MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6
SHA3-384 hash: 180428279cae857f62812abe1712a769081fac274ab5f62df897ec13ee52dcb98fea843df8086fa3c3ca345392886cfd
SHA1 hash: ddacfd8553bf0c49ea865b005ae9eafdc7e4a760
MD5 hash: aff8eb840cd384dc6e79e95351cd1e2e
humanhash: emma-quebec-kentucky-bluebird
File name:putita.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:55'252 bytes
First seen:2026-07-18 06:44:16 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:gPzaBTUvwvqMkk1zfACwiH8jROmgs7Qn3kxfu:ZuvwiiACwiH8jROp3Cm
TLSH T1CF4301B19109F13AF593D037FEEF8152D95AD96860A13320FC347F1AA272E4651B9CC8
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) :55'252 bytes
File size (de-compressed) :128'452 bytes
Format:linux/arm
Unpacked file: e92df261370f93ef7878cc645b3093799c7b228089c5cad24e55d1fe9055d5f8

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/83851b41-18ec-469d-aaca-332423ea55aa/
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/6a5b20ca88889158278c8b42/reports/88d6046c-202f-45cf-bc6f-8acbfa857960/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
3
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-18T03:37:00Z UTC
Last seen:
2026-07-19T01:56:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4a42c030-c51e-4bc2-9108-104f6a56f196
Behavior Graph:
Download SVG
%3 guuid=3df865eb-1900-0000-16f0-31f5b5090000 pid=2485 /usr/bin/sudo guuid=523d6aed-1900-0000-16f0-31f5ba090000 pid=2490 /tmp/sample.bin guuid=3df865eb-1900-0000-16f0-31f5b5090000 pid=2485->guuid=523d6aed-1900-0000-16f0-31f5ba090000 pid=2490 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4fb0ddbb-2bf6-4e2a-aaa2-d6e1cba6a01f
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1944551
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: 1944551 Sample: putita.arm.elf Startdate: 18/07/2026 Architecture: LINUX Score: 80 49 64.89.163.215, 59572, 59574, 59576 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Sample is packed with UPX 2->53 9 putita.arm.elf 2->9         started        signatures3 process4 file5 41 /usr/lib/kworker-helper, ELF 9->41 dropped 43 /root/.bashrc, ASCII 9->43 dropped 45 /etc/systemd/system/kworker-helper.service, ASCII 9->45 dropped 47 3 other malicious files 9->47 dropped 61 Sample tries to set files in /etc globally writable 9->61 63 Sample tries to persist itself using /etc/profile 9->63 65 Drops files in suspicious directories 9->65 67 3 other signatures 9->67 13 putita.arm.elf sh 9->13         started        15 putita.arm.elf sh 9->15         started        17 putita.arm.elf chattr 9->17         started        20 6 other processes 9->20 signatures6 process7 signatures8 22 sh crontab 13->22         started        26 sh 13->26         started        28 sh crontab 15->28         started        51 Protects files from modification 17->51 30 putita.arm.elf 20->30         started        32 putita.arm.elf 20->32         started        34 putita.arm.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.BgtIN9, ASCII 22->39 dropped 57 Sample tries to persist itself using cron 22->57 59 Executes the "crontab" command typically for achieving persistence 22->59 36 sh crontab 26->36         started        signatures11 process12 signatures13 55 Executes the "crontab" command typically for achieving persistence 36->55
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eeuxpbf3qsuvh5of76rxgzjl4qvod3ono4gkqsbaloflu6knudda._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260718-hhq7rsew7t/
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/21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6

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_arm_mips_ko_so
Create hunting rule
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:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
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 21297784bb84a953f5c5ffa373652be42ae1edcd770ca848205b8aba794da0c6

(this sample)

Mirai

elf e92df261370f93ef7878cc645b3093799c7b228089c5cad24e55d1fe9055d5f8

  
URLhaus
https://urlhaus.abuse.ch/url/3885286/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 e92df261370f93ef7878cc645b3093799c7b228089c5cad24e55d1fe9055d5f8
  
Dropping
MD5 a93de3c0e89eee7db0f2ace67671fe76

Comments