497a-9e1f-41b0d4a4fafd/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/69556650127d6a14e0ca8a7e/reports/29b951dd-81a5-47a7-89bf-2bafa1a6ee66/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-31T15:12:00Z UTC
Last seen:
2025-12-31T15:28:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/68d36a2f-3589-41b7-9775-454d2e28c326
Behavior Graph:
Download SVG
%3 guuid=958ce2a1-1700-0000-aec2-3d2cef0b0000 pid=3055 /usr/bin/sudo guuid=409fbaa3-1700-0000-aec2-3d2cf60b0000 pid=3062 /tmp/sample.bin guuid=958ce2a1-1700-0000-aec2-3d2cef0b0000 pid=3055->guuid=409fbaa3-1700-0000-aec2-3d2cf60b0000 pid=3062 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8529b4b9-aad8-43ca-b892-01a594fdc890
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1842733
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-31 18:07:15 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=55l6z3vbqabaob3pq2woedi4uzx4on45yzdahrdq4ihuqiuo276a._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251231-wpzdlsgr4x/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/97d7543a-0c3b-4d06-bc67-2d0f3d0f1526
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/ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc

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: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 ef57eceea1800207076f86ace20d1ca66fc7379dc64603c470e20f48228ed7fc

(this sample)

Mirai

elf 47b1826c46219ab0c6e832d1301291aeb46e079168b7281142667f243d37be46

  
URLhaus
https://urlhaus.abuse.ch/url/3719332/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3722795/
  
Dropping
SHA256 47b1826c46219ab0c6e832d1301291aeb46e079168b7281142667f243d37be46
  
Dropping
MD5 c44c6537bdb60872a9e261907dde29e3

Comments