MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f
SHA3-384 hash: 26125f77ede7a07addca28f79acede1faba1f452b8b2ed7651c47a41ae7bc92c1126aefaa0db056ce0e49d444e4d48f0
SHA1 hash: 8f1e1e95db2e48d9dec7cbacb8f8d7ac7344cb12
MD5 hash: ab7848a1fb2e3791b0b3a53adee2dc44
humanhash: purple-ceiling-purple-bulldog
File name:nova.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:105'060 bytes
First seen:2025-12-18 11:29:23 UTC
Last seen:2025-12-18 22:36:04 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:/i3vQOiy5Qc8o5dRqYGjPisIwB/TfjoiseFpWPWIl61d6a7Pvy:/i3vh6cR5dRyesIwB/TsiSWI4H7i
TLSH T17BA3EA1A7F12CFAEF769827007F74E31965837962AF1C585E19CE9401F602CE681FBA4
telfhash t12d113a18483813f597b50c9d27edfb76e45171ef4a215e378e00e8adea1dc42ad01c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
93
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/6539eb41-e360-43b6-8a73-d8f8b855dcb5/
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28959.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135898-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10027280-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Kills processes
Sends data to a server
Receives data from a server
Runs as daemon
DNS request
Substitutes an application name
Kills critical processes
Performs a bruteforce attack in the network
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bash botnet gafgyt gcc lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/6943e5cde126b9ff4386d002/reports/c10681a6-0e15-47a7-937e-a896f92055e0/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-12-18T09:47:00Z UTC
Last seen:
2025-12-18T10:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/70dfb88e-c9b5-418f-9424-461b186ab527
Behavior Graph:
Download SVG
%3 guuid=315f1be7-1600-0000-98d4-60e2470c0000 pid=3143 /usr/bin/sudo guuid=049e07e9-1600-0000-98d4-60e24b0c0000 pid=3147 /tmp/sample.bin guuid=315f1be7-1600-0000-98d4-60e2470c0000 pid=3143->guuid=049e07e9-1600-0000-98d4-60e24b0c0000 pid=3147 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/76472010-0a8b-4061-8854-ba724bffcb72
Result
Threat name:
Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1835598
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1835598 Sample: nova.mips.elf Startdate: 18/12/2025 Architecture: LINUX Score: 88 55 177.92.137.224, 23 ZAPTELECOMLTDABR Brazil 2->55 57 209.48.242.122, 23 XO-AS15US United States 2->57 59 100 other IPs or domains 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 Yara detected Okiru 2->67 8 nova.mips.elf 2->8         started        10 systemd gpu-manager 2->10         started        12 systemd dbus-daemon 2->12         started        15 77 other processes 2->15 signatures3 process4 signatures5 17 nova.mips.elf 8->17         started        19 nova.mips.elf 8->19         started        22 nova.mips.elf 8->22         started        24 gpu-manager sh 10->24         started        26 gpu-manager sh 10->26         started        28 gpu-manager sh 10->28         started        32 3 other processes 10->32 77 Sample reads /proc/mounts (often used for finding a writable filesystem) 12->77 30 gpu-manager sh 15->30         started        34 9 other processes 15->34 process6 signatures7 36 nova.mips.elf 17->36         started        49 4 other processes 17->49 69 Sample tries to kill a massive number of system processes 19->69 71 Sample tries to kill multiple processes (SIGKILL) 19->71 39 sh grep 24->39         started        41 sh grep 26->41         started        43 sh grep 28->43         started        45 sh grep 30->45         started        47 sh grep 32->47         started        51 2 other processes 32->51 53 2 other processes 34->53 process8 signatures9 73 Sample tries to kill a massive number of system processes 36->73 75 Sample tries to kill multiple processes (SIGKILL) 36->75
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-18 11:30:23 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kgrpbc3qnfpxuqvfrihmcwlmwnsh2kswibrhxcbrybwem7qpf2pq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora defense_evasion discovery
Link:
https://tria.ge/reports/251218-nmd1wssmhx/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Enumerates running processes
Modifies Watchdog functionality
Contacts a large (70559) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
botnet mirai trojan Unix.Dropper.Mirai-7135868-0
YARA:
Mirai_Botnet_Malware Linux_Trojan_Mirai_0bce98a2
Link:
https://app.threat.zone/submission/bfad0c79-eece-4713-b275-5b709c7acdf2
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:unixredflags3
Create hunting rule
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 51a2f08b70695f7a42a58a0ec1596cb3647d2a5640627b8831c06c467e0f2e9f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3735561/
  
Delivery method
Distributed via web download

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