MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83987b8617b087a0f812d3ca770d01d8f5edc9e328e54950e2f13db06c809de9. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 83987b8617b087a0f812d3ca770d01d8f5edc9e328e54950e2f13db06c809de9
SHA3-384 hash: 6a4eb933cdd7c6870efcd45d9322af82037185de9e0a1d80dc9f59fe56f9fc903967c911fa9e543e6256a6dd9790decd
SHA1 hash: 09f93d4ef33219a1f2aa24d77c3e6991bb12f477
MD5 hash: e3efacb909a921c554ccbf2000734a1c
humanhash: iowa-friend-undress-apart
File name:arm7
Download: download sample
Signature Mirai
File size:108'968 bytes
First seen:2025-03-28 22:27:31 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:O4Lls7o1hVVtyRMntd6pPYL1EDVxIoCyyfn5aJLqBP8jjJJEXoOFznjb:O4Lls7o1hVVtyRuLgAL1SXnyP5aJLqBb
TLSH T1A7B3F65AB9819F16D5DA15BAFE4F518D332317ACE3EE7202DD146B2037CA62B0E7B401
telfhash t190c0127397759eec5ac4c3024198910cc8eaf5dc7611a97bdd7827c64c86f91b02e811
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
99
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Mounts file systems
Runs as daemon
Creating a file
DNS request
Opens a port
Receives data from a server
Unmounts file systems
Sends data to a server
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
154
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
23
Behaviour
Anti-VM
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
type: 74.125.250.129:19302
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
60 / 100
Signature
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1651544 Sample: arm7.elf Startdate: 28/03/2025 Architecture: LINUX Score: 60 12 daisy.ubuntu.com 2->12 14 Multi AV Scanner detection for submitted file 2->14 16 Yara detected Mirai 2->16 7 arm7.elf 2->7         started        signatures3 process4 signatures5 18 Sample reads /proc/mounts (often used for finding a writable filesystem) 7->18 10 arm7.elf 7->10         started        process6
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2025-03-28 22:28:18 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery
Behaviour
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Renames itself
Unexpected DNS network traffic destination
Contacts a large (30670) amount of remote hosts
Creates a large amount of network flows
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:ach_202503_elf_Mirai
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:Linux_Generic_Threat_8299c877
Author:Elastic Security
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 83987b8617b087a0f812d3ca770d01d8f5edc9e328e54950e2f13db06c809de9

(this sample)

  
Delivery method
Distributed via web download

Comments