MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30
SHA3-384 hash: 6435fc4ce5ce394c80df3118dd6460b9e9ab25e0a859d9fa21237787963100d570f4e52682fa33ad56aeef7a12294e93
SHA1 hash: b64d16af725768a681d48a1acfbe298d3d376d3a
MD5 hash: 0db3beb9f15db5cb6a7a71a54abeee72
humanhash: charlie-saturn-spring-wisconsin
File name:shadow.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:73'072 bytes
First seen:2025-12-23 13:51:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:K8MpKyiskYMBLAZ9xryvSMfp3NgBEnFx+QO9tzqLv0BohoW/mv/+OTOrNomdNVjC:jMAyQ7AZUnpwC/47zQF/mv/LAdz7f
TLSH T13263C752B8819117C9D892F7F21E119E331513B8D2EB3303AC356F613689D9F0EA7E5A
telfhash t17f41b96b9b361e9b6bd44644c2cea02b2fdc31051f193c93ca4c6f0b9697682b01fc23
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
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/1bd6772f-4de0-4d5a-89b5-54036c9c7ad4/
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/694a9e8e3f8fdbf8e95001ec/reports/7e853710-cd1e-401a-adf3-0e08aabdae3b/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-23T14:22:00Z UTC
Last seen:
2025-12-24T11:29:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5aa5b68e-1a0a-41c1-b5fd-2795551a6398
Behavior Graph:
Download SVG
%3 guuid=780c6b61-1600-0000-1553-8000950c0000 pid=3221 /usr/bin/sudo guuid=516dbe63-1600-0000-1553-80009d0c0000 pid=3229 /tmp/sample.bin guuid=780c6b61-1600-0000-1553-8000950c0000 pid=3221->guuid=516dbe63-1600-0000-1553-80009d0c0000 pid=3229 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d9cdebd3-bafd-47b7-b523-4d37f319dd4d
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1838242
Signature
Multi AV Scanner detection for submitted file
Performs DNS TXT record lookups
Sample deletes itself
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838242 Sample: shadow.arm5.elf Startdate: 23/12/2025 Architecture: LINUX Score: 64 18 kurol.io 2->18 20 Suricata IDS alerts for network traffic 2->20 22 Multi AV Scanner detection for submitted file 2->22 9 shadow.arm5.elf 2->9         started        signatures3 24 Performs DNS TXT record lookups 18->24 process4 signatures5 26 Sample deletes itself 9->26 12 shadow.arm5.elf 9->12         started        process6 process7 14 shadow.arm5.elf 12->14         started        process8 16 shadow.arm5.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 13:52:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvnjulzoqhnpesimsg54r6fjgy6oufg2qf2j7iatdouakesufmya._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251223-rtjrhaspb1/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-1
YARA:
n/a
Link:
https://app.threat.zone/submission/9df2073b-220a-449a-99ce-ebeae44a894f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30

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_Generic_Threat_d94e1020
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 4d5a9a2f2e81daf2490c91bbc8f8a9363cea14da81749fa0131ba80512542b30

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739063/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739069/
  
URLhaus
https://urlhaus.abuse.ch/url/3742270/
  
URLhaus
https://urlhaus.abuse.ch/url/3742272/

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