MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6. 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: a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6
SHA3-384 hash: 39dfaa8a8bbd206e203b1ef257cf2117caa7566c7d7ca1ce3348fc538f4eaf8ca6ce93a831765d45df17dea66b72f8bb
SHA1 hash: e7942b800bfb3ca434df885e2807485cd09fc5c6
MD5 hash: fd2fe0ba1bfc2d9d3fcfdcd3e5c24c3d
humanhash: butter-romeo-fix-july
File name:nabx86
Download: download sample
Signature Mirai
Create hunting rule
File size:48'116 bytes
First seen:2026-01-24 23:20:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:FOXRP05SC9ItZjwEwViKW/bRKd4jEES+dZZZT3C87e5Qf56qJjMnwg+q2srXfgU:FOXpQ9YsEDKIiyVbxUQf56qi52UXft
TLSH T12B237EC9AB42C5F2FC2600B0607BA7325B72E83A10B6F79AD765D436DC22201B75775D
telfhash t15c21d3b76ea209fcf7d0bd45c32e27e35e35ca77067021b280372a5132f2981917543a
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 :
93
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9885259-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/697553eef3c1b7b1fbdc1082/reports/55fd7c97-b68a-4f3f-b20f-0da6cf64a541/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
47
Number of processes launched:
4
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b127b4c-5ebe-4aa6-884b-3a08f861a5a0
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1857000
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857000 Sample: nabx86.elf Startdate: 25/01/2026 Architecture: LINUX Score: 72 26 116.241.110.195, 23 TBCOM-NETTBCTW Taiwan; Republic of China (ROC) 2->26 28 116.241.148.192, 23 TBCOM-NETTBCTW Taiwan; Republic of China (ROC) 2->28 30 100 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 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 38 Uses known network protocols on non-standard ports 2->38 8 nabx86.elf .systemd-journald 2->8         started        12 systemd snap-failure 2->12         started        signatures3 process4 file5 24 /dev/shm/.systemd-journald, ELF 8->24 dropped 40 Drops invisible ELF files 8->40 42 Sample deletes itself 8->42 14 .systemd-journald 8->14         started        16 snap-failure systemctl 12->16         started        18 snap-failure 12->18         started        signatures6 process7 process8 20 .systemd-journald 14->20         started        22 .systemd-journald 14->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-24 23:21:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=utrthnicbkgvstlzdkpq2f4fslemzsn4w44i2o6ouro4xca6wg3a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260124-3b53kaas7d/
Behaviour
Reads runtime system information
Writes file to shm directory
Creates a large amount of network flows
Enumerates running processes
Deletes itself
Executes dropped EXE
Contacts a large (14676) 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:
0.96
Link:
https://yomi.yoroi.company/submissions/a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6

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_389ee3e9
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 a4e333b5020a8d594d791a9f0d178592c8ccc9bcb7388d3bcea45dcb881eb1b6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739147/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739148/

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