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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef9e070d33d68ad82b50d759f60d67d18fbb0e881604024e5cd06d7815fc53eb. 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 12 File information Comments

SHA256 hash: ef9e070d33d68ad82b50d759f60d67d18fbb0e881604024e5cd06d7815fc53eb
SHA3-384 hash: e6c10b81d1bd11070ba4b5668fba05ef5181751e7bc4cc04abc168d416e4ac0bdb42172bd5bab0894a4f843376dd892e
SHA1 hash: cc5b55dcaf65bd227f260b7f58dc727ee9589ac0
MD5 hash: dc3994afa0e678b77854b3791d27aca6
humanhash: social-red-vermont-six
File name:arm4
Download: download sample
Signature Mirai
File size:256'380 bytes
First seen:2026-09-25 17:44:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:xLyotu3Ty/R1jYez1D5G9AhXbktMp9EHsO+sbBROhXPzF8q3dLQ:RdyTSR/1NG9eXbktaNstWR8MdLQ
TLSH T12D440855F890DA92C6D12B7AFB5D4388331B1B79D3DE7002CD249F3877EA94B0A3A542
telfhash t13be02241573e4a8c8bd824200849053b8aad3ea43e9578aa4b9e361e5d32f40f4ea830
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 7de477ad8331fe4eb69b93b8255cb98020b6e0992c77de443854f4bbfcf4e049
File size (compressed) :112'360 bytes
File size (de-compressed) :256'380 bytes
Format:linux/arm
Packed file: 7de477ad8331fe4eb69b93b8255cb98020b6e0992c77de443854f4bbfcf4e049

Intelligence


File Origin
# of uploads :
1
# of downloads :
79
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Opens a port
Launching a process
Sets a written file as executable
Sends data to a server
Runs as daemon
Kills processes
Creates directories
Changes access rights for a written file
Connection attempt
Manages services
Receives data from a server
Changes the time when the file was created, accessed, or modified
Mounts file systems
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
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-09-25T17:21:00Z UTC
Last seen:
2026-09-25T20:50:00Z UTC
Hits:
~10
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-09-25 17:44:25 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 36 (27.78%)
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 ef9e070d33d68ad82b50d759f60d67d18fbb0e881604024e5cd06d7815fc53eb

(this sample)

  
Delivery method
Distributed via web download

Comments