MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697
SHA3-384 hash: 75cdf070a5f35fb45094614f7af18c8992f31084bc33364251796a048df33f8ada1bf378e0c7e818565993b47dcae82d
SHA1 hash: eaa9e766ef79dba1a17df2d891dd9f13f189ce4b
MD5 hash: 6ad752d93e622d8f4a8daff660a5f54e
humanhash: india-iowa-single-lion
File name:MoO
Download: download sample
Signature Mirai
Create hunting rule
File size:82'528 bytes
First seen:2026-07-22 02:53:49 UTC
Last seen:2026-07-22 08:22:10 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:BbnTFiGHuYu5ks5PynmUXeQhDIzLOP3DNHpUDRRuW5llikiYV0bvOE2:tFimekiwjdwOP3DNHpUDRzsiV0Cn
TLSH T1F383082ABD419F05D5D526BAFF1E538933536BBCE3EE7102EE141B2527CA91B0F2A401
telfhash t1ba01f13506c44cdc9bd0c106e1ef152ac98ef8b93720098eb5fdef8a92a36d5b312409
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
102
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Siggen.13586.15222.6639.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Creating a file
Connection attempt
Sets a written file as executable
Kills processes
Runs as daemon
Writes symbolic links to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai rust
Link:
https://www.filescan.io/uploads/6a6030eca2f4086c588be69c/reports/ed278615-a670-4ab9-8bff-bf33a632243f/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-22T00:53:00Z UTC
Last seen:
2026-07-23T22:18:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1e9e1056-d6e5-4b76-9d41-0ae87b549d6e
Behavior Graph:
Download SVG
%3 guuid=a112e7b4-1900-0000-1c71-fe76c1080000 pid=2241 /usr/bin/sudo guuid=174bedb7-1900-0000-1c71-fe76c9080000 pid=2249 /tmp/sample.bin guuid=a112e7b4-1900-0000-1c71-fe76c1080000 pid=2241->guuid=174bedb7-1900-0000-1c71-fe76c9080000 pid=2249 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/42763af4-9c05-43a4-a77d-0501b0d25697
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1946233
Signature
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1946233 Sample: MoO.elf Startdate: 22/07/2026 Architecture: LINUX Score: 68 42 94.154.43.102, 56012, 5900 CDNEXTGB Turkey 2->42 44 Multi AV Scanner detection for submitted file 2->44 10 MoO.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 systemd snapd-env-generator 2->14         started        16 6 other processes 2->16 signatures3 process4 process5 18 MoO.elf 10->18         started        process6 20 MoO.elf 18->20         started        process7 22 MoO.elf 20->22         started        26 MoO.elf 20->26         started        28 MoO.elf 20->28         started        30 5 other processes 20->30 file8 36 /etc/rc.local, POSIX 22->36 dropped 38 /etc/crontab, ASCII 22->38 dropped 40 /etc/cron.d/crond, ASCII 22->40 dropped 46 Sample tries to set files in /etc globally writable 22->46 48 Sample reads /proc/mounts (often used for finding a writable filesystem) 22->48 50 Sample tries to persist itself using cron 22->50 52 Sample tries to persist itself using System V runlevels 22->52 32 MoO.elf systemctl 22->32         started        34 MoO.elf systemctl 22->34         started        54 Sample tries to kill multiple processes (SIGKILL) 26->54 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-22 02:54:39 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=m4nxb43hc7kdrfqppwjd6xikpbrbv253s6sahxses3dwgoqhu2lq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260722-dd7azacm8x/
Behaviour
Reads runtime system information
Checks CPU configuration
Creates/modifies Cron job
Enumerates running processes
Modifies rc script
Modifies systemd
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/671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697

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:Linux_Generic_Threat_0ea505fa
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 671b70f36717d438960f7d923f5d0a78621aebbb97a403de4496c7633a07a697

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3889964/
  
Delivery method
Distributed via web download

Comments