MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01
SHA3-384 hash: 7d48e526bea20d98667566c34154bb887a3393cb460f6b2d9b3a069c4d71d7475a3357b2847c99f03589db333b082e2a
SHA1 hash: 38d78adec4cceba0854b5ad8d1687416fb575ffe
MD5 hash: 1ef3b1e139074f184b3df2e8dc808201
humanhash: north-beryllium-fruit-uncle
File name:m68k.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:199'224 bytes
First seen:2025-09-11 21:46:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:ccItjkbDiUtkysyzyD/6TuDeMCoNz8RAo:cYniUtkylMCoZ8RAo
TLSH T1DC147D86F400DE7DF88FDB3B81574A26B131979120420B27B26BF957BD360961A3EF85
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
96
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30645.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

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

Unix.Trojan.Mirai-6981989-0
Create hunting rule

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

Unix.Trojan.Gafgyt-7782058-0
Create hunting rule

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

Unix.Trojan.Mirai-9940650-0
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.Mirai-10018298-0
Create hunting rule

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

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm
Link:
https://www.filescan.io/uploads/68c34333732879482927446c/reports/bc3af579-d009-41be-bd38-9fa5f7c30021/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-11T19:36:00Z UTC
Last seen:
2025-09-11T19:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7ae95394-c1bb-414c-96d1-a3e09e19812c
Behavior Graph:
Download SVG
%3 guuid=a91ec9fc-1700-0000-0be2-32475c0c0000 pid=3164 /usr/bin/sudo guuid=b1da77ff-1700-0000-0be2-32475d0c0000 pid=3165 /tmp/sample.bin guuid=a91ec9fc-1700-0000-0be2-32475c0c0000 pid=3164->guuid=b1da77ff-1700-0000-0be2-32475d0c0000 pid=3165 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e8fedc5b-642d-4043-9463-f3bfdd49641c
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1776008
Signature
Deletes system log files
Sample reads /proc/mounts (often used for finding a writable filesystem)
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1776008 Sample: m68k.urbotnetisass.elf Startdate: 11/09/2025 Architecture: LINUX Score: 76 47 94.154.35.153, 43212 SELECTELRU Ukraine 2->47 49 Yara detected Gafgyt 2->49 51 Yara detected Mirai 2->51 10 m68k.urbotnetisass.elf 2->10         started        12 udisksd dumpe2fs 2->12         started        14 udisksd dumpe2fs 2->14         started        16 12 other processes 2->16 signatures3 process4 process5 18 m68k.urbotnetisass.elf 10->18         started        file6 39 /_dev_shm_.5460_librt.so.1, ELF 18->39 dropped 41 /_dev_shm_.5460_libpthread.so.0, ELF 18->41 dropped 43 /_dev_shm_.5460_libm.so.6, ELF 18->43 dropped 45 6 other malicious files 18->45 dropped 53 Writes identical ELF files to multiple locations 18->53 22 m68k.urbotnetisass.elf 18->22         started        24 m68k.urbotnetisass.elf 18->24         started        signatures7 process8 process9 26 m68k.urbotnetisass.elf 22->26         started        29 m68k.urbotnetisass.elf 24->29         started        signatures10 55 Sample reads /proc/mounts (often used for finding a writable filesystem) 26->55 57 Deletes system log files 26->57 31 m68k.urbotnetisass.elf 26->31         started        33 m68k.urbotnetisass.elf 26->33         started        35 m68k.urbotnetisass.elf 26->35         started        37 7 other processes 26->37 process11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-11 21:47:30 UTC
File Type:
ELF32 Big (Exe)
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xn3376pxyqrake7lyvbjfwoe4udiokpbqcmvuw34a4rmsmjlnyaq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250911-1nfx4abj5s/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/44c63cce-13d5-419b-886b-770cdcc3b991
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/bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01

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: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 bb77bff9f7c4220513ebc54292d9c4e5068729e180995a5b7c0722c9312b6e01

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618254/
  
Delivery method
Distributed via web download

Comments