MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912
SHA3-384 hash: 4300ac64fe50aa489596a4519377c28d3c03ac6a7a756acc43fd82ef57ebfb191ab45abc4ab0cc14a1b9a00dcba5be63
SHA1 hash: b6309c6b744374b59cb5d278e1130db5bacc1f23
MD5 hash: 27958da2d32b00deac2e252c9d291b48
humanhash: friend-bakerloo-two-green
File name:klogd
Download: download sample
Signature Mirai
Create hunting rule
File size:101'496 bytes
First seen:2025-07-19 22:25:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:hYcca8cVp87JK5II4ZsZE1Wm2gSgaYqBc32pcOrM38k+mX9uP3vDmWG:hYc//81S0ZrYFgaYD2BcAHD9G
TLSH T191A32AC5F9419A26C6C156B3FB1F428D771A03A8D2FE3203DD294FA1778B85B0E3A945
telfhash t125111f338f9a4c8c52f4c06ac4a7b11a129c36b92f033dae9f5d9f8780c3081b11182b
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 :
21
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated rust
Link:
https://www.filescan.io/uploads/687c1b918a7d628a81b7ea92/reports/fceb6760-a424-4d99-bb18-50103a0a4480/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/92a2267d-3ccc-4873-ba6c-cd41f472d2f5
Behavior Graph:
Download SVG
%3 guuid=cb6f9606-1900-0000-07ec-7513e0110000 pid=4576 /usr/bin/sudo guuid=70125a08-1900-0000-07ec-7513e9110000 pid=4585 /tmp/sample.bin guuid=cb6f9606-1900-0000-07ec-7513e0110000 pid=4576->guuid=70125a08-1900-0000-07ec-7513e9110000 pid=4585 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a51b683-327f-4eb5-bce1-a51ff6dcc25b
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1740233
Signature
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Terminates several processes with shell command 'killall'
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1740233 Sample: klogd.elf Startdate: 20/07/2025 Architecture: LINUX Score: 56 41 88.98.151.145 ZEN-ASZenInternet-UKGB United Kingdom 2->41 43 102.82.135.212 ZAINUGASUG Uganda 2->43 45 98 other IPs or domains 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Connects to many ports of the same IP (likely port scanning) 2->49 10 klogd.elf 2->10         started        signatures3 process4 process5 12 klogd.elf 10->12         started        process6 14 klogd.elf 12->14         started        16 klogd.elf 12->16         started        process7 18 klogd.elf sh 14->18         started        20 klogd.elf sh 14->20         started        22 klogd.elf sh 14->22         started        24 75 other processes 14->24 process8 26 sh killall 18->26         started        29 sh killall 20->29         started        31 sh killall 22->31         started        33 sh killall 24->33         started        35 sh killall 24->35         started        37 sh killall 24->37         started        39 72 other processes 24->39 signatures9 51 Terminates several processes with shell command 'killall' 26->51
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Gafgyt.a
Link:
https://tip.neiki.dev/file/d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-19 22:26:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 22 (63.64%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2ssumxkawhydxqlg47coqkrtmsiooeirqgwzikyrrz66l4fkdeja._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:kyton defense_evasion discovery
Link:
https://tria.ge/reports/250719-2cpljasp15/
Behaviour
Reads runtime system information
Changes its process name
Reads CPU attributes
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Writes memory of remote process
Contacts a large (148338) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6b38a409-56ad-47d5-a2c6-e175edd08320
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/d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912

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:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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 d4a5465d40b1f03bc166e7c4e82a336490e7111181ad942b118e7de5f0aa1912

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576533/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3584471/
  
URLhaus
https://urlhaus.abuse.ch/url/3584481/

Comments