MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd
SHA3-384 hash: 71aa7ac9e151c7dbd1abe3266541b51cf7df3a87b68f018e5815a88968c4c4982951dc88764e06161d7c2e60c92d9663
SHA1 hash: a0465bf8d72f4de589adc86ca7cd9589e64e4930
MD5 hash: d65b60667dcdbfc734995aae0c25ef93
humanhash: enemy-undress-mockingbird-crazy
File name:putita.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:55'924 bytes
First seen:2026-08-06 01:27:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 768:U6h6u1yyGeIYG6mbYyVpR/tG+0zpiPGHF2TT9m1Ok7FyL6qZBtuXNiRuTM0IdZAL:56u1yyGOzYpRlJEHsTxGy5nQXQQT18fa
TLSH T17443F1D34685AEB6C1E9143AE52CF3B674240AB8DDFB3555C52208ED76F92038B72C47
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) :55'924 bytes
File size (de-compressed) :124'344 bytes
Format:linux/arm
Unpacked file: b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/746bff92-6a57-4a94-a7b1-8057d388cb5d/
Detection(s):
SecuriteInfo.com.Linux.Siggen.14220.6987.14775.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creates or modifies symbolic links
Creating a file
Connection attempt
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
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a73e33979688bad9fbfdc4a/reports/113aad9c-a115-40e2-b75f-9f50ea7448ef/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-05T23:38:00Z UTC
Last seen:
2026-08-07T22:22:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d0e09734-54be-407b-927b-b7bb928e9307
Behavior Graph:
Download SVG
%3 guuid=f621fcf9-1700-0000-1324-6b0af50a0000 pid=2805 /usr/bin/sudo guuid=127306fe-1700-0000-1324-6b0afa0a0000 pid=2810 /tmp/sample.bin guuid=f621fcf9-1700-0000-1324-6b0af50a0000 pid=2805->guuid=127306fe-1700-0000-1324-6b0afa0a0000 pid=2810 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f4036401-8cd9-4ef4-8f30-662db1f40e5e
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1953044
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
Multi AV Scanner detection for submitted file
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: 1953044 Sample: putita.arm5.elf Startdate: 06/08/2026 Architecture: LINUX Score: 88 49 64.89.163.215, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Sample is packed with UPX 2->55 9 putita.arm5.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 63 Sample tries to set files in /etc globally writable 9->63 65 Sample tries to persist itself using /etc/profile 9->65 67 Drops files in suspicious directories 9->67 69 3 other signatures 9->69 13 putita.arm5.elf sh 9->13         started        15 putita.arm5.elf sh 9->15         started        17 putita.arm5.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.arm5.elf 20->30         started        32 putita.arm5.elf 20->32         started        34 putita.arm5.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.eiXILb, ASCII 22->39 dropped 59 Sample tries to persist itself using cron 22->59 61 Executes the "crontab" command typically for achieving persistence 22->61 36 sh crontab 26->36         started        signatures11 process12 signatures13 57 Executes the "crontab" command typically for achieving persistence 36->57
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-06 01:28:31 UTC
File Type:
ELF32 Little (SO)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s6qea5wtwhmiixde3aeh624htxxukycwnyrxmnznokcstxedpt6q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260806-bvvx6awtdt/
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/97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd

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 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd

(this sample)

Mirai

elf b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49

  
URLhaus
https://urlhaus.abuse.ch/url/3892132/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49
  
Dropping
MD5 a3f9ecfddcc355d142f6a7335b853504
  
URLhaus
https://urlhaus.abuse.ch/url/3885288/
  
URLhaus
https://urlhaus.abuse.ch/url/3892139/

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