MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 721d764d2d1985eefb42fee9e1e2f05d4f4f35bbec216b952cdad74b0ac90cd1. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 721d764d2d1985eefb42fee9e1e2f05d4f4f35bbec216b952cdad74b0ac90cd1
SHA3-384 hash: e13a9ed68ddaa77e9b649bc930635dbbe3620354cc977d25fe2a959478ca6f554c001affd338e053a66d492cf80cadf2
SHA1 hash: b2ca1aebb0c04a794ccc69397b59f1bfb4d4109e
MD5 hash: 695ea7aa314c4478a06aa48945bfd561
humanhash: asparagus-ack-rugby-lactose
File name:arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:121'196 bytes
First seen:2026-07-21 20:05:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:dqtcHkQ2uce3J5M2rj74VSfqTaHBQK4ayOqONdESzFppluZwywYZMLttj6D+3tlg:dqtchDZ5MO44qsBQ14+SZpVr7Y
TLSH T136C30845FC509B12C6C255BBFF4E828D7B261758E3EE72039D256F64378B86B0E3A042
telfhash t136b01278674c192804e001c258f3351005f2300d1d451c04b07c591d65514e13062197
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai rust
Link:
https://www.filescan.io/uploads/6a5fd1192e46e175ba87ea33/reports/18b2a234-5e32-4fd3-b14e-ae4e96dcbeb1/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7abe7a4b-aa25-4384-bac5-20768875194c
Behavior Graph:
Download SVG
%3 guuid=0e6193c6-1600-0000-e971-108f780b0000 pid=2936 /usr/bin/sudo guuid=718f2fc8-1600-0000-e971-108f7f0b0000 pid=2943 /tmp/sample.bin guuid=0e6193c6-1600-0000-e971-108f780b0000 pid=2936->guuid=718f2fc8-1600-0000-e971-108f7f0b0000 pid=2943 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4bd3455b-7c7f-4dde-86bf-09092d5a5a95
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1946113
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1946113 Sample: arm5.elf Startdate: 21/07/2026 Architecture: LINUX Score: 48 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United States 2->14 16 3 other IPs or domains 2->16 18 Multi AV Scanner detection for submitted file 2->18 6 dash rm 2->6         started        8 dash rm 2->8         started        10 arm5.elf 2->10         started        signatures3 process4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/721d764d2d1985eefb42fee9e1e2f05d4f4f35bbec216b952cdad74b0ac90cd1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/721d764d2d1985eefb42fee9e1e2f05d4f4f35bbec216b952cdad74b0ac90cd1/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-21 20:06:01 UTC
File Type:
ELF32 Little (Exe)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oioxmtjndgc6562c73u6dyxqlvhu6nn35qqwxfjm3lluwcwjbtiq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260721-yt78eshl5x/
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_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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 721d764d2d1985eefb42fee9e1e2f05d4f4f35bbec216b952cdad74b0ac90cd1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3885602/
  
Delivery method
Distributed via web download

Comments