MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff. 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: 9


Intelligence 9 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff
SHA3-384 hash: a1e9ac2e2fac7aca2c399377b40a8715898a071c021754b352614ba3e1a6dc242598c880fdbeb2525eca2a4b8d5627c3
SHA1 hash: bdbc18358dcc14e2b2fa27245a1f2696366e3a98
MD5 hash: f7630a6846665dd83e94f1b7d1ffaef8
humanhash: twenty-texas-eleven-one
File name:sh4.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:231'572 bytes
First seen:2025-10-02 05:04:16 UTC
Last seen:2025-10-02 10:40:04 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:E+IYf6bib8JeCsjTI5ZfeRnzUg/SIFUtvyD5pi+C5JQ:WYCObueCsjM3GR4g6IOFI5pi+C5JQ
TLSH T13934BE23D8396E94D8544970B5F4CF788F436A90C44B6DF5A9DBCAB08007E8EB21D7B9
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 :
2
# of downloads :
137
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm
Link:
https://www.filescan.io/uploads/68de07e1c564c8e81d0c415f/reports/0954b74c-a2e2-4a1e-9278-bb7a74ca1f07/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-02T04:01:00Z UTC
Last seen:
2025-10-02T05:25:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/faad1137-dd12-4554-a99e-b7c28a4cfbbe
Behavior Graph:
Download SVG
%3 guuid=832d6192-1800-0000-236e-29f0140d0000 pid=3348 /usr/bin/sudo guuid=07695294-1800-0000-236e-29f01a0d0000 pid=3354 /tmp/sample.bin guuid=832d6192-1800-0000-236e-29f0140d0000 pid=3348->guuid=07695294-1800-0000-236e-29f01a0d0000 pid=3354 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b10016c9-4801-496f-be40-c5e53fa1a8da
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1787833
Signature
Antivirus / Scanner detection for submitted sample
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-02 05:04:36 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uk3g57dttmz35osa3nl3h2ap76l4tefpyw5xauruq5shl3aacx7q._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251002-fqgl7axtgv/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7136288-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c3c8f0bc-5824-421c-80c1-a60957019469
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/a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf a2b66efc739b33beba40db57b3e80fff97c990afc5bb705234876475ec0015ff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618253/
  
Delivery method
Distributed via web download

Comments