MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27
SHA3-384 hash: 093174d01445cf40845abb9065b4bd0b9227142c0b59572d269f68fdece38e8ee6b6a8abd2889d354533bf1cd6f8bd1f
SHA1 hash: 5049abcc9f1efbad498ef4cc656fda764e149a53
MD5 hash: 79190736e65e2cd1a001359854fbf04c
humanhash: uranus-texas-happy-music
File name:putita.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:64'928 bytes
First seen:2026-07-12 02:36:40 UTC
Last seen:2026-07-13 00:57:23 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:ipcA4IMaChjt8H0biyah7WS8xV3TInY6Tc+6p40pQE:lGGhY0bi6xlInY6QFp40pQE
TLSH T1465312B69F449C01CE79D2F81ABA4DBB8FA9203F405547EF8EA0499467FE878D510827
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 UPX
File size (compressed) :64'928 bytes
File size (de-compressed) :142'640 bytes
Format:linux/mipsel
Unpacked file: 19fca0c2200f6443cd0bcb954503a677eaef23bb5edf3025690e768d67255f3d

Intelligence

File Origin
# of uploads :
3
# of downloads :
75
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/21c48c41-34ec-441c-8ccc-f6addf1bf71e/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creates or modifies symbolic links
Creating a file
Sends data to a server
Connection attempt
Receives data from a server
Changes access rights for a written file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Runs as daemon
Opens a port
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Unknown
File Type:
elf.32.le
First seen:
2026-07-11T23:42:00Z UTC
Last seen:
2026-07-13T23:03:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/86f29ee2-b58f-4578-b60c-226ebbe5ac5f
Behavior Graph:
Download SVG
%3 guuid=9c721d6a-1a00-0000-100b-fbe8620f0000 pid=3938 /usr/bin/sudo guuid=b449d36c-1a00-0000-100b-fbe8700f0000 pid=3952 /tmp/sample.bin guuid=9c721d6a-1a00-0000-100b-fbe8620f0000 pid=3938->guuid=b449d36c-1a00-0000-100b-fbe8700f0000 pid=3952 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ea58e11e-e48e-42fe-90da-1f3e23e5b26e
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1941084
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Protects files from modification
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1941084 Sample: putita.mpsl.elf Startdate: 12/07/2026 Architecture: LINUX Score: 80 84 64.89.163.215, 46084, 46086, 46088 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->84 86 Sample is packed with UPX 2->86 14 putita.mpsl.elf 2->14         started        signatures3 process4 file5 76 /usr/lib/kworker-helper, ELF 14->76 dropped 78 /root/.bashrc, ASCII 14->78 dropped 80 /etc/systemd/system/kworker-helper.service, ASCII 14->80 dropped 82 3 other malicious files 14->82 dropped 96 Sample tries to set files in /etc globally writable 14->96 98 Sample tries to persist itself using /etc/profile 14->98 100 Drops files in suspicious directories 14->100 102 3 other signatures 14->102 18 putita.mpsl.elf sh 14->18         started        20 putita.mpsl.elf 14->20         started        22 putita.mpsl.elf sh 14->22         started        24 6 other processes 14->24 signatures6 process7 signatures8 27 sh crontab 18->27         started        31 sh 18->31         started        33 putita.mpsl.elf 20->33         started        35 putita.mpsl.elf 20->35         started        37 putita.mpsl.elf 20->37         started        39 sh crontab 22->39         started        88 Protects files from modification 24->88 process9 file10 74 /var/spool/cron/crontabs/tmp.hi2CKo, ASCII 27->74 dropped 92 Sample tries to persist itself using cron 27->92 94 Executes the "crontab" command typically for achieving persistence 27->94 41 sh crontab 31->41         started        44 putita.mpsl.elf kworker-helper 33->44         started        46 putita.mpsl.elf kworker-helper 33->46         started        signatures11 process12 signatures13 90 Executes the "crontab" command typically for achieving persistence 41->90 48 kworker-helper 44->48         started        50 kworker-helper 46->50         started        process14 process15 52 kworker-helper 48->52         started        54 kworker-helper 48->54         started        56 kworker-helper 48->56         started        58 kworker-helper 50->58         started        60 kworker-helper 50->60         started        62 kworker-helper 50->62         started        process16 64 kworker-helper kworker-helper 52->64         started        process17 66 kworker-helper 64->66         started        process18 68 kworker-helper 66->68         started        70 kworker-helper 66->70         started        72 kworker-helper 66->72         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-07-12 02:52:30 UTC
AV detection:
4 of 24 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tz5nt5tbeiv2wwdhw65lkcq5f6pkqv6i6psxx7ipo6grl4g34tq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260712-c4fp9sbz6q/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
UPX packed file
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
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/f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27

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: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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 f4f3d6cfb309115d5ac33dbdd5a850e97cf542be479f2bdfe87bbc68af86df27

(this sample)

Mirai

elf 19fca0c2200f6443cd0bcb954503a677eaef23bb5edf3025690e768d67255f3d

  
URLhaus
https://urlhaus.abuse.ch/url/3885284/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 19fca0c2200f6443cd0bcb954503a677eaef23bb5edf3025690e768d67255f3d
  
Dropping
MD5 4768f2aa106a18a13ded44b3b19b6dc0

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