MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd452a29195e8701a88e3fc511005ccba9d6c7bf285b0624c14fc5b6556374bb. 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 6 File information Comments

SHA256 hash: bd452a29195e8701a88e3fc511005ccba9d6c7bf285b0624c14fc5b6556374bb
SHA3-384 hash: a0ac816b6e9780bb346b5e3a071e04a85998b01eb6d38297fe5cf5ece9bdb0c694803393230017e07c608402c3986172
SHA1 hash: 0a9696b89b9f4ea5671e3ca1250707f3a43dd2b1
MD5 hash: b382cb8bc47900363445bbcf3fdb3996
humanhash: edward-harry-green-alpha
File name:putita.mips
Download: download sample
Signature Mirai
File size:182'088 bytes
First seen:2026-08-16 20:22:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:ZS0sGtQAywQcv8gFyBsNubBul8L45tmwRd2/KHJbjy1Ddjt:FJubYlPvJW8BjoFt
TLSH T1B704084E7710CF61C72DC93109B38B4666F526512AE28849F32CDE08BE6534DA96FED8
telfhash t1d631bdb08b7b65125ac5c7ec88ec775a591e8515470adf33fe3280bc90260ece22ad4f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 80cb8aa7d2c6959c3e974aa72b460882cdb2cd01a0819ae143975ca0f9057b47
File size (compressed) :83'772 bytes
File size (de-compressed) :182'088 bytes
Format:linux/mips
Packed file: 80cb8aa7d2c6959c3e974aa72b460882cdb2cd01a0819ae143975ca0f9057b47

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sets a written file as executable
Launching a process
Connection attempt
Runs as daemon
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
dropper gcc masquerade mirai
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-08-16T18:32:00Z UTC
Last seen:
2026-08-16T20:02:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=2abd880e-1a00-0000-4f49-72159f080000 pid=2207 /usr/bin/sudo guuid=d7c07513-1a00-0000-4f49-7215a6080000 pid=2214 /tmp/sample.bin guuid=2abd880e-1a00-0000-4f49-72159f080000 pid=2207->guuid=d7c07513-1a00-0000-4f49-7215a6080000 pid=2214 execve
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains symbols with names commonly found in malware
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 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: 1958703 Sample: putita.mips.elf Startdate: 16/08/2026 Architecture: LINUX Score: 100 49 64.89.163.215, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Antivirus detection for dropped file 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 2 other signatures 2->59 9 putita.mips.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 67 Sample tries to set files in /etc globally writable 9->67 69 Sample tries to persist itself using /etc/profile 9->69 71 Drops files in suspicious directories 9->71 73 3 other signatures 9->73 13 putita.mips.elf sh 9->13         started        15 putita.mips.elf sh 9->15         started        17 putita.mips.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.mips.elf 20->30         started        32 putita.mips.elf 20->32         started        34 putita.mips.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.nD1wLP, ASCII 22->39 dropped 63 Sample tries to persist itself using cron 22->63 65 Executes the "crontab" command typically for achieving persistence 22->65 36 sh crontab 26->36         started        signatures11 process12 signatures13 61 Executes the "crontab" command typically for achieving persistence 36->61
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-08-16 20:23:26 UTC
File Type:
ELF32 Big (SO)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Modifies Bash startup script
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:ELF_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:woof_mirai_variant
Author:Nokia Deepfield ERT
Description:Detects Woof Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper)
Reference:Internal analysis of sample 6ef4ce02

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf bd452a29195e8701a88e3fc511005ccba9d6c7bf285b0624c14fc5b6556374bb

(this sample)

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