MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b550e53a4dff32aa8f73a4fc994a6737c20776aa0f96ec7865cd12d5da6ec4cb. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: b550e53a4dff32aa8f73a4fc994a6737c20776aa0f96ec7865cd12d5da6ec4cb
SHA3-384 hash: f92f90ae5407f8937377e06196a3da9a2e854c0ba593f5316103a556933c375f0b4a5a064ed036f14d205cd060070e15
SHA1 hash: 6cd9bda02c9e5eff80696ac8063ffe34b0d38c0b
MD5 hash: f54d6f830a2ad856e1d2fb9df29709c5
humanhash: bacon-coffee-berlin-steak
File name:nz.mpsl
Download: download sample
Signature Mirai
File size:122'496 bytes
First seen:2026-07-07 05:51:07 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:mtJ6cGVoVBFf+g6z3jLH514RX8sneY0+YdW0OKhp6XposGZ5uhrKnr1Fm41CUhQ4:sJ6cGVoF6TnpH6X7GCJO912Fs
TLSH T132C3F909AB614FFBE86FCD3746E90B0525CC551722B83B7A3574D828F64B64B4AE3870
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 8ceccec8abe8d41338a6136b70400e3cc074913f17bea4c152ebce40c68176be
File size (compressed) :44'776 bytes
File size (de-compressed) :122'496 bytes
Format:linux/mipsel
Packed file: 8ceccec8abe8d41338a6136b70400e3cc074913f17bea4c152ebce40c68176be

Intelligence


File Origin
# of uploads :
1
# of downloads :
101
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Sends data to a server
Sets a written file as executable
Connection attempt
Launching a process
Kills processes
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:
Malicious
File Type:
elf.32.le
First seen:
2026-07-07T02:58:00Z UTC
Last seen:
2026-07-08T19:20:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Status:
terminated
Behavior Graph:
%3 guuid=d3b06945-1900-0000-7be6-cf6ea20f0000 pid=4002 /usr/bin/sudo guuid=2b392647-1900-0000-7be6-cf6ea80f0000 pid=4008 /tmp/sample.bin guuid=d3b06945-1900-0000-7be6-cf6ea20f0000 pid=4002->guuid=2b392647-1900-0000-7be6-cf6ea80f0000 pid=4008 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-07-07 05:51:48 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery 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
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: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 b550e53a4dff32aa8f73a4fc994a6737c20776aa0f96ec7865cd12d5da6ec4cb

(this sample)

  
Delivery method
Distributed via web download

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