MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f
SHA3-384 hash: 35576120551d6053339a526ff74d37a94869abe9cdac7559601859d3e3380f2cb4cbace3398d01cc233152c33d5507e7
SHA1 hash: a0dd1640d47edbad153207a09c2d4c7b353cbfec
MD5 hash: 6d81d76b1875bde8ab36ec27c80ea76e
humanhash: utah-salami-south-equal
File name:nabx86
Download: download sample
Signature Mirai
Create hunting rule
File size:54'192 bytes
First seen:2025-12-25 06:31:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:imO8+e0hzlRQXQxg6NyyWA16G8pQuoA4I8RQMu2ExJZvvfd+n9VrCx:ir87WzlRQf6UDpoAt86MuVx39aVr8
TLSH T168335CCA9A43D5F1EC15057110ABA7739B33E93610B9EBDBE790993AFD13601B20639C
telfhash t11221327b8e7208f8b3d47844674a53171a3aca332a6037f64473add422e25c2807ec35
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 :
65
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/694cda6fa7163552ba04c776/reports/ed222df9-2b0e-462b-84f3-1deb7e29d4c7/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-25T03:40:00Z UTC
Last seen:
2025-12-26T23:49:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5d28bbe7-5deb-451f-bb92-c20444bf10c3
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1839218
Signature
Antivirus / Scanner detection for submitted sample
Connects to many IPs within the same subnet mask (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839218 Sample: nabx86.elf Startdate: 25/12/2025 Architecture: LINUX Score: 68 24 175.208.201.67, 23 KIXS-AS-KRKoreaTelecomKR Korea Republic of 2->24 26 79.22.92.64, 23 ASN-IBSNAZIT Italy 2->26 28 100 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Connects to many IPs within the same subnet mask (likely port scanning) 2->36 8 nabx86.elf 2->8         started        10 dash rm 2->10         started        12 dash cat 2->12         started        14 8 other processes 2->14 signatures3 process4 process5 16 nabx86.elf 8->16         started        process6 18 nabx86.elf 16->18         started        20 nabx86.elf 16->20         started        22 nabx86.elf 16->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Suspicious
First seen:
2025-12-25 06:32:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ywr7oiwjrdi4venxp2x4chk3z534hj5sxddpfyv36h4b2hfflehq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Link:
https://tria.ge/reports/251225-haa6ksfp6v/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Creates a large amount of network flows
Enumerates active TCP sockets
Enumerates running processes
Renames itself
Contacts a large (6126) amount of remote hosts
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-7755770-0
YARA:
Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/29cf66bc-9b1c-426b-b818-0ec800557bbe
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f

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_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 c5a3f722c988d1ca91b77eafc11d5bcf77c3a7b2b8c6f2e2bbf1f81d1ca5590f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739147/
  
Delivery method
Distributed via web download

Comments