MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c. 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: a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c
SHA3-384 hash: 11ddf3b6096a70e83357ff3f49bf10a2dd1030dc79bad1d168eac1757151154a04295d691486883eb71a3ae152ee1437
SHA1 hash: 3a80894626bd820f537c03c0acaa92054c98bfed
MD5 hash: 4867e7c3fe85066cb850980b630fe779
humanhash: louisiana-network-berlin-early
File name:putita.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:56'436 bytes
First seen:2026-08-18 00:47:10 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:SzkFZ5LDfg1Inf3PdtzQET1mjO0DPtjpfi:QkFjLDfgYXdRRRmjhDVFK
TLSH T1A44302D3A8D2397ECD385371E4BEC2971D20AB3CFA93B027F524AB5C21E594612B14D6
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) :56'436 bytes
File size (de-compressed) :124'368 bytes
Format:linux/arm
Unpacked file: 8995cc7fb82c8c4223b3ccf74047ab7c2055c1551dfc04fe649257c47c9f624c

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e3783b2a-18bf-4931-bcc0-ff1cba5bbb27/
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
Link:
https://www.filescan.io/uploads/6a83aba5c5092646e14dfc9d/reports/cee9236b-93ba-4fd6-97a1-0de8aa4aa31d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
95
Number of processes launched:
9
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a93fa9da-c452-4358-a573-e15e8fcf7bac
Behavior Graph:
Download SVG
%3 guuid=4a95bd82-1800-0000-2bdd-1a69d90b0000 pid=3033 /usr/bin/sudo guuid=b8f16c84-1800-0000-2bdd-1a69da0b0000 pid=3034 /tmp/sample.bin guuid=4a95bd82-1800-0000-2bdd-1a69d90b0000 pid=3033->guuid=b8f16c84-1800-0000-2bdd-1a69da0b0000 pid=3034 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2cc2f22-e731-4be4-8162-05f209845920
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1959375
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: 1959375 Sample: putita.arm6.elf Startdate: 18/08/2026 Architecture: LINUX Score: 88 49 64.89.163.215, 33758, 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.arm6.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.arm6.elf sh 9->13         started        15 putita.arm6.elf sh 9->15         started        17 putita.arm6.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.arm6.elf 20->30         started        32 putita.arm6.elf 20->32         started        34 putita.arm6.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.mh3LC1, 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/a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vh4fwmi4h2rmmdtwxecyith3ny34nicxlzk5zrj655f5gcfm64wa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260818-a5gylstvh1/
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/a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c

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 a9f85b311c3ea2c60e76b905844cfb6e37c6a0575e55dcc53eef4bd308acf72c

(this sample)

Mirai

elf 8995cc7fb82c8c4223b3ccf74047ab7c2055c1551dfc04fe649257c47c9f624c

  
URLhaus
https://urlhaus.abuse.ch/url/3885285/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 8995cc7fb82c8c4223b3ccf74047ab7c2055c1551dfc04fe649257c47c9f624c
  
Dropping
MD5 827bbb51382589ec833d9d76e711555d
  
URLhaus
https://urlhaus.abuse.ch/url/3892136/

Comments