MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 657f9635d1d880f6d4dbfb061f0a665fd0a111c09f18b370831adac5cbedf85a. 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: 657f9635d1d880f6d4dbfb061f0a665fd0a111c09f18b370831adac5cbedf85a
SHA3-384 hash: fd9abb1611e3bf850b57e8506363ef4426c42e05dabcb7d82254bd898fba746f276335774a9c5d6f4f437e9d139bbe6a
SHA1 hash: f78696f96bb0cf70f751a3624fa0f590ac7022b4
MD5 hash: bc083e17ba1c547d66929976d676f256
humanhash: single-thirteen-two-alanine
File name:morte.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:46'728 bytes
First seen:2025-12-03 23:56:04 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:SVBV2mJB7+0d8IGUS72l6X3i9aZKbsWcGnJpFqqbw6ohD6mNQ1b/k0bdKnbcuyD/:SV6mJB7+k8Ie2l6XLZKYWcGJvqmszG13
TLSH T16023F13770A44554DE3E8C7411EF7A1E8066C22956211DEE5CC5836A8B8EF3B732DECA
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 UPX
File size (compressed) :46'728 bytes
File size (de-compressed) :116'624 bytes
Format:linux/i386
Unpacked file: 4919eb764f328e68e20c3104edb426501fdd566ec3c87207e86818ed91736db2

Intelligence

File Origin
# of uploads :
1
# of downloads :
24
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/ab5952b1-cbd5-4582-8732-1a5352f06589/
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Deleting a recently created file
Sends data to a server
Launching a process
Removes directories
Sets a written file as executable
Runs as daemon
DNS request
Substitutes an application name
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6930ce23ff25e40750d2a11e/reports/17235212-c9ac-46c1-86cc-d81600af4d24/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2343664d-b3a5-4c88-8794-cdc02c40a53a
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1825947
Signature
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1825947 Sample: morte.i686.elf Startdate: 04/12/2025 Architecture: LINUX Score: 92 39 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected Mirai 2->45 47 Sample is packed with UPX 2->47 10 morte.i686.elf 2->10         started        12 xfce4-panel wrapper-2.0 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 6 other processes 2->16 signatures3 process4 process5 18 morte.i686.elf 10->18         started        20 wrapper-2.0 xfpm-power-backlight-helper 12->20         started        process6 22 morte.i686.elf 18->22         started        file7 37 /etc/init.d/sysd, POSIX 22->37 dropped 49 Sample tries to set files in /etc globally writable 22->49 51 Drops files in suspicious directories 22->51 53 Sample tries to persist itself using System V runlevels 22->53 26 morte.i686.elf 22->26         started        28 morte.i686.elf sh 22->28         started        signatures8 process9 process10 30 morte.i686.elf 26->30         started        33 morte.i686.elf 26->33         started        35 sh cp 28->35         started        signatures11 55 Manipulation of devices in /dev 30->55 57 Deletes system log files 30->57 59 Sample tries to kill multiple processes (SIGKILL) 33->59
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/657f9635d1d880f6d4dbfb061f0a665fd0a111c09f18b370831adac5cbedf85a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/657f9635d1d880f6d4dbfb061f0a665fd0a111c09f18b370831adac5cbedf85a/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 23:56:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mv7zmnor3capnvg37mdb6ctgl7ikceoat4mlg4eddlnmls7n7bna._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux persistence upx
Link:
https://tria.ge/reports/251203-3y7jxawpfn/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Modifies init.d
Modifies rc script
Deletes Audit logs
Deletes journal logs
Deletes system logs
Mirai
Mirai family
Please note that we are no longer able to provide a coverage score for Virus Total.

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 657f9635d1d880f6d4dbfb061f0a665fd0a111c09f18b370831adac5cbedf85a

(this sample)

Mirai

elf 4919eb764f328e68e20c3104edb426501fdd566ec3c87207e86818ed91736db2

  
URLhaus
https://urlhaus.abuse.ch/url/3720220/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4919eb764f328e68e20c3104edb426501fdd566ec3c87207e86818ed91736db2
  
Dropping
MD5 10cb586aa62cf6e01fa38a95c0241b22

Comments