MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc3b5315c3ea9fb7c58a4f2c6f49d5ca4f37791c2289d0ab19626dc3d7eeb50b. 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 3 File information Comments

SHA256 hash: cc3b5315c3ea9fb7c58a4f2c6f49d5ca4f37791c2289d0ab19626dc3d7eeb50b
SHA3-384 hash: 84abb0d831f60cb5caedd0c513ddc750b47247592714473d98906e3d1cdd08bde777059e329b2ab2b63015dec4351ba8
SHA1 hash: 2d418001f21a4892481f8ec845f6445b2e3c8cd1
MD5 hash: d416f402356ee73f6e684fe8550cfd87
humanhash: pizza-beryllium-sodium-gee
File name:FKO
Download: download sample
Signature Mirai
File size:89'304 bytes
First seen:2026-08-04 12:36:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:tmnzHmTTjSTil6rUgXWDrU4oZCdisb/6S2Yn/RIC7iaZOyd00yqdlEUiaWND5D9v:YHm/jVoQy0SCd96S2w7iaZOyd27oWNPT
TLSH T14793186ABD409F09D4C526BAFE5E534D33532BB8E3EE7102DE146B2527CA91B0F3A441
telfhash t1aaf0840147aa0cdc16f0a14290fe875f4665ba572a208887f9d4df0f8063bc2722962f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Creating a file
Connection attempt
Sets a written file as executable
Kills processes
Runs as daemon
Writes symbolic links to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin rust
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
95
Number of processes launched:
7
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-04T06:28:00Z UTC
Last seen:
2026-08-04T07:25:00Z UTC
Hits:
~10
Result
Threat name:
Generic IoTBotnet
Detection:
malicious
Classification:
spre.troj
Score:
84 / 100
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Generic IoTBotnet
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1951910 Sample: FKO.elf Startdate: 04/08/2026 Architecture: LINUX Score: 84 42 129.121.110.105, 65323 ORACLE-BMC-31898-OracleCorporationUS United States 2->42 44 129.121.114.124, 35623 ORACLE-BMC-31898-OracleCorporationUS United States 2->44 46 3 other IPs or domains 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected Generic IoTBotnet 2->52 10 FKO.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 systemd snapd-env-generator 2->14         started        16 6 other processes 2->16 signatures3 process4 process5 18 FKO.elf 10->18         started        process6 20 FKO.elf 18->20         started        process7 22 FKO.elf 20->22         started        26 FKO.elf 20->26         started        28 FKO.elf 20->28         started        30 6 other processes 20->30 file8 36 /etc/rc.local, POSIX 22->36 dropped 38 /etc/crontab, ASCII 22->38 dropped 40 /etc/cron.d/crond, ASCII 22->40 dropped 54 Sample tries to set files in /etc globally writable 22->54 56 Sample reads /proc/mounts (often used for finding a writable filesystem) 22->56 58 Sample tries to persist itself using cron 22->58 60 Sample tries to persist itself using System V runlevels 22->60 32 FKO.elf systemctl 22->32         started        34 FKO.elf systemctl 22->34         started        62 Sample tries to kill multiple processes (SIGKILL) 26->62 signatures9 process10
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-08-04 12:38:44 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
Creates/modifies Cron job
Enumerates running processes
Modifies rc script
Modifies systemd
Please note that we are no longer able to provide a coverage score for Virus Total.

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_Threat_0ea505fa
Author:Elastic Security
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
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 cc3b5315c3ea9fb7c58a4f2c6f49d5ca4f37791c2289d0ab19626dc3d7eeb50b

(this sample)

  
Delivery method
Distributed via web download

Comments