MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293
SHA3-384 hash: c45f72f6484e0c79438cd290660d35dc9074851ef5f29641f25a012c02ff9e07c569029628f7ad8e91e03c39b4649562
SHA1 hash: fd206e1fc485111340b8f5f7325368669a5402b4
MD5 hash: a7a45b78560757b4f270ebbae2627d3a
humanhash: king-edward-december-queen
File name:Space.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:74'836 bytes
First seen:2025-10-29 15:12:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:8A9Uqtm/qzBpzah2tYeQmP7uW2wORzBbkivom3aJ2ndLNn:8A9U7KB9ah2tYe3PrXORzBbVvfndLN
TLSH T161733985F987C6F2D4474830426BFB3FCB32D8A511B19B0DDF569F35DA33602AA22649
telfhash t1c121bffb1dbe08fda7d89940c25e6fe22826c77b556036b00563c6353367ea144a8c3d
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 20f573ad38a6b62fbc9b3dbe9999b29beee2713eff0cafe4773fa5191fc11b6f
File size (compressed) :35'948 bytes
File size (de-compressed) :74'836 bytes
Format:linux/i386
Packed file: 20f573ad38a6b62fbc9b3dbe9999b29beee2713eff0cafe4773fa5191fc11b6f

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-62.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/69024004de25fddba05bf46d/reports/0a40a8bc-1770-4fc2-a62f-2b521bce8e5b/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-08-15T14:45:00Z UTC
Last seen:
2025-08-15T16:18:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a696174e-be39-45c9-a244-f6519a581cca
Behavior Graph:
Download SVG
%3 guuid=b3460867-1a00-0000-b443-38a2520b0000 pid=2898 /usr/bin/sudo guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901 /tmp/sample.bin net guuid=b3460867-1a00-0000-b443-38a2520b0000 pid=2898->guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a57d7269-1a00-0000-b443-38a2570b0000 pid=2903 /tmp/sample.bin guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901->guuid=a57d7269-1a00-0000-b443-38a2570b0000 pid=2903 clone guuid=7c26e995-1b00-0000-b443-38a25f0d0000 pid=3423 /tmp/sample.bin guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901->guuid=7c26e995-1b00-0000-b443-38a25f0d0000 pid=3423 clone guuid=c2e0f495-1b00-0000-b443-38a2600d0000 pid=3424 /tmp/sample.bin net zombie guuid=77d32569-1a00-0000-b443-38a2550b0000 pid=2901->guuid=c2e0f495-1b00-0000-b443-38a2600d0000 pid=3424 clone guuid=e3487869-1a00-0000-b443-38a2580b0000 pid=2904 /tmp/sample.bin guuid=a57d7269-1a00-0000-b443-38a2570b0000 pid=2903->guuid=e3487869-1a00-0000-b443-38a2580b0000 pid=2904 clone guuid=7be67f69-1a00-0000-b443-38a2590b0000 pid=2905 /tmp/sample.bin net zombie guuid=a57d7269-1a00-0000-b443-38a2570b0000 pid=2903->guuid=7be67f69-1a00-0000-b443-38a2590b0000 pid=2905 clone cb97a10d-2511-5b80-98bc-1074e1213278 185.196.9.137:3778 guuid=7be67f69-1a00-0000-b443-38a2590b0000 pid=2905->cb97a10d-2511-5b80-98bc-1074e1213278 con guuid=c2e0f495-1b00-0000-b443-38a2600d0000 pid=3424->cb97a10d-2511-5b80-98bc-1074e1213278 con
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5c117252-59a9-4622-bf1f-415684d38d34
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1804795
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1804795 Sample: Space.i686.elf Startdate: 30/10/2025 Architecture: LINUX Score: 72 20 185.196.9.137, 3778, 50438, 50440 SIMPLECARRIERCH Switzerland 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 Space.i686.elf 2->8         started        signatures3 process4 process5 10 Space.i686.elf 8->10         started        12 Space.i686.elf 8->12         started        14 Space.i686.elf 8->14         started        process6 16 Space.i686.elf 10->16         started        18 Space.i686.elf 10->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-29 16:25:54 UTC
File Type:
ELF32 Little (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhl437ag4zalleur5sabg2j6ch2fatc2a7rwabuewgqkr5ao4kjq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd defense_evasion discovery linux
Link:
https://tria.ge/reports/251029-tsykda1pcv/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Unknown
Tags:
trojan gafgyt mirai
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Mirai_268aac0b Linux_Trojan_Mirai_0cb1699c Linux_Trojan_Mirai_70ef58f1 Linux_Trojan_Mirai_485c4b13 Linux_Trojan_Mirai_7d05725e Linux_Trojan_Mirai_2e3f67a9 Linux_Trojan_Mirai_0d73971c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/e4b83332-5a04-4bc6-abdc-f355b7d02927
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
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_485c4b13
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_7d05725e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
Create hunting rule
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 20f573ad38a6b62fbc9b3dbe9999b29beee2713eff0cafe4773fa5191fc11b6f

Mirai

elf 81d7cdfc06e640b59291ec8013693e11f4504c5a07e3600684b1a0a8f40ee293

(this sample)

  
Dropped by
SHA256 20f573ad38a6b62fbc9b3dbe9999b29beee2713eff0cafe4773fa5191fc11b6f
  
URLhaus
https://urlhaus.abuse.ch/url/3602602/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3602622/
  
URLhaus
https://urlhaus.abuse.ch/url/3602627/
  
URLhaus
https://urlhaus.abuse.ch/url/3602630/
  
URLhaus
https://urlhaus.abuse.ch/url/3602687/
  
URLhaus
https://urlhaus.abuse.ch/url/3602676/
  
URLhaus
https://urlhaus.abuse.ch/url/3602696/
  
URLhaus
https://urlhaus.abuse.ch/url/3602675/

Comments