MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e
SHA3-384 hash: d2c5c58821f391ac173322dc7e013d9fdc0f5beb7f38daf71950ddebf22c183ce11eb1365bd84edb325299c42ab326b4
SHA1 hash: 668ae11108b43e80811cd5cb41830ca4ec605e35
MD5 hash: 6f2963713b01cd2d4d51c72c9242cad6
humanhash: saturn-oscar-papa-cold
File name:.upstart
Download: download sample
Signature Mirai
Create hunting rule
File size:198'848 bytes
First seen:2025-08-03 07:20:27 UTC
Last seen:2025-08-03 09:21:37 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:wgWKo/tfJI7X2iPTjf5VGKB7FGlPRrR9e1WVVeFxnx0V:wgWKo/c7miLjfz7BwPR9I1qQx0
TLSH T18814D70AAF650EFBDCAFDD3706E90B0529CC641722A83B397674D524F54A50B4AE3C78
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 :
3
# of downloads :
34
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ELF.Mirai-CZE.2767394567.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Changes access rights for a written file
Receives data from a server
Runs as daemon
Connection attempt
Sets a written file as executable
Launching a process
Kills processes
Sends data to a server
Changes access rights for a file
Substitutes an application name
Writes files to system directory
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/688f0dfd32e61090868b8c08/reports/039d8e4e-0657-4974-aa41-8bb43852b340/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c643c3cc-eca9-4f1f-80af-30d81350abbf
Behavior Graph:
Download SVG
%3 guuid=dab77265-1c00-0000-04e1-314955080000 pid=2133 /usr/bin/sudo guuid=45ccf467-1c00-0000-04e1-31495f080000 pid=2143 /tmp/sample.bin guuid=dab77265-1c00-0000-04e1-314955080000 pid=2133->guuid=45ccf467-1c00-0000-04e1-31495f080000 pid=2143 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7701b00c-5ecd-43e1-95f3-8e78d6665f40
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1749350
Signature
Drops files in suspicious directories
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1749350 Sample: .upstart.elf Startdate: 03/08/2025 Architecture: LINUX Score: 68 36 top1miku.duckdns.org 2->36 38 top1miku.duckdns.org 196.251.115.36, 2004, 39460 xneeloZA Seychelles 2->38 40 daisy.ubuntu.com 2->40 42 Multi AV Scanner detection for submitted file 2->42 10 .upstart.elf 2->10         started        12 gnome-session-binary sh gsd-rfkill 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 44 Uses dynamic DNS services 36->44 process4 process5 16 .upstart.elf 10->16         started        18 .upstart.elf 10->18         started        process6 20 .upstart.elf 16->20         started        file7 32 /etc/init.d/sysd, POSIX 20->32 dropped 46 Sample tries to set files in /etc globally writable 20->46 48 Drops files in suspicious directories 20->48 50 Sample tries to persist itself using System V runlevels 20->50 24 .upstart.elf sh 20->24         started        26 .upstart.elf 20->26         started        signatures8 process9 process10 28 sh cp 24->28         started        file11 34 /usr/bin/.sh, ELF 28->34 dropped 52 Drops invisible ELF files 28->52 54 Drops files in suspicious directories 28->54 signatures12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-03 05:43:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l42g3okn25gkt5nzxpxzuowo3zh7krmgrwjqftu6t5vpvxixjq7a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery persistence
Link:
https://tria.ge/reports/250803-h6t9bsysf1/
Behaviour
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6d06a52d-e62e-4c6c-98f0-c4b30d0e7404
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/5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 5f346db94dd74ca9f5b9bbef9a3acede4ff545868d9302ce9e9f6afadd174c3e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3595561/
  
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