MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c9d3cfb28e71b2f71412a8bfe32d4fc7124abf6662b450cf85329e51c676942. 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: 9


Intelligence 9 IOCs YARA 17 File information Comments

SHA256 hash: 9c9d3cfb28e71b2f71412a8bfe32d4fc7124abf6662b450cf85329e51c676942
SHA3-384 hash: 23b3c1c48e96bd2e63f3ff03ef86e3271fa19c3411b374f551d164e7ca3a03d87576d134e69a0fd4bdee486e6d2620d8
SHA1 hash: e21653cda563e58cdab37833a17cf0eed18dc497
MD5 hash: 922821c9bea36648c1b20986a4accadc
humanhash: eleven-lake-aspen-earth
File name:kurayami.i686
Download: download sample
Signature Mirai
File size:151'084 bytes
First seen:2026-03-30 06:59:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:Tr+UdlptN9Xr4QfJThvz4y6wSPd+qMgXR8/OA+:eUdlp/9MSThrSl2OA
TLSH T155E3398CF58FC1F6DA0788308066F7BFCB31A4254076D68EEF95AF35DA275829216358
telfhash t1555142b9feba1dec1bc08911d28e6b21ec0ef23b716136fc09e216a5327354161b5c38
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 06349156d85a3a8577ac8cfd03c84ae468b5b0be477fafdeb7ce7892a55ddd29
File size (compressed) :59'972 bytes
File size (de-compressed) :151'084 bytes
Format:linux/i386
Packed file: 06349156d85a3a8577ac8cfd03c84ae468b5b0be477fafdeb7ce7892a55ddd29

Intelligence


File Origin
# of uploads :
1
# of downloads :
55
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Runs as daemon
Opens a port
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin masquerade mirai remote
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Behavior Graph:
%3 guuid=bf7c4f08-2100-0000-a07f-f3e6cb080000 pid=2251 /usr/bin/sudo guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259 /tmp/sample.bin net guuid=bf7c4f08-2100-0000-a07f-f3e6cb080000 pid=2251->guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=cfa44c0b-2100-0000-a07f-f3e6d5080000 pid=2261 /tmp/sample.bin guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259->guuid=cfa44c0b-2100-0000-a07f-f3e6d5080000 pid=2261 clone guuid=82ea3d38-2200-0000-a07f-f3e6ef0a0000 pid=2799 /tmp/sample.bin guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259->guuid=82ea3d38-2200-0000-a07f-f3e6ef0a0000 pid=2799 clone guuid=20234438-2200-0000-a07f-f3e6f00a0000 pid=2800 /tmp/sample.bin net send-data zombie guuid=77c2d50a-2100-0000-a07f-f3e6d3080000 pid=2259->guuid=20234438-2200-0000-a07f-f3e6f00a0000 pid=2800 clone guuid=d21f9f0b-2100-0000-a07f-f3e6d6080000 pid=2262 /tmp/sample.bin guuid=cfa44c0b-2100-0000-a07f-f3e6d5080000 pid=2261->guuid=d21f9f0b-2100-0000-a07f-f3e6d6080000 pid=2262 clone guuid=75f0b40b-2100-0000-a07f-f3e6d7080000 pid=2263 /tmp/sample.bin net send-data zombie guuid=cfa44c0b-2100-0000-a07f-f3e6d5080000 pid=2261->guuid=75f0b40b-2100-0000-a07f-f3e6d7080000 pid=2263 clone guuid=75f0b40b-2100-0000-a07f-f3e6d7080000 pid=2263->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 5b1fbf77-b20c-52ab-bd01-8608ea336134 142.248.80.144:69 guuid=75f0b40b-2100-0000-a07f-f3e6d7080000 pid=2263->5b1fbf77-b20c-52ab-bd01-8608ea336134 send: 10B guuid=20234438-2200-0000-a07f-f3e6f00a0000 pid=2800->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=20234438-2200-0000-a07f-f3e6f00a0000 pid=2800->5b1fbf77-b20c-52ab-bd01-8608ea336134 send: 6B
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-03-30 03:25:56 UTC
File Type:
ELF32 Little (Exe)
AV detection:
25 of 36 (69.44%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
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:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Mirai_0cb1699c
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_485c4b13
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_7d05725e
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Author:Elastic Security
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 9c9d3cfb28e71b2f71412a8bfe32d4fc7124abf6662b450cf85329e51c676942

(this sample)

  
Delivery method
Distributed via web download

Comments