MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20a39dbab341d848280bb34b1bfbb40da0837b918ab3ee7b2dc77a9ac28b0c71. 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: 6


Intelligence 6 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20a39dbab341d848280bb34b1bfbb40da0837b918ab3ee7b2dc77a9ac28b0c71
SHA3-384 hash: 11cd3305c24651da851c2049b0f93d577ef28b90476c292a61817c38fb05e54bcca69d21101d57c4e8d56878fcf19964
SHA1 hash: 455ffbe9e2e79df9da55c7f7500dea96d516405f
MD5 hash: 8966b031553ba7d8c6d22e804a2e6798
humanhash: single-mango-ink-emma
File name:arm4
Download: download sample
Signature Mirai
Create hunting rule
File size:177'724 bytes
First seen:2026-08-10 17:39:48 UTC
Last seen:2026-08-10 17:51:27 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:eG1PvMN02dv99WVuuu5JNBWRRUeEvIZwOKD14WgWYinrYTtaJ:eiMN02EVuF5JNBW/KIZwOKD1q2MxaJ
TLSH T1EA042996F880DE62C6D027BABA9D42CC33131778D3D97106CD246F3977EB95A0B3A941
Magika elf
Reporter BlinkzSec
Tags:mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
42
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32138.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Gafgyt-9939811-0
Create hunting rule

Unix.Trojan.Mirai-10056451-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Launching a process
Creating a file
Sends data to a server
Connection attempt
Locks files
Creating a file in the %temp% directory
Sets a written file as executable
Changes access rights for a written file
Kills processes
Changes the time when the file was created, accessed, or modified
Runs as daemon
Changes access rights for a file
DNS request
Opens a port
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin rust
Link:
https://www.filescan.io/uploads/6a7a0d9088ed8c5e41c67649/reports/06ead5d4-0d23-4f87-9861-d5d919f2d78e/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3dace0eb-0f5a-438a-8524-dd692197a054
Behavior Graph:
Download SVG
%3 guuid=6cfdc1cf-1b00-0000-3ced-74856d090000 pid=2413 /usr/bin/sudo guuid=72e30bd7-1b00-0000-3ced-74857f090000 pid=2431 /tmp/sample.bin guuid=6cfdc1cf-1b00-0000-3ced-74856d090000 pid=2413->guuid=72e30bd7-1b00-0000-3ced-74857f090000 pid=2431 execve
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/20a39dbab341d848280bb34b1bfbb40da0837b918ab3ee7b2dc77a9ac28b0c71
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/20a39dbab341d848280bb34b1bfbb40da0837b918ab3ee7b2dc77a9ac28b0c71/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-10 17:34:22 UTC
File Type:
ELF32 Little (SO)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ecrz3ovtihmeqkalwnfrx65ubwqig64rrkz646zny55jvqulbryq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260810-v848jahe98/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Looks up external IP address via web service
Modifies rc script
Modifies systemd
Write file to user bin folder
Unexpected DNS network traffic destination
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:elf_arm_mips_ko_so
Create hunting rule
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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 20a39dbab341d848280bb34b1bfbb40da0837b918ab3ee7b2dc77a9ac28b0c71

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3901043/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3901058/
  
URLhaus
https://urlhaus.abuse.ch/url/3901071/
  
URLhaus
https://urlhaus.abuse.ch/url/3901107/

Comments