MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c81ed863e2f8dccc8afb7cda8b5d2f34c6fcfc3f018d7baf8a9658b82c362374. 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

SHA256 hash: c81ed863e2f8dccc8afb7cda8b5d2f34c6fcfc3f018d7baf8a9658b82c362374
SHA3-384 hash: 2b16e967aeee244f26d816148daf0075434d2d75f158f3c072d5b459ddb00df7a77ea869c8a415c694a0e13f7445aa46
SHA1 hash: d9cf97ca4e38b5d5d26367cb16c4c2a22169bb6f
MD5 hash: 89ee0c2ed56da7b8acc5475ccb40c2d4
humanhash: island-bravo-october-pluto
File name:putita.mpsl
Download: download sample
Signature Mirai
File size:86'028 bytes
First seen:2026-08-05 06:05:29 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:1aN9Bx0d5v1PjD9OGqAiI+Kunurmyo3zQJ++YRaVSFQztpKRuYvebJ0/u:S9B2bh9mAiImurjwQA++aVSF0tgRuYv6
TLSH T11D8312DB1B1812E4E9522EB7CC72690DD701530BFDF6B2C2F1782E6ABE149858D0247B
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :86'028 bytes
File size (de-compressed) :185'036 bytes
Format:linux/mipsel
Unpacked file: ee3124b52caf4d114bd913bffba3d912499f102a7a4ad48dcfadf5a1e2fcf18b

Intelligence


File Origin
# of uploads :
1
# of downloads :
85
Origin country :
DE DE
Vendor Threat Intelligence
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:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-05T04:22:00Z UTC
Last seen:
2026-08-05T04:40:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=5ad96b02-1900-0000-afb2-edca140c0000 pid=3092 /usr/bin/sudo guuid=84b22e05-1900-0000-afb2-edca150c0000 pid=3093 /tmp/sample.bin guuid=5ad96b02-1900-0000-afb2-edca140c0000 pid=3092->guuid=84b22e05-1900-0000-afb2-edca150c0000 pid=3093 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: 1952407 Sample: putita.mpsl.elf Startdate: 05/08/2026 Architecture: LINUX Score: 96 49 64.89.163.215, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected Mirai 2->55 57 Sample is packed with UPX 2->57 9 putita.mpsl.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.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        51 Protects files from modification 17->51 30 putita.mpsl.elf 20->30         started        32 putita.mpsl.elf 20->32         started        34 putita.mpsl.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.6HsnsL, 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
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-08-05 06:06:37 UTC
File Type:
ELF32 Little (SO)
AV detection:
12 of 24 (50.00%)
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 c81ed863e2f8dccc8afb7cda8b5d2f34c6fcfc3f018d7baf8a9658b82c362374

(this sample)

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