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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37f65cc49edad552f1ba17c024927f8448e721284cacf7e2e09eed12289ea7e8. 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: 7


Intelligence 7 IOCs YARA 12 File information Comments

SHA256 hash: 37f65cc49edad552f1ba17c024927f8448e721284cacf7e2e09eed12289ea7e8
SHA3-384 hash: 0b041a289dda87f7f68f18e5991089d1937e6bede1f9e6b83a1e0bf03c3a4b51dbbd1ef80f4304b13058d5f967aca6a6
SHA1 hash: 38b09759c60f64008693a355c5de264c57a7ccb8
MD5 hash: 3e5e87bab82c5a8ccc920b0093fc64c5
humanhash: nevada-speaker-georgia-leopard
File name:arm5
Download: download sample
Signature Mirai
File size:256'232 bytes
First seen:2026-09-25 22:53:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:txwj/g1abYRh0c3Tc/3rp6FeLMqeM/Fu2M9BlYuO+JR8qtdb:4yabihjDE3t6FeLJ3MTdf8Gdb
TLSH T1AA442955F890DBA2C6C0277AFB5D438833171B79D3DE7102CD249F3967EA98A0E3A542
telfhash t16de022a157ba17e8d3e521011a867a0d46bd3dad736618d1ab003a2f1f25341f4e8e34
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 93076f0bf75451c27fd7af12ea110ff80d485d076f9103afd93a19fb2b7b216f
File size (compressed) :112'152 bytes
File size (de-compressed) :256'232 bytes
Format:linux/arm
Packed file: 93076f0bf75451c27fd7af12ea110ff80d485d076f9103afd93a19fb2b7b216f

Intelligence


File Origin
# of uploads :
1
# of downloads :
73
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sets a written file as executable
Receives data from a server
Manages services
Creates directories
Changes access rights for a written file
Creating a file
Mounts file systems
Opens a port
Changes the time when the file was created, accessed, or modified
Launching a process
Runs as daemon
Sends data to a server
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin rust
Status:
terminated
Behavior Graph:
%3 guuid=25d04dba-1900-0000-bb6a-5c6a4f080000 pid=2127 /usr/bin/sudo guuid=72c987be-1900-0000-bb6a-5c6a58080000 pid=2136 /tmp/sample.bin guuid=25d04dba-1900-0000-bb6a-5c6a4f080000 pid=2127->guuid=72c987be-1900-0000-bb6a-5c6a58080000 pid=2136 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-09-25 22:53:42 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
Modifies the /etc/hosts DNS resolution file
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: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_Packer_Dropper_Fileless_Armhf
Author:Serhii Kocherhan
Description:Detects obfuscated Linux ELF packers/droppers featuring ChaCha20/RC4 decryption, memfd_create/execveat fileless execution capabilities, and unique binary artifacts.
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:test_rule_vldslv
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
Rule name:virustotal
Author:Tracel

File information


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

Web download

Mirai

elf 37f65cc49edad552f1ba17c024927f8448e721284cacf7e2e09eed12289ea7e8

(this sample)

  
Delivery method
Distributed via web download

Comments