MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56cfb1aefd8e536c6edaafaeb577cf21376463721600dfe09f4c9046f77a24ba. 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: 9


Intelligence 9 IOCs YARA 9 File information Comments

SHA256 hash: 56cfb1aefd8e536c6edaafaeb577cf21376463721600dfe09f4c9046f77a24ba
SHA3-384 hash: 887f0c0511dcacce4ccc41757d94d7a5aeaf92e15d7364bbb117cc5ecda38679ec7ccd79b0cdef86edd09ec2587f76ff
SHA1 hash: 737aecf873a90390a1863ca09d63b4b3fc37e450
MD5 hash: 9681d5c4664c1d8cbc9563973d45f60a
humanhash: skylark-network-johnny-black
File name:bin.armv4tl
Download: download sample
Signature Mirai
File size:221'968 bytes
First seen:2026-07-15 08:05:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:xWMdvXipkUsXLCloeuFanKx3lbFQWeVze5ljP32:xbvbUsXGlsFan8SWeNe3jP
TLSH T13624E947B991CF12C1C111BEFE5F418D37136FB8D2DA72029D24AFA477868EA0E7A116
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Collects information on the network activity
Launching a process
Manages services
Runs as daemon
Changes access rights for a written file
Opens a port
Receives data from a server
Changes the time when the file was created, accessed, or modified
Connection attempt
DNS request
Creating a file
Mounts file systems
Sets a written file as executable
Sends data to a server
Substitutes an application name
Writes files 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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bashlite dropper gcc mirai rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-15T06:07:00Z UTC
Last seen:
2026-07-16T19:02:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=ec21e754-1900-0000-11bc-d307ed0e0000 pid=3821 /usr/bin/sudo guuid=0a9ea456-1900-0000-11bc-d307f40e0000 pid=3828 /tmp/sample.bin guuid=ec21e754-1900-0000-11bc-d307ed0e0000 pid=3821->guuid=0a9ea456-1900-0000-11bc-d307f40e0000 pid=3828 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-15 08:06:48 UTC
File Type:
ELF32 Little (Exe)
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies systemd
Write file to user bin folder
File and Directory Permissions Modification
Deletes Audit logs
Deletes itself
Deletes journal logs
Modifies Watchdog functionality
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:CVE_2017_17215
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Exploit_CVE_2017_17215_8b78a857
Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_c19ca8e5
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 56cfb1aefd8e536c6edaafaeb577cf21376463721600dfe09f4c9046f77a24ba

(this sample)

  
Delivery method
Distributed via web download

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