MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25d33386482d4776ad8cd3692ffdb6aeb1da964958de0a3eb441ae7736506b87. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments

SHA256 hash: 25d33386482d4776ad8cd3692ffdb6aeb1da964958de0a3eb441ae7736506b87
SHA3-384 hash: a57596c04becb62e21b75fa3877a6766f7f72a79e26a51bd5c0a6b476b25ad12be0e0f11bd7b40e7085bc540876e9aa0
SHA1 hash: 8495f6f2902776b0f7806b33515a756643f66e34
MD5 hash: 11a1d14f6a89d783d3c2ccbee05f3e9f
humanhash: blossom-fruit-apart-oranges
File name:arm5
Download: download sample
Signature Mirai
File size:69'076 bytes
First seen:2024-12-01 04:21:58 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:+wbClf15xutOseAZlTJvvDv+/SZTRr1Ou:+wb2DsBZ9JvK/835
TLSH T17B633A81FD819A12C6D521BBFB6E428D772653A8D3EF7203D9256F20378792B0E37641
telfhash t1bfe0df990e990adc3260ce84d2df0129726c38fabd1624a421df6f9845935a0b230848
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
125
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug lolbin mirai remote
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
4
Number of processes launched:
6
Processes remaning?
true
Remote TCP ports scanned:
37215
Behaviour
Anti-VM
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to many IPs within the same subnet mask (likely port scanning)
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sends malformed DNS queries
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1566011 Sample: arm5.elf Startdate: 01/12/2024 Architecture: LINUX Score: 100 26 shitrocket.dyn. [malformed] 2->26 28 hikvision.geek. [malformed] 2->28 30 104 other IPs or domains 2->30 32 Suricata IDS alerts for network traffic 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 40 4 other signatures 2->40 9 arm5.elf 2->9         started        signatures3 38 Sends malformed DNS queries 28->38 process4 signatures5 42 Sample reads /proc/mounts (often used for finding a writable filesystem) 9->42 12 arm5.elf 9->12         started        14 arm5.elf 9->14         started        16 arm5.elf 9->16         started        process6 process7 18 arm5.elf 12->18         started        20 arm5.elf 12->20         started        22 arm5.elf 14->22         started        process8 24 arm5.elf 18->24         started       
Threat name:
Linux.Trojan.Mirai
Status:
Malicious
First seen:
2024-12-01 04:22:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Behaviour
Reads runtime system information
Changes its process name
Unexpected DNS network traffic destination
Contacts a large (209373) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
botnet mirai Unix.Dropper.Mirai-7355719-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_1
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_d94e1020
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
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 25d33386482d4776ad8cd3692ffdb6aeb1da964958de0a3eb441ae7736506b87

(this sample)

  
Delivery method
Distributed via web download

Comments