MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e
SHA3-384 hash: 768e3b7a72f3bdf05601ceb03233899cf4b13ec63d0bd4499a3a76359c5b859f2ea82a2910af3f3f17cb626d050562db
SHA1 hash: cd7339171f95ce22a6f48dfcc00dcded447ed71b
MD5 hash: 649d114a22afd05947975a5b58d5d0ad
humanhash: black-mockingbird-november-triple
File name:kurayami.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:70'740 bytes
First seen:2026-03-30 06:57:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:2SA9ENb1r8Vr6oU19i0lzM339BtKfdYMWzT0nmMCaV/lubVy:2SAUb1OQ19i0lz439BgdY10mM9g5y
TLSH T165630287F11FDC76DC5259B139A38088F310E64FDABA132D45052A784DBBE721469FE4
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 adliwahid
Tags:mirai UPX
File size (compressed) :70'740 bytes
File size (de-compressed) :189'992 bytes
Format:linux/amd64
Unpacked file: f202499650c3e64e3fb73930238ce42ba3e2696a1e40c5e45e98019c6d54436c

Intelligence

File Origin
# of uploads :
1
# of downloads :
47
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Connection attempt
Runs as daemon
Sends data to a server
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
condi gafgyt mirai packed upx
Link:
https://www.filescan.io/uploads/69ca1f062346b9da57afb8d0/reports/7753f428-aa26-4f66-9888-f38173b4242d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-03-29T22:32:00Z UTC
Last seen:
2026-03-29T22:50:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r
Link:
https://opentip.kaspersky.com/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5effb723-5c6e-4d55-85d2-cd2f0a5e1ed3
Behavior Graph:
Download SVG
%3 guuid=a29cb4ff-1b00-0000-c633-e286720b0000 pid=2930 /usr/bin/sudo guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935 /tmp/sample.bin mprotect-exec net guuid=a29cb4ff-1b00-0000-c633-e286720b0000 pid=2930->guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=9ff83102-1c00-0000-c633-e2867b0b0000 pid=2939 /tmp/sample.bin guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935->guuid=9ff83102-1c00-0000-c633-e2867b0b0000 pid=2939 clone guuid=d2399b2c-1d00-0000-c633-e286970d0000 pid=3479 /tmp/sample.bin guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935->guuid=d2399b2c-1d00-0000-c633-e286970d0000 pid=3479 clone guuid=c9f9a12c-1d00-0000-c633-e286980d0000 pid=3480 /tmp/sample.bin net send-data zombie guuid=f86a5601-1c00-0000-c633-e286770b0000 pid=2935->guuid=c9f9a12c-1d00-0000-c633-e286980d0000 pid=3480 clone guuid=5e613902-1c00-0000-c633-e2867c0b0000 pid=2940 /tmp/sample.bin guuid=9ff83102-1c00-0000-c633-e2867b0b0000 pid=2939->guuid=5e613902-1c00-0000-c633-e2867c0b0000 pid=2940 clone guuid=14123e02-1c00-0000-c633-e2867d0b0000 pid=2941 /tmp/sample.bin net send-data zombie guuid=9ff83102-1c00-0000-c633-e2867b0b0000 pid=2939->guuid=14123e02-1c00-0000-c633-e2867d0b0000 pid=2941 clone guuid=14123e02-1c00-0000-c633-e2867d0b0000 pid=2941->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 5b1fbf77-b20c-52ab-bd01-8608ea336134 142.248.80.144:69 guuid=14123e02-1c00-0000-c633-e2867d0b0000 pid=2941->5b1fbf77-b20c-52ab-bd01-8608ea336134 send: 6B guuid=c9f9a12c-1d00-0000-c633-e286980d0000 pid=3480->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=c9f9a12c-1d00-0000-c633-e286980d0000 pid=3480->5b1fbf77-b20c-52ab-bd01-8608ea336134 send: 6B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e1abc193-65b6-4385-b01c-41b6f7b00395
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-30 03:21:55 UTC
File Type:
ELF64 Little (Exe)
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqfk45uo2ecpw3epl7cwspjzqtksynswwqmp6vnyx723nesqffha._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/260330-hq2ngags21/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
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/640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf 640aae768ed104fb6c8f5fc5693d3984d52c3656b418ff55b8bff5b69250294e

(this sample)

Mirai

elf f202499650c3e64e3fb73930238ce42ba3e2696a1e40c5e45e98019c6d54436c

  
Dropping
SHA256 f202499650c3e64e3fb73930238ce42ba3e2696a1e40c5e45e98019c6d54436c
  
Dropping
MD5 8f769c544b5ff67d3431fafab2dcbf85
  
URLhaus
https://urlhaus.abuse.ch/url/3808210/
  
Delivery method
Distributed via web download

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