MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e
SHA3-384 hash: af4a3b3e7acfa38754800f25505f9744c7519d0c3f6c87982669928fc93a3d0c360ea9901b22891da68c1a502d677b8d
SHA1 hash: ea1a158d836937efbdd93de14deb474724e94a02
MD5 hash: fd6f57843dc972cde2020742d28fe910
humanhash: dakota-april-twelve-romeo
File name:putita.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:61'492 bytes
First seen:2026-08-06 01:24:41 UTC
Last seen:2026-08-06 14:00:57 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 768:lN+L/obPEAHI4Xm6JEDt6JCKClfzfLLRcTeexQ44nM3+xFmfX+v6QVuB/GwrcEgF:l2335cofjROe9vMvPlNqA+Inouy8DMl
TLSH T1535302DEB7CD9BFCD6BF047491AAF82F2428E67A12045CD5F7AC50FDB480E68101424A
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) :61'492 bytes
File size (de-compressed) :144'764 bytes
Format:linux/i386
Unpacked file: 424b4e38d6f73cc6f7c45b03d604e0d921ac815dfb88e0e492a15a4fe535d9f3

Intelligence

File Origin
# of uploads :
2
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/cf0ee262-5d02-494b-a70c-708d32bc3f81/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creates or modifies symbolic links
Creating a file
Connection attempt
Sets a written file as executable
Changes access rights for a written file
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:
Malicious
File Type:
elf.32.le
First seen:
2026-08-05T23:37:00Z UTC
Last seen:
2026-08-06T01:11:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9bd8c6a7-e9b4-419e-baa6-7cdcf27aaf45
Behavior Graph:
Download SVG
%3 guuid=8594d58a-1b00-0000-cb4b-b11b02090000 pid=2306 /usr/bin/sudo guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314 /tmp/sample.bin delete-file net write-config write-file guuid=8594d58a-1b00-0000-cb4b-b11b02090000 pid=2306->guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a2c64c8f-1b00-0000-cb4b-b11b0f090000 pid=2319 /usr/bin/dash guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=a2c64c8f-1b00-0000-cb4b-b11b0f090000 pid=2319 execve guuid=1003828f-1b00-0000-cb4b-b11b10090000 pid=2320 /usr/bin/dash guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=1003828f-1b00-0000-cb4b-b11b10090000 pid=2320 execve guuid=4c5d0894-1b00-0000-cb4b-b11b1e090000 pid=2334 /usr/bin/chattr zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=4c5d0894-1b00-0000-cb4b-b11b1e090000 pid=2334 execve guuid=67441194-1b00-0000-cb4b-b11b1f090000 pid=2335 /usr/bin/chattr zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=67441194-1b00-0000-cb4b-b11b1f090000 pid=2335 execve guuid=1b111894-1b00-0000-cb4b-b11b20090000 pid=2336 /usr/bin/chattr zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=1b111894-1b00-0000-cb4b-b11b20090000 pid=2336 execve guuid=cb152094-1b00-0000-cb4b-b11b21090000 pid=2337 /usr/bin/busybox zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=cb152094-1b00-0000-cb4b-b11b21090000 pid=2337 execve guuid=9c582594-1b00-0000-cb4b-b11b22090000 pid=2338 /usr/bin/busybox zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=9c582594-1b00-0000-cb4b-b11b22090000 pid=2338 execve guuid=44ea2a94-1b00-0000-cb4b-b11b23090000 pid=2339 /usr/bin/busybox zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=44ea2a94-1b00-0000-cb4b-b11b23090000 pid=2339 execve guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340 /tmp/sample.bin net send-data zombie guuid=8b898f8d-1b00-0000-cb4b-b11b0a090000 pid=2314->guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340 clone guuid=eee9ac8f-1b00-0000-cb4b-b11b12090000 pid=2322 /usr/bin/dash guuid=1003828f-1b00-0000-cb4b-b11b10090000 pid=2320->guuid=eee9ac8f-1b00-0000-cb4b-b11b12090000 pid=2322 clone guuid=4443b28f-1b00-0000-cb4b-b11b13090000 pid=2323 /usr/bin/dash guuid=1003828f-1b00-0000-cb4b-b11b10090000 pid=2320->guuid=4443b28f-1b00-0000-cb4b-b11b13090000 pid=2323 clone guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 706d8119-5804-563f-93fb-1ad04086f3d8 64.89.163.215:666 guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340->706d8119-5804-563f-93fb-1ad04086f3d8 send: 87B guuid=276ffc94-1b00-0000-cb4b-b11b25090000 pid=2341 /tmp/sample.bin guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340->guuid=276ffc94-1b00-0000-cb4b-b11b25090000 pid=2341 clone guuid=48880095-1b00-0000-cb4b-b11b26090000 pid=2342 /tmp/sample.bin guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340->guuid=48880095-1b00-0000-cb4b-b11b26090000 pid=2342 clone guuid=91260895-1b00-0000-cb4b-b11b27090000 pid=2343 /tmp/sample.bin guuid=4ad73294-1b00-0000-cb4b-b11b24090000 pid=2340->guuid=91260895-1b00-0000-cb4b-b11b27090000 pid=2343 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e517e7e-cefc-4fa0-9af5-20ea3590a32d
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1953046
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: 1953046 Sample: putita.x86.elf Startdate: 06/08/2026 Architecture: LINUX Score: 80 49 64.89.163.215, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Sample is packed with UPX 2->53 9 putita.x86.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.x86.elf sh 9->13         started        15 putita.x86.elf sh 9->15         started        17 putita.x86.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.x86.elf 20->30         started        32 putita.x86.elf 20->32         started        34 putita.x86.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.I7IPDJ, 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/57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k4sv3urbgi7p75umwpyaoehnystlibhlavq6jh5ahuvswhobmopa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/260806-btevjswshv/
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/57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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 57255dd221323efff68cb3f00710edc4a6b404eb0561e49fa03d2b2b1dc1639e

(this sample)

Mirai

elf 424b4e38d6f73cc6f7c45b03d604e0d921ac815dfb88e0e492a15a4fe535d9f3

  
URLhaus
https://urlhaus.abuse.ch/url/3892146/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3892126/
  
Dropping
SHA256 424b4e38d6f73cc6f7c45b03d604e0d921ac815dfb88e0e492a15a4fe535d9f3
  
Dropping
MD5 8c7915c5481e6e8a699d09ce5debc26f
  
URLhaus
https://urlhaus.abuse.ch/url/3885283/

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