MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f
SHA3-384 hash: 0fb08aaceb24dd64ea6b6d15b222fe255c517431ba566c6550aac978b9d6da6e1e93060310b46fdf7ca60457e4328248
SHA1 hash: c3af99435fd7c8676c790147f03d450ecbaf076b
MD5 hash: d19cd00e64da83a280461c01fed813da
humanhash: seventeen-asparagus-papa-nine
File name:kitty.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:144'664 bytes
First seen:2025-08-23 07:37:52 UTC
Last seen:2025-08-23 12:47:51 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:M+9jaztG51g3cv5O6yogqFdw9Rffst8YqGDNow4T/omEefAcMXgBjZq:MgjaztG5i3cvbyoJgRf9YqGxD4TgmEe6
TLSH T14FE3F74AB8029E51F9D026F5FB8E43D47F1303DBD3FB3902A9095BB52BD755A0E2A502
telfhash t104d0a7f3eb161f5c4794964007ce741689fc35030b00670eca0c1a0f81976a1f31e53b
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
4
# of downloads :
91
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ELF.Mirai-DAC.74971392.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Collects information on the network activity
Sends data to a server
Connection attempt
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin remote threat
Link:
https://www.filescan.io/uploads/68a970324a87ed796768f2fa/reports/2d867dce-0dc1-4502-934d-99acc06d85aa/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/61dfa4f6-16c0-403d-bcf0-0d24e6f3fbd4
Behavior Graph:
Download SVG
%3 guuid=565861d1-1a00-0000-2cb5-464a780c0000 pid=3192 /usr/bin/sudo guuid=e255e9d3-1a00-0000-2cb5-464a800c0000 pid=3200 /tmp/sample.bin guuid=565861d1-1a00-0000-2cb5-464a780c0000 pid=3192->guuid=e255e9d3-1a00-0000-2cb5-464a800c0000 pid=3200 execve
Malware family:
Bigviktor
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ae2d8e83-0eda-45d2-a711-d7cd9c2b6f15
Result
Threat name:
n/a
Detection:
suspicious
Classification:
evad
Score:
23 / 100
Link:
https://www.joesandbox.com/analysis/1763486
Signature
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1763486 Sample: kitty.arm.elf Startdate: 23/08/2025 Architecture: LINUX Score: 23 20 169.254.169.254, 80 USDOSUS Reserved 2->20 22 noname-3d45fa2f.online 66.78.40.221, 40046, 9080 QUICKPACKETUS United States 2->22 24 3 other IPs or domains 2->24 7 kitty.arm.elf 2->7         started        9 dash rm 2->9         started        11 dash rm 2->11         started        13 python3.8 dpkg 2->13         started        process3 process4 15 kitty.arm.elf 7->15         started        process5 17 kitty.arm.elf 15->17         started        signatures6 26 Sample deletes itself 17->26
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-23 07:38:38 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=idz7cmddaptdoid2fvt3icr4tgzroyte7ljz7pz4m7m3j5gz757q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250823-jg7nssap5y/
Behaviour
Reads runtime system information
Changes its process name
Deletes itself
Unexpected DNS network traffic destination
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e1c78cd8-7511-4809-9ab2-5bc445fa252b
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/40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f

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: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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 40f3f1306303e637207a2d67b40a3c99b3176264fad39fbf3c67d9b4f4d9ff7f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3609777/
  
Delivery method
Distributed via web download

Comments