MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a8ec0af1638935637d17fdfc0d3ac48ab2cd59dbb385e24afc7e32e0fc49b0d. 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 3 File information Comments

SHA256 hash: 8a8ec0af1638935637d17fdfc0d3ac48ab2cd59dbb385e24afc7e32e0fc49b0d
SHA3-384 hash: c370bdd05170ed289accb4b04e85e9a15ba4daf45e919afbe9a838b22c7da5b5e96b2e9f6cd8f0dcc512ab2de38bdcfd
SHA1 hash: 3a62293eb83185f03fcbb90edc626c69a08add19
MD5 hash: 60f9effabcc1878d60f1cf28c410804b
humanhash: magnesium-pluto-early-wisconsin
File name:putita.mpsl
Download: download sample
Signature Mirai
File size:140'004 bytes
First seen:2026-08-24 15:20:33 UTC
Last seen:2026-08-25 17:09:53 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:8HawOSO2uMoKGNZcIGHtWZBfRENBxmls86IKEgy0RomNz0P:8qnVMothGODE4+2sW
TLSH T198D3121DFC7087BCF2725AB07B136A364033CB6E9EBA0F775A6457B85982495CD108AC
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :140'004 bytes
File size (de-compressed) :287'384 bytes
Format:linux/mipsel
Unpacked file: 41ceaf7915fb607afcc0d34043817aab3c81b41b81731901c43e87d93729d600

Intelligence


File Origin
# of uploads :
3
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Sets a written file as executable
Runs as daemon
Creates or modifies symbolic links
Changes the time when the file was created, accessed, or modified
Opens a port
Connection attempt
Launching a process
Changes access rights for a written file
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-24T13:31:00Z UTC
Last seen:
2026-08-25T23:28:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=4612aadf-1a00-0000-983e-30ddfb070000 pid=2043 /usr/bin/sudo guuid=9d715ee7-1a00-0000-983e-30dd0c080000 pid=2060 /tmp/sample.bin guuid=4612aadf-1a00-0000-983e-30ddfb070000 pid=2043->guuid=9d715ee7-1a00-0000-983e-30dd0c080000 pid=2060 execve
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
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
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1962881 Sample: putita.mpsl.elf Startdate: 24/08/2026 Architecture: LINUX Score: 96 53 185.165.50.30, 80 STELIAGB United States 2->53 55 64.89.163.215, 36078, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->55 59 Multi AV Scanner detection for submitted file 2->59 61 Yara detected Mirai 2->61 63 Sample is packed with UPX 2->63 9 putita.mpsl.elf 2->9         started        signatures3 process4 file5 45 /usr/lib/kworker-helper, ELF 9->45 dropped 47 /root/.bashrc, ASCII 9->47 dropped 49 /etc/systemd/system/kworker-helper.service, ASCII 9->49 dropped 51 3 other malicious files 9->51 dropped 71 Sample tries to set files in /etc globally writable 9->71 73 Sample tries to persist itself using /etc/profile 9->73 75 Drops files in suspicious directories 9->75 77 3 other signatures 9->77 13 putita.mpsl.elf sh 9->13         started        15 putita.mpsl.elf sh 9->15         started        17 putita.mpsl.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        57 Protects files from modification 17->57 30 putita.mpsl.elf 20->30         started        32 putita.mpsl.elf 20->32         started        34 putita.mpsl.elf 20->34         started        36 putita.mpsl.elf 20->36         started        process9 file10 43 /var/spool/cron/crontabs/tmp.wpnjEy, ASCII 22->43 dropped 67 Sample tries to persist itself using cron 22->67 69 Executes the "crontab" command typically for achieving persistence 22->69 38 sh crontab 26->38         started        41 putita.mpsl.elf 30->41         started        signatures11 process12 signatures13 65 Executes the "crontab" command typically for achieving persistence 38->65
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-08-24 16:11:02 UTC
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
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.

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
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
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 8a8ec0af1638935637d17fdfc0d3ac48ab2cd59dbb385e24afc7e32e0fc49b0d

(this sample)

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