MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed
SHA3-384 hash: c2729f4316cd14d2821972273d37ccac73472046056f096b546a7f6ec8ed1118c126e5906141062f598760682cd4271c
SHA1 hash: 329fb7d53616a56c7b3b944bc6415b88767de7b9
MD5 hash: fccd616689762b5f52a471ec681d554f
humanhash: bluebird-virginia-texas-kansas
File name:.kthreadd
Download: download sample
Signature Mirai
Create hunting rule
File size:165'056 bytes
First seen:2025-08-03 07:20:29 UTC
Last seen:2025-08-21 10:31:44 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:W0bhYL+rFRsMM8qR1S4q7+nhVAjbirLePfKyUQyB:W0WqRM8qDS9+n1Le6yUPB
TLSH T1BEF338D7F800DDFEF84AE73748230409B130BBA254925A377257792BED3A1990977E86
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
5
# of downloads :
41
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-6981989-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10012509-0
Create hunting rule

Unix.Trojan.Mirai-10017111-0
Create hunting rule

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

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/688f0e0073b8ef6f4afc01ba/reports/38565508-f9e8-4755-a840-33dfe725d763/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9a75acad-f636-47a3-aaf6-c2271b297e5f
Behavior Graph:
Download SVG
%3 guuid=721a7bf3-1d00-0000-e47a-693a540c0000 pid=3156 /usr/bin/sudo guuid=fc872df7-1d00-0000-e47a-693a590c0000 pid=3161 /tmp/sample.bin guuid=721a7bf3-1d00-0000-e47a-693a540c0000 pid=3156->guuid=fc872df7-1d00-0000-e47a-693a590c0000 pid=3161 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a83bfa6d-5b7b-482f-9a80-4c4e5f54ba65
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1749349
Signature
Drops files in suspicious directories
Drops invisible ELF files
Multi AV Scanner detection for submitted file
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: 1749349 Sample: .kthreadd.elf Startdate: 03/08/2025 Architecture: LINUX Score: 64 38 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->38 40 daisy.ubuntu.com 2->40 42 Multi AV Scanner detection for submitted file 2->42 10 .kthreadd.elf 2->10         started        12 gnome-session-binary sh gsd-rfkill 2->12         started        14 gdm3 Default 2->14         started        16 3 other processes 2->16 signatures3 process4 process5 18 .kthreadd.elf 10->18         started        20 .kthreadd.elf 10->20         started        process6 22 .kthreadd.elf 18->22         started        file7 34 /etc/init.d/sysd, POSIX 22->34 dropped 44 Sample tries to set files in /etc globally writable 22->44 46 Drops files in suspicious directories 22->46 48 Sample tries to persist itself using System V runlevels 22->48 26 .kthreadd.elf sh 22->26         started        28 .kthreadd.elf 22->28         started        signatures8 process9 process10 30 sh cp 26->30         started        file11 36 /usr/bin/.sh, ELF 30->36 dropped 50 Drops invisible ELF files 30->50 52 Drops files in suspicious directories 30->52 signatures12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-03 05:43:15 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dchiygopyfsxckzolwb2jj46w3apnd7aua6qqeonffznu5k34dwq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/250803-h6t9bsysgt/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/af111f77-ba5d-4ef6-93b4-b0073e46b6d1
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/188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed

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: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 188e8c19cfc165712b2e5d83a4a79eb6c0f68fe0a03d0811cd2972da755be0ed

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3595564/
  
Delivery method
Distributed via web download

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