MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2
SHA3-384 hash: f247874615304a6c927c44176050be1ac95cdfd907eae708f7ade441235e2ec581612df0beb1de826623c6c4d3699ed9
SHA1 hash: 1970975f00a49423dd899255f5899f212dda5e82
MD5 hash: d65d4a805ea1b3f1f289e7d73f509e79
humanhash: idaho-kansas-nitrogen-pasta
File name:main_mips
Download: download sample
Signature Mirai
Create hunting rule
File size:181'920 bytes
First seen:2025-08-02 15:15:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:mEbGrqdU4zcUnElEgSuE/nU+hNxmiiDIS24a/PIcet/D4+1lFTVcEQE3pCU4Nn:H7U4zLO+FxMii8STanIx/DZ45E38hNn
TLSH T1A904A91E6E228F7EF768823447F79A25975823D523D1E684E2ACC1101F6029E651FFEC
telfhash t1314190180a7813a4a3386c5d49ddef37d6a331df7f162d378e11e86aab69a835d11c0c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-8041698-0
Create hunting rule

Unix.Trojan.Mirai-10056427-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Locks files
Connection attempt
Runs as daemon
Creating a file
Sends data to a server
Substitutes an application name
Traces processes
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/688e2bc832e61090868b230b/reports/7067b277-a162-4545-b1be-dd6d8a83f0ab/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
37
Number of processes launched:
300
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2
Behaviour
Process Renaming
Anti-Debugging
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6e9a054a-7998-43b1-ab69-617ce3218bd4
Behavior Graph:
Download SVG
%3 guuid=f056c32a-1a00-0000-60b2-98a9620d0000 pid=3426 /usr/bin/sudo guuid=c23b022d-1a00-0000-60b2-98a9690d0000 pid=3433 /tmp/sample.bin guuid=f056c32a-1a00-0000-60b2-98a9620d0000 pid=3426->guuid=c23b022d-1a00-0000-60b2-98a9690d0000 pid=3433 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/19037127-cb16-4367-bfd4-fbc9076aa11d
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1749089
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-02 15:16:23 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5473x67vqxovyr3iwqe4yb7sys7sxlg4aa47fmqtutva7b6xbwra._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery
Link:
https://tria.ge/reports/250802-snljkstrt8/
Behaviour
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Reads process memory
Enumerates running processes
Deletes itself
Traces itself
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-8041698-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/5aa8a8f9-1f9f-4268-b714-05ce9c470d6d
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/ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
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 ef3fbbfbf585dd5c4768b409cc07f2c4bf2bacdc0039f2b213a4ea0f87d70da2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3595177/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments