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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b507655ae627029dcd4ecfdcc8b73cc6b85b93c3cb44beec1ffdf28b6fe1adb1. 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 12 File information Comments

SHA256 hash: b507655ae627029dcd4ecfdcc8b73cc6b85b93c3cb44beec1ffdf28b6fe1adb1
SHA3-384 hash: 666aa19481a4a5a22c2fbc27c958759fbe2700ab5693cb3a5af85b70fb83f46c9cf5c1a32900ae55dab9c9a2382ecd1b
SHA1 hash: 3356e1f59fe75abe5490222b27f032d39ef291e2
MD5 hash: 1121224ae826596e85d1d4cf9a8f4c47
humanhash: stairway-beryllium-jupiter-arkansas
File name:sever1078.mips
Download: download sample
Signature Mirai
File size:624'240 bytes
First seen:2026-09-24 00:22:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:FhbH17jRCSOxc33GqR2rkY+xMUs9LsvFAdyA/qIpQwM30RmiNb07H/Fb4uCIYVKs:FhhhXOTGFsyvFcpA3mVU7C/
TLSH T1E6D4F85A6E619F3DF67487718BF38A30D26A639207E1C5C1E1ECE1090E2029D5D6FB6C
telfhash t161714ec77db632d87d8c424a47cdea300d5a085e1af61a7ace5651cb871b7c22fb6c12
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2
File size (compressed) :241'084 bytes
File size (de-compressed) :624'240 bytes
Format:linux/mips
Packed file: f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2

Intelligence


File Origin
# of uploads :
1
# of downloads :
81
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Opens a port
Creating a process from a recently created file
Launching a process
Changes the time when the file was created, accessed, or modified
Connection attempt
Sends data to a server
Manages services
Runs as daemon
Sets a written file as executable
DNS request
Changes access rights for a written file
Creating a file
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
54
Number of processes launched:
13
Processes remaning?
true
Remote TCP ports scanned:
2323,5555,23
Behaviour
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-09-23T22:36:00Z UTC
Last seen:
2026-09-23T23:21:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=b51b10ca-1800-0000-0f2f-022ed60a0000 pid=2774 /usr/bin/sudo guuid=2e0ab8cc-1800-0000-0f2f-022ed70a0000 pid=2775 /tmp/sample.bin guuid=b51b10ca-1800-0000-0f2f-022ed60a0000 pid=2774->guuid=2e0ab8cc-1800-0000-0f2f-022ed70a0000 pid=2775 execve
Gathering data
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-09-24 00:23:28 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Contacts a large (44000) amount of remote hosts
Creates a large amount of network flows
Family: Mirai
Malware Config
C2 Extraction:
bigbigvol.qd.je
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Author:Elastic Security
Rule name:LIN_Downloader_Unknown_WgetChmodExecute
Author:Marjoriefort
Description:Script shell downloader : wget+curl, chmod 777, execution, effacement (rm -rf) - botnet style
Reference:misses_archive / grappe 5.182.210.174
Rule name:NSVPS_Mirai_Busybox_Staging
Author:sanad (NSVPS-SOC)
Description:Mirai-style busybox wget/tftp payload staging seen in NSVPS honeypot
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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 b507655ae627029dcd4ecfdcc8b73cc6b85b93c3cb44beec1ffdf28b6fe1adb1

(this sample)

  
Delivery method
Distributed via web download

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