MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49. 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: b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49
SHA3-384 hash: 62bf19e5ca3dba1380dc0ffb4a490251b79f347390577923b74dc553f403856189b7ac2bc989f7251ccd088db30d39e9
SHA1 hash: e05025adaf8d204a7369b699eafac52205414031
MD5 hash: a3f9ecfddcc355d142f6a7335b853504
humanhash: emma-three-item-floor
File name:putita.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:124'344 bytes
First seen:2026-08-06 01:28:42 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:GMS8HWIzZvDVsINudJj+3scYEEU3cRE4fOAvLSKykdGER6U1yGk1lf1Dl:GLMnlUQscYEEU3cRE4GsLLVdGM1l4l95
TLSH T180C329A9F890DE52C6C52676FB5E028C33231778D3DE7105CE109E34F7EB95A0A3A942
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd
File size (compressed) :55'924 bytes
File size (de-compressed) :124'344 bytes
Format:linux/arm
Packed file: 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Siggen.14221.18926.29654.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Launching a process
Connection attempt
Runs as daemon
Changes the time when the file was created, accessed, or modified
Changes access rights for a written file
Creating a file
Creates or modifies symbolic links
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files to set up autorun
Deleting of the original file
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc masquerade mirai rust
Link:
https://www.filescan.io/uploads/6a73e375e3677697793ee1b7/reports/ab75df26-9e40-424a-b616-86ecb2137def/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-05T23:42:00Z UTC
Last seen:
2026-08-07T22:48:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1ea583e7-7d05-45f4-8ec4-32eab5b99c0f
Behavior Graph:
Download SVG
%3 guuid=58a8aa4b-1a00-0000-b5ed-7f66b30c0000 pid=3251 /usr/bin/sudo guuid=b12eed4d-1a00-0000-b5ed-7f66b90c0000 pid=3257 /tmp/sample.bin guuid=58a8aa4b-1a00-0000-b5ed-7f66b30c0000 pid=3251->guuid=b12eed4d-1a00-0000-b5ed-7f66b90c0000 pid=3257 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a4d9143e-e4dc-45ff-9831-ea383071798c
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1953043
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 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: 1953043 Sample: putita.arm5.elf Startdate: 06/08/2026 Architecture: LINUX Score: 100 49 64.89.163.215, 33758, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Antivirus detection for dropped file 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 Multi AV Scanner detection for submitted file 2->57 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 65 Sample tries to set files in /etc globally writable 9->65 67 Sample tries to persist itself using /etc/profile 9->67 69 Drops files in suspicious directories 9->69 71 3 other signatures 9->71 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.ZkAyUP, ASCII 22->39 dropped 61 Sample tries to persist itself using cron 22->61 63 Executes the "crontab" command typically for achieving persistence 22->63 36 sh crontab 26->36         started        signatures11 process12 signatures13 59 Executes the "crontab" command typically for achieving persistence 36->59
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-06 01:29:33 UTC
File Type:
ELF32 Little (SO)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wuvwawzc4sl4vjutboomi3p7fpqy5l3d3t34eitja3p4kekpfneq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion execution persistence privilege_escalation
Link:
https://tria.ge/reports/260806-bwhdfswtd1/
Behaviour
Changes its process name
Modifies Bash startup script
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/b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd

Mirai

elf b52b605b22e497caa6930b9cc46dff2be18eaf63dcf7c2226906dfc5114f2b49

(this sample)

  
Dropped by
SHA256 97a04076d3b1d8845c64d8087f6b879def4560566e2376372d728529dc837cfd
  
URLhaus
https://urlhaus.abuse.ch/url/3892132/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 d65b60667dcdbfc734995aae0c25ef93
  
URLhaus
https://urlhaus.abuse.ch/url/3885288/
  
URLhaus
https://urlhaus.abuse.ch/url/3892139/

Comments