MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da
SHA3-384 hash: 0297305ba7589ae728df5ba58693daa65102bb852e6a98358783b851145e5af4c9141ccd373bd40f64fa203fe811742c
SHA1 hash: 9a09d478a8d1eb7262027ddabce1ae6b9f547028
MD5 hash: 3162942c1d3c0f31b43cc2ba60571162
humanhash: harry-charlie-cat-charlie
File name:nabx86
Download: download sample
Signature Mirai
Create hunting rule
File size:55'632 bytes
First seen:2025-12-26 18:19:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:X+l+1Fw4z9b7RJdJysHfkwJFPVbK66AWHYxk3XzxFF3UqucxJ49sR9+fFHXRR:XUew4z9b7Os/Z7b63Xt4qucxiSKHXRR
TLSH T109435CC9CA83D8B6EC58197118ABB7729BF3E53510F4DF82E7949532B81E112B14B39C
telfhash t10c21e5bb0da648bd73d4a901c30e2be6197aca371a6039f54133ae9433d2d91907cc3e
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 :
33
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.Mirai-10008934-0
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/694ed1e43f8fdbf8e952dbc7/reports/c1197b0c-eee2-4ca6-a739-d0521fd02fbb/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4321ea02-f96f-405b-b272-ecf4eab6a9a0
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1839881
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
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839881 Sample: nabx86.elf Startdate: 26/12/2025 Architecture: LINUX Score: 76 18 39.34.0.110, 23 PKTELECOM-AS-PKPakistanTelecomCompanyLimitedPK Pakistan 2->18 20 39.34.0.113, 23 PKTELECOM-AS-PKPakistanTelecomCompanyLimitedPK Pakistan 2->20 22 100 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 2 other signatures 2->30 8 nabx86.elf 2->8         started        signatures3 process4 process5 10 nabx86.elf 8->10         started        process6 12 nabx86.elf 10->12         started        14 nabx86.elf 10->14         started        16 nabx86.elf 10->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-26 18:20:25 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehnyd4fpawd7ybzonu3pz4v24pjgpcgaestkx5373k52gq2jjdna._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Link:
https://tria.ge/reports/251226-wywn3sfp3s/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Renames itself
Contacts a large (2704) amount of remote hosts
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da

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 21db81f0af0587fc072e6d36fcf2bae3d26788c024a6abf77fdabba3434948da

(this sample)

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

Comments