MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0
SHA3-384 hash: 04107e756c9d2a9c00f79e88420fd2fd8cc7b5403419459c7ec119d28a914a7f1513a44047ce3d8bf1d55547709e4dea
SHA1 hash: f59c3a3524529ba14dbf57ae7789ea43a2161a4d
MD5 hash: d831fae685cdba682bd87fbf90988237
humanhash: spaghetti-pennsylvania-skylark-mountain
File name:mirai.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:113'168 bytes
First seen:2025-12-24 06:01:28 UTC
Last seen:2025-12-24 22:16:39 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:+81ImMF99cM75KpZ/2yzRX8Xf702W2Q7WD3nI3:YDF99cM7spZ/CXf702W1SD43
TLSH T138B3E70E6E218F7DFBAD823547B74E21929833D626E1C685D15CEA011EB034E345FFA9
telfhash t181117058483852f4e7a65d9c6bdcff35e45160db5a122d3b8d00fe9e992d9419d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
73
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/86e5f89b-1f3b-43f6-8aec-be372c4becff/
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30419.LX.M0Z.UNOFFICIAL
Create hunting rule

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

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

Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135965-0
Create hunting rule

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

Unix.Dropper.Mirai-7136034-0
Create hunting rule

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

Unix.Dropper.Mirai-7136070-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10017641-0
Create hunting rule

Unix.Trojan.Mirai-10027280-0
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
botnet masquerade mirai mirai obfuscated
Link:
https://www.filescan.io/uploads/694b81f03f8fdbf8e950c20c/reports/f79d70bb-1a3e-4488-9d7a-443c5b96b3ea/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f3bcc47e-2873-4cc0-9196-c01ef80d0a9d
Behavior Graph:
Download SVG
%3 guuid=e71b9d9d-1800-0000-4a5f-532b84060000 pid=1668 /usr/bin/sudo guuid=19cfe89f-1800-0000-4a5f-532b8b060000 pid=1675 /tmp/sample.bin guuid=e71b9d9d-1800-0000-4a5f-532b84060000 pid=1668->guuid=19cfe89f-1800-0000-4a5f-532b8b060000 pid=1675 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c0ac3014-d271-4d7f-8f63-61e2a97e69eb
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1838629
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-24 06:02:28 UTC
File Type:
ELF32 Big (Exe)
AV detection:
25 of 36 (69.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zku2bsa3bzx2cjravrw7ted5pxrj373ghntzhyyllhgoe7h2t3ya._file
Gathering data
Verdict:
Malicious
Tags:
botnet mirai trojan Unix.Trojan.Mirai-7100807-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_2 Mirai_Botnet_Malware Linux_Trojan_Mirai_0bce98a2
Link:
https://app.threat.zone/submission/72c4f746-d9e0-45b8-a1e8-26e2f10028af
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0

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_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 caa9a0c81b0e6fa12620ac6df9907d7de29dff663b6793e30b59cce27cfa9ef0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3735492/
  
Delivery method
Distributed via web download

Comments