MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d57ee028e58364660d400a755b67058b2a211b43c62dbfe16f1b316104f0e31. 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: 7


Intelligence 7 IOCs YARA 8 File information Comments

SHA256 hash: 1d57ee028e58364660d400a755b67058b2a211b43c62dbfe16f1b316104f0e31
SHA3-384 hash: c8a75757c0a305310f6747502f9312e2f868a08e6d9d7fe6a7e084b39aa10fd44b6ffe9290d9f7c4ff9f8a653aa46a4e
SHA1 hash: fb52916d84ddf7bb9f6715184abc238e1a0e006d
MD5 hash: 872ae08626653a323cca7154fdc5034a
humanhash: ack-table-solar-carpet
File name:kurayami.sh4
Download: download sample
Signature Mirai
File size:164'704 bytes
First seen:2026-04-01 09:24:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:nJqn73FvDaOmynee0PI71NGH19rVCUQLhQhWjEKpGhB:nJG5aXeEH19M1QsjvGhB
TLSH T12BF39D33C965AE98C6649474E0B1FE795B539A0641871FBB1AA7CBB54043DCCFE043B8
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 :
70
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Result
Gathering data
Verdict:
Malicious
File Type:
ELF 32 LE
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=6c4dbe7f-1600-0000-1538-e79d500e0000 pid=3664 /usr/bin/sudo guuid=d19e7c82-1600-0000-1538-e79d540e0000 pid=3668 /tmp/sample.bin guuid=6c4dbe7f-1600-0000-1538-e79d500e0000 pid=3664->guuid=d19e7c82-1600-0000-1538-e79d540e0000 pid=3668 execve
Gathering data
Result
Malware family:
Score:
  10/10
Tags:
family:mirai linux
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: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 1d57ee028e58364660d400a755b67058b2a211b43c62dbfe16f1b316104f0e31

(this sample)

  
Delivery method
Distributed via web download

Comments