MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa
SHA3-384 hash: d508dd16a9635fb5fbaa81e535881cc20e8fcbf7f7b743b46729f199ee68f7b31636627082bc0d8574be97e331f9de07
SHA1 hash: f9669f857a1fa6df442ef937e11723f1327a5cd2
MD5 hash: d22ef56994b0ed2d4b23e01504aeb87a
humanhash: california-king-alaska-video
File name:titanjr.i486
Download: download sample
Signature Mirai
Create hunting rule
File size:78'900 bytes
First seen:2026-03-03 13:55:02 UTC
Last seen:2026-03-04 12:45:23 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:YpdkzMvvGvNXHf8fq83cfKodtauUU31AAasr:8yzuu5Hf8fLWRKQ
TLSH T1D9735B85EB57D4F0D94609B011ABFB39DA30DD362014DD6BEB98FD72BC32642901A7AC
telfhash t15e31c5fa0efe1de4a7d45c00c15e6fe50a29e63b245076a34372e90117abf42903bc39
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 :
3
# of downloads :
71
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/8298006c-2ca8-430f-9b1b-94e9d43a12e2/
Detection(s):
Unix.Trojan.Mirai-10058414-0
Create hunting rule

Unix.Trojan.Mirai-10058922-0
Create hunting rule

Unix.Trojan.Mirai-10059005-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Deleting a recently created file
Sends data to a server
Launching a process
Receives data from a server
Sets a written file as executable
Runs as daemon
Deletes a file
DNS request
Substitutes an application name
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade rust
Link:
https://www.filescan.io/uploads/69a6e859cd25bfe1dfdf2764/reports/a5550ca4-949d-49b0-bcb5-7ef3f3aecb7d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
11
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
Link:
https://opentip.kaspersky.com/b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d6782aa0-4d2d-4e64-bbd9-38da8fd804e5
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1877471
Signature
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1877471 Sample: titanjr.i486.elf Startdate: 03/03/2026 Architecture: LINUX Score: 76 29 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Multi AV Scanner detection for submitted file 2->33 10 titanjr.i486.elf 2->10         started        signatures3 process4 process5 12 titanjr.i486.elf 10->12         started        process6 14 titanjr.i486.elf 12->14         started        file7 27 /etc/init.d/sysd, POSIX 14->27 dropped 39 Sample tries to set files in /etc globally writable 14->39 41 Drops files in suspicious directories 14->41 43 Sample tries to persist itself using System V runlevels 14->43 18 titanjr.i486.elf 14->18         started        20 titanjr.i486.elf sh 14->20         started        signatures8 process9 process10 22 titanjr.i486.elf 18->22         started        25 sh cp 20->25         started        signatures11 35 Manipulation of devices in /dev 22->35 37 Deletes system log files 22->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-03 13:55:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwq7kpf34o2c6k2cc2cl53ixzxv6ygc7yjutdwjq57ouoggpq35a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery linux persistence
Link:
https://tria.ge/reports/260303-q8cq3ahz9x/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Modifies init.d
Modifies rc script
Deletes Audit logs
Deletes journal logs
Deletes system logs
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.26
Link:
https://yomi.yoroi.company/submissions/b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa

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_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:Linux_Trojan_Mirai_3a56423b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6e8e9257
Create hunting rule
Author:Elastic Security
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 b5a1f53cbbe3b42f2b421684beed17cdebec185fc26931d930efdd4718cf86fa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3789074/
  
Delivery method
Distributed via web download

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