MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9c5e5e50af14289a1c9ddfeef4abc9f145fc0761bc9faf486c9f8aba76553a9. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: a9c5e5e50af14289a1c9ddfeef4abc9f145fc0761bc9faf486c9f8aba76553a9
SHA3-384 hash: cd03f2a7f273067dad31fc5a7c80c15640d197c1ee3628f201981cde6cb1a43dcc47997c6e45bb15a51fb29bf6643367
SHA1 hash: e7c05581fd808a4af28271099dc43d9c5f595cb6
MD5 hash: 4f36adb8c8812d9e28edd5712722c4c4
humanhash: helium-sodium-carolina-ceiling
File name:arm6
Download: download sample
Signature Mirai
File size:74'384 bytes
First seen:2025-12-13 16:56:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:2KaLbN2+ihcOTLn3WOqAwYHc2/CL36ac3WylsnByCV8Ey2URnLwH:2XLFelTTFPr8eCL3jc3FiIC5y9RLwH
TLSH T1C77302D24733DD22CD691571DADF1BC0CAA9AE7205CF6A62235816002DD6203B7EFA1B
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 UPX
File size (compressed) :74'384 bytes
File size (de-compressed) :213'012 bytes
Format:linux/arm
Unpacked file: f1379f7365f9e28c2b647901e2f4fbb69f46dbbf2513918bb9a3de79870dd9a7

Intelligence


File Origin
# of uploads :
1
# of downloads :
49
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gafgyt mirai obfuscated packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-13T14:06:00Z UTC
Last seen:
2025-12-14T02:13:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Signature
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Gafgyt
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1832083 Sample: arm6.elf Startdate: 13/12/2025 Architecture: LINUX Score: 68 38 151.242.30.13, 12121, 49858, 49860 RASANAIR Iran (ISLAMIC Republic Of) 2->38 40 54.217.10.153, 34602, 443 AMAZON-02US United States 2->40 42 daisy.ubuntu.com 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected Gafgyt 2->46 48 Sample is packed with UPX 2->48 8 arm6.elf 2->8         started        11 dash rm 2->11         started        13 dash cat 2->13         started        15 9 other processes 2->15 signatures3 process4 file5 36 /usr/local/bin/infinitd, ELF 8->36 dropped 17 arm6.elf 8->17         started        19 arm6.elf 8->19         started        21 arm6.elf sh 8->21         started        23 3 other processes 8->23 process6 process7 25 arm6.elf 17->25         started        28 arm6.elf 19->28         started        30 arm6.elf 19->30         started        32 sh 21->32         started        34 sh 23->34         started        signatures8 50 Manipulation of devices in /dev 25->50 52 Deletes system log files 25->52
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-13 16:57:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery persistence privilege_escalation upx
Behaviour
Reads runtime system information
UPX packed file
Enumerates running processes
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Deletes Audit logs
Deletes journal logs
Modifies Watchdog functionality
Creates a large amount of network flows
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
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:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Author:RandomMalware

File information


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

Web download

Mirai

elf a9c5e5e50af14289a1c9ddfeef4abc9f145fc0761bc9faf486c9f8aba76553a9

(this sample)

  
Delivery method
Distributed via web download

Comments