MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9
SHA3-384 hash: af4153011fc1b3366553dfed91c7ad19f31e67f4b69dde9e5acac3ea1b846fbab1a8f01943ab6716c43280b8a020e422
SHA1 hash: 2c5f05eaa5434ce40153196e3bcd36e1a2f7db74
MD5 hash: 0a0abc9e92b1cca923b83bbe114f6584
humanhash: massachusetts-stairway-oscar-lima
File name:Kloki.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:55'008 bytes
First seen:2025-01-14 15:46:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:DzJgPRPYb2oKvTHf40ZhXyv222Hl/BCUWf:vJgsKLwUQvMHt5S
TLSH T14733F16B075FA97DE0BF1E33397182A5BE55D814666B4F1D12BF6233AE331908A12313
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 :
106
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-10029418-0
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678686f64487910100def050linux22vpnfull_triage
Tags:
mirai virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Runs as daemon
Connection attempt
Receives data from a server
Opens a port
DNS request
Sends data to a server
Kills processes
Substitutes an application name
Kills critical processes
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/678686ff3c232c0ddc8efae8/reports/62adafa4-41db-4e40-9497-2008bb4892ea/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
custom
Botnet:
unknown
Number of open files:
3
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
13566
Full report:
https://elfdigest.com/brief/def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7109dc2a-1da0-4354-9a7c-6e6b0575f15d
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1591054
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1591054 Sample: Kloki.x86_64.elf Startdate: 14/01/2025 Architecture: LINUX Score: 60 23 83.222.162.131, 13566, 37846 WAVENETLB Bulgaria 2->23 25 83.222.163.228, 13566, 37106 WAVENETLB Bulgaria 2->25 27 66 other IPs or domains 2->27 31 Malicious sample detected (through community Yara rule) 2->31 33 Multi AV Scanner detection for submitted file 2->33 8 Kloki.x86_64.elf 2->8         started        10 gnome-session-binary sh gnome-shell 2->10         started        12 gnome-session-binary sh gsd-print-notifications 2->12         started        14 5 other processes 2->14 signatures3 process4 process5 16 Kloki.x86_64.elf 8->16         started        process6 18 Kloki.x86_64.elf 16->18         started        21 Kloki.x86_64.elf 16->21         started        signatures7 29 Sample tries to kill multiple processes (SIGKILL) 18->29
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-14 15:47:03 UTC
File Type:
ELF64 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=33zpvxkht4ff6nih5ekmfa7pwjoiotlaavfhkzh3hf3doinq2k4q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/250114-s76zmasjhx/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Renames itself
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10029418-0
YARA:
n/a
Link:
https://app.threat.zone/submission/bd139ea1-ef69-4736-8350-0734eed12be1
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_antiunpack_elf64
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:UPX Anti-Unpacking technique to magic renamed for ELF64

File information

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

Web download

Mirai

elf def2fadd479f0a5f3507e914c283efb25c874d60054a7564fb39763721b0d2b9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3397138/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3397150/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments