MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591
SHA3-384 hash: 3d0c60d0249df572b40497996109d08fb4624c602f5652b0460db7ebf32b7fc7fcb417127a29394f2793b20d06e2adac
SHA1 hash: 40956a189913553f71670e5d444660f1c7600ef9
MD5 hash: d5b6addf566227ebe3143615201dc819
humanhash: aspen-freddie-india-delta
File name:nabarm5
Download: download sample
Signature Mirai
Create hunting rule
File size:55'524 bytes
First seen:2026-01-25 23:47:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Tq5ciTVj29hjq2DptFYt9z5IIe5vBaq1ukGQ7Nm1X:TDi5YhjqWFK576l1ufG41X
TLSH T1B7430955B9859616CAC46577FF0F429D371A43F8E2FE73039D296F25238B82B0E3A841
telfhash t15141ff494e880fdc77e08b4683ce622aa9a534b9b71115599f2f2b4f4357ed23416437
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 :
70
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9885259-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai rust
Link:
https://www.filescan.io/uploads/6976ab8b55805a763ff57660/reports/2ea08285-348f-43e2-9078-ce52fd0b6e3b/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4b68cbeb-baaf-4fbc-af64-1f4f74c91fb8
Behavior Graph:
Download SVG
%3
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fe3f18c0-6457-41da-9fc0-a1533f668419
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1857318
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857318 Sample: nabarm5.elf Startdate: 26/01/2026 Architecture: LINUX Score: 68 58 178.243.36.241, 23 TURKCELL-ASTurkcellASTR Turkey 2->58 60 178.243.36.242, 23 TURKCELL-ASTurkcellASTR Turkey 2->60 62 100 other IPs or domains 2->62 66 Multi AV Scanner detection for submitted file 2->66 68 Connects to many IPs within the same subnet mask (likely port scanning) 2->68 8 nabarm5.elf .systemd-journald 2->8         started        12 systemd gpu-manager 2->12         started        14 systemd gpu-manager 2->14         started        16 49 other processes 2->16 signatures3 process4 file5 56 /dev/shm/.systemd-journald, ELF 8->56 dropped 70 Drops invisible ELF files 8->70 72 Sample deletes itself 8->72 18 .systemd-journald 8->18         started        21 gpu-manager sh 12->21         started        23 gpu-manager sh 12->23         started        31 4 other processes 12->31 33 6 other processes 14->33 74 Sample reads /proc/mounts (often used for finding a writable filesystem) 16->74 25 gpu-manager sh 16->25         started        27 gpu-manager sh 16->27         started        29 gpu-manager sh 16->29         started        35 48 other processes 16->35 signatures6 process7 signatures8 64 Sample tries to kill multiple processes (SIGKILL) 18->64 47 2 other processes 18->47 37 sh grep 21->37         started        39 sh grep 23->39         started        41 sh grep 25->41         started        43 sh grep 27->43         started        45 sh grep 29->45         started        50 4 other processes 31->50 52 6 other processes 33->52 54 37 other processes 35->54 process9 signatures10 76 Sample tries to kill multiple processes (SIGKILL) 47->76
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-25 23:47:37 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=l354nsob364qd35hr57evmqgbcq5u53s5umlcwiszkpzhlip2wiq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260125-3s2fpsdw2b/
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/5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591

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 5efbc6c9c1dfb901efa78f7e4ab20608a1da7772ed18b15912ca9f93ad0fd591

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3740301/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739227/

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