MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3a34d567b2dcf24fd994959ddf22daaa11c679e9f570f4fa9227ba53a53dff5. 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: 11


Intelligence 11 IOCs YARA 14 File information Comments

SHA256 hash: f3a34d567b2dcf24fd994959ddf22daaa11c679e9f570f4fa9227ba53a53dff5
SHA3-384 hash: ba2f5b37c87256db854cb6b2faca3f873b9d906d318f3099b6c89cd5baa7bffe9532fe097e9b245d046b9e3b5b7be5e5
SHA1 hash: 0295a29772b542430fce37bb62a76a99522479cb
MD5 hash: 7658330069eb3a1d341756df91429eab
humanhash: winner-tennis-social-black
File name:nz.x86
Download: download sample
Signature Mirai
File size:80'880 bytes
First seen:2026-07-31 00:53:49 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:bAxTtfhenc5SWHpoClHNVVk/13HWCsBjJe7s4TtAQV:bALIuS0poClHN4/13HlsBdar1
TLSH T1B2837DC6E743C4F4E8528973217BE7328A73E53D102DEE83D769A932ED12501D66A39C
telfhash t13f31a8f71eba5df8b7d06400d31e5b522969d67b186036625673c82022beed290bac39
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 1741729211a767777d024691477bc83333d59e0f9f222571600487bdd4f9b011
File size (compressed) :40'436 bytes
File size (de-compressed) :80'880 bytes
Format:linux/i386
Packed file: 1741729211a767777d024691477bc83333d59e0f9f222571600487bdd4f9b011

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sends data to a server
Connection attempt
Sets a written file as executable
Kills processes
Runs as daemon
DNS request
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-30T22:08:00Z UTC
Last seen:
2026-07-31T01:42:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=76217621-1c00-0000-0b8a-0761aa090000 pid=2474 /usr/bin/sudo guuid=97ac3f25-1c00-0000-0b8a-0761af090000 pid=2479 /tmp/sample.bin net guuid=76217621-1c00-0000-0b8a-0761aa090000 pid=2474->guuid=97ac3f25-1c00-0000-0b8a-0761af090000 pid=2479 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=97ac3f25-1c00-0000-0b8a-0761af090000 pid=2479->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=178e6825-1c00-0000-0b8a-0761b0090000 pid=2480 /tmp/sample.bin guuid=97ac3f25-1c00-0000-0b8a-0761af090000 pid=2479->guuid=178e6825-1c00-0000-0b8a-0761b0090000 pid=2480 clone guuid=60197125-1c00-0000-0b8a-0761b2090000 pid=2482 /tmp/sample.bin write-config zombie guuid=178e6825-1c00-0000-0b8a-0761b0090000 pid=2480->guuid=60197125-1c00-0000-0b8a-0761b2090000 pid=2482 clone guuid=33e3362f-1c00-0000-0b8a-0761bd090000 pid=2493 /usr/bin/dash guuid=60197125-1c00-0000-0b8a-0761b2090000 pid=2482->guuid=33e3362f-1c00-0000-0b8a-0761bd090000 pid=2493 execve guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500 /tmp/sample.bin net send-data zombie guuid=60197125-1c00-0000-0b8a-0761b2090000 pid=2482->guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500 clone guuid=586f3530-1c00-0000-0b8a-0761c0090000 pid=2496 /usr/bin/cp guuid=33e3362f-1c00-0000-0b8a-0761bd090000 pid=2493->guuid=586f3530-1c00-0000-0b8a-0761c0090000 pid=2496 execve guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 2475B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 2B guuid=2b2b3034-1c00-0000-0b8a-0761c5090000 pid=2501 /tmp/sample.bin guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500->guuid=2b2b3034-1c00-0000-0b8a-0761c5090000 pid=2501 clone guuid=b27c3534-1c00-0000-0b8a-0761c6090000 pid=2502 /tmp/sample.bin guuid=66e51534-1c00-0000-0b8a-0761c4090000 pid=2500->guuid=b27c3534-1c00-0000-0b8a-0761c6090000 pid=2502 clone
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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: 1950429 Sample: nz.x86.elf Startdate: 31/07/2026 Architecture: LINUX Score: 76 30 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEM-CapeRegionalMedicalCenterIncUS United States 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 10 nz.x86.elf 2->10         started        signatures3 process4 process5 12 nz.x86.elf 10->12         started        process6 14 nz.x86.elf 12->14         started        file7 28 /etc/init.d/sysd, POSIX 14->28 dropped 38 Sample tries to set files in /etc globally writable 14->38 40 Drops files in suspicious directories 14->40 42 Sample tries to persist itself using System V runlevels 14->42 18 nz.x86.elf sh 14->18         started        20 nz.x86.elf 14->20         started        signatures8 process9 process10 22 sh cp 18->22         started        24 nz.x86.elf 20->24         started        26 nz.x86.elf 20->26         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-31 00:54:35 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery linux persistence
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Malware Config
C2 Extraction:
s3o65awrf56.net
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_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
Author:Elastic Security
Rule name:telebot_framework
Author:vietdx.mb
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information


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

Web download

Mirai

elf f3a34d567b2dcf24fd994959ddf22daaa11c679e9f570f4fa9227ba53a53dff5

(this sample)

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