MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8beb744ad418cf0304095aead056fde47dcb889ed917b78559c8c0c68dffe581. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments

SHA256 hash: 8beb744ad418cf0304095aead056fde47dcb889ed917b78559c8c0c68dffe581
SHA3-384 hash: 978ff1ad8193c4d25ee6f766fdc6ef2982e0ba28336c51d166c325f837eb3167ef54586218bed7319c57ef7b5e2f4a78
SHA1 hash: 12f04e1ae2873a32a5fe1df0d6e1fe5840ac573c
MD5 hash: ef1c39c21ac6ea4c7bb99d379f0d85f0
humanhash: hot-carpet-helium-maine
File name:putita.arm5
Download: download sample
Signature Mirai
File size:59'324 bytes
First seen:2026-08-05 03:21:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:5vL3NHASE8G6gmaSZX/NAdPJW1bsg5MDT3l5fZl:5vDNdEcgAZXlQh2sw+v
TLSH T13A430262220A7FD1C5932C7BD37EF188B194A97C52B836B1433902D9D165C5B3BFB542
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) :59'324 bytes
File size (de-compressed) :128'444 bytes
Format:linux/arm
Unpacked file: e0be3f6600d16a77b705cc780dde976839e605c8c44b7205af301f0bab4287ef

Intelligence


File Origin
# of uploads :
1
# of downloads :
81
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Launching a process
Connection attempt
Runs as daemon
Receives data from a server
Sends data to a server
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:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
3
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-05T01:34:00Z UTC
Last seen:
2026-08-06T18:48:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1952370 Sample: putita.arm5.elf Startdate: 05/08/2026 Architecture: LINUX Score: 88 53 149.56.241.59, 22 OVHFR Canada 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 Sample is packed with UPX 2->61 9 putita.arm5.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 69 Sample tries to set files in /etc globally writable 9->69 71 Sample tries to persist itself using /etc/profile 9->71 73 Drops files in suspicious directories 9->73 75 3 other signatures 9->75 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        57 Protects files from modification 17->57 30 putita.arm5.elf 20->30         started        32 putita.arm5.elf 20->32         started        34 putita.arm5.elf 20->34         started        36 putita.arm5.elf 20->36         started        process9 file10 43 /var/spool/cron/crontabs/tmp.yf0TuF, ASCII 22->43 dropped 65 Sample tries to persist itself using cron 22->65 67 Executes the "crontab" command typically for achieving persistence 22->67 38 sh crontab 26->38         started        41 putita.arm5.elf 30->41         started        signatures11 process12 signatures13 63 Executes the "crontab" command typically for achieving persistence 38->63
Threat name:
Linux.Worm.Mirai
Status:
Suspicious
First seen:
2026-08-05 03:22:29 UTC
File Type:
ELF32 Little (SO)
AV detection:
12 of 38 (31.58%)
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
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Removes the immutable protection flag from a file
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:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
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 8beb744ad418cf0304095aead056fde47dcb889ed917b78559c8c0c68dffe581

(this sample)

  
Delivery method
Distributed via web download

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