MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 667e19c5e76326d4ac0aef66d085a6ca3b504fcae7df437f3f75e69005585ee6. 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 5 File information Comments

SHA256 hash: 667e19c5e76326d4ac0aef66d085a6ca3b504fcae7df437f3f75e69005585ee6
SHA3-384 hash: 88a1e10e8031ea6d2ebd55a84cf23b4de33d978bdcdb0825c3590a1a63567044fb3cccbca3add2684b149034352e5669
SHA1 hash: 86d07e74f9e6f03327544c50ee7c75e1e25d1045
MD5 hash: ed27d5324ee33b4f354071424d8fb5d7
humanhash: potato-black-vegan-tango
File name:putita.arm5
Download: download sample
Signature Mirai
File size:84'752 bytes
First seen:2026-08-23 07:37:49 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:MgKLpRWrJiNraV6wsBZ9yy7xTOQbKPR2+xGgPQv4wdGhyEQCcNCxseFxnkM/KKW1:2L2NiNrtF7xTOQbKR2WGgPQv7dGhyEx4
TLSH T130830240C3827271DC5229339799C382BC15CEA943AF35E7BC14DAACE85764D5B7CB92
Magika elf
Reporter abuse_ch
Tags:elf UPX
File size (compressed) :84'752 bytes
File size (de-compressed) :190'140 bytes
Format:linux/arm
Unpacked file: bb77f5b6196bfa20a1b14f8c162182cb6f685bda63ddff4ea0e0948846a77744

Intelligence


File Origin
# of uploads :
1
# of downloads :
48
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sets a written file as executable
Sends data to a server
Creating a file
Receives data from a server
Runs as daemon
Creates or modifies symbolic links
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Opens a port
Launching a process
Connection attempt
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Writes files to system directory
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:
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:
4
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
Status:
terminated
Behavior Graph:
%3 guuid=7752fa54-1800-0000-a058-f791a60a0000 pid=2726 /usr/bin/sudo guuid=99799857-1800-0000-a058-f791ab0a0000 pid=2731 /tmp/sample.bin guuid=7752fa54-1800-0000-a058-f791a60a0000 pid=2726->guuid=99799857-1800-0000-a058-f791ab0a0000 pid=2731 execve
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: 1962353 Sample: putita.arm5.elf Startdate: 23/08/2026 Architecture: LINUX Score: 88 49 64.89.163.215, 36078, 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.2RJBRM, 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
Gathering data
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:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
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 667e19c5e76326d4ac0aef66d085a6ca3b504fcae7df437f3f75e69005585ee6

(this sample)

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