MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4
SHA3-384 hash: f5819d76c3790e6891ad8fa4e65482775789e70a6b6f502ae631708290a449f26e38dd9167c90e0737f459934f5e358a
SHA1 hash: c34939c94d39f0ec52e8baed6822a6e1ef49fbea
MD5 hash: 73e5bb85f6bc4ac61c4599267e9d58b6
humanhash: virginia-carolina-four-victor
File name:putita.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:82'812 bytes
First seen:2026-08-19 02:54:37 UTC
Last seen:2026-08-19 14:57:13 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:8DYzGTOPbpWPrdrI86ECc3+ZlDDxr81wsIkQCO1Dw8d0XW4ccfE:hqK0sD5DxrWwXkvOPCNM
TLSH T177831246AB59BDB0C697467B7D6E57853B4248F095FC70110A20EF23BDC08672EFA50A
Magika elf
Reporter abuse_ch
Tags:elf UPX
File size (compressed) :82'812 bytes
File size (de-compressed) :185'988 bytes
Format:linux/arm
Unpacked file: ef7b53ea0f0351395a0fbe473d5866ddabd29aac3ad0d09f70b84f8668a6464f

Intelligence

File Origin
# of uploads :
2
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e49f21b9-513a-4768-b694-24364be11ed8/
Detection(s):
SecuriteInfo.com.Linux.Mirai.10742.16470.27007.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes the time when the file was created, accessed, or modified
Opens a port
Creating a file
Launching a process
Connection attempt
Sets a written file as executable
Runs as daemon
Creates or modifies symbolic links
Changes access rights for a written file
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
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:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a851b2bf7141c21705e47d8/reports/42427465-20eb-4469-b0e2-e4cc6e7a046c/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
4
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fea4f764-f941-4f75-9409-fd221a6862a8
Behavior Graph:
Download SVG
%3 guuid=9bd894e3-1a00-0000-0505-b4db03090000 pid=2307 /usr/bin/sudo guuid=a3171ce7-1a00-0000-0505-b4db06090000 pid=2310 /tmp/sample.bin guuid=9bd894e3-1a00-0000-0505-b4db03090000 pid=2307->guuid=a3171ce7-1a00-0000-0505-b4db06090000 pid=2310 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/649991c4-d9ac-4887-9a8f-1d99a86e1442
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1960139
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1960139 Sample: putita.arm5.elf Startdate: 19/08/2026 Architecture: LINUX Score: 88 49 64.89.163.215, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Sample is packed with UPX 2->55 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 63 Sample tries to set files in /etc globally writable 9->63 65 Sample tries to persist itself using /etc/profile 9->65 67 Drops files in suspicious directories 9->67 69 3 other signatures 9->69 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.OkqhPp, ASCII 22->39 dropped 59 Sample tries to persist itself using cron 22->59 61 Executes the "crontab" command typically for achieving persistence 22->61 36 sh crontab 26->36         started        signatures11 process12 signatures13 57 Executes the "crontab" command typically for achieving persistence 36->57
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ixmzqt3wj46l56viweiqxbg2qyxtqvnicsfw6vt7c5a6alyyy7ka._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260819-devzbsvhld/
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/45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4

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: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:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
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 45d9984f764f3cbefaa8b1110b84da862f3855a8148b6f567f1741e02f18c7d4

(this sample)

Mirai

elf ef7b53ea0f0351395a0fbe473d5866ddabd29aac3ad0d09f70b84f8668a6464f

  
URLhaus
https://urlhaus.abuse.ch/url/3892132/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 ef7b53ea0f0351395a0fbe473d5866ddabd29aac3ad0d09f70b84f8668a6464f
  
Dropping
MD5 47164ed19d74aeba2077255bb3f2a3ee
  
URLhaus
https://urlhaus.abuse.ch/url/3892139/
  
URLhaus
https://urlhaus.abuse.ch/url/3885288/

Comments