MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 203cd3515a24b4ba1535e11d8009971e8e654115e24c00ed9bc56bcb0d34bee1. 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 7 File information Comments

SHA256 hash: 203cd3515a24b4ba1535e11d8009971e8e654115e24c00ed9bc56bcb0d34bee1
SHA3-384 hash: b5e3e6943acd16f35a71f5ee0eda6aa04f169dcf0431b141b46a8e5b55b2b0fb88de8ee74015d7875e64d0b8323a057a
SHA1 hash: b60d2d763bb8a337f6098afbe6bfa9e8565f62d4
MD5 hash: dbadf2b59516b49fcd6d7f3c676feb82
humanhash: video-tennis-yankee-neptune
File name:nz.arm6
Download: download sample
Signature Mirai
File size:99'804 bytes
First seen:2026-03-30 00:29:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:AAnTSlOO7kf5J7ZLBpqppsGBgyQxJ4s3k77axrtOXrDsRilp+xfVMv7fh5GYW76:yl5bppsJj4qk77ax4p+xfVkbhUL76
TLSH T15DA32946F8814A21C5D512BEFA1E318E331357BCE2DE73129E14AF3173865AB0E7B616
telfhash t1f9f0aca0865616ec27f4e50cc1af202c6a3d79a6372a1575448d0b8a87a71c2f50983b
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 63b36d9e77a05e324ce805274ef6c173dac5fd5043ecb52977e479a62c9f085e
File size (compressed) :44'780 bytes
File size (de-compressed) :99'804 bytes
Format:linux/arm
Packed file: 63b36d9e77a05e324ce805274ef6c173dac5fd5043ecb52977e479a62c9f085e

Intelligence


File Origin
# of uploads :
1
# of downloads :
46
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-03-29T21:37:00Z UTC
Last seen:
2026-03-29T21:49:00Z 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
Status:
terminated
Behavior Graph:
%3 guuid=aca92c73-1e00-0000-0682-f68ea40b0000 pid=2980 /usr/bin/sudo guuid=65b0f374-1e00-0000-0682-f68ea90b0000 pid=2985 /tmp/sample.bin guuid=aca92c73-1e00-0000-0682-f68ea40b0000 pid=2980->guuid=65b0f374-1e00-0000-0682-f68ea90b0000 pid=2985 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-03-30 00:30:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_XORed_Mozilla_Oct19
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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

File information


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

Web download

Mirai

elf 203cd3515a24b4ba1535e11d8009971e8e654115e24c00ed9bc56bcb0d34bee1

(this sample)

  
Delivery method
Distributed via web download

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