MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b
SHA3-384 hash: 446d9d61d5fe03a60463dba65cbb82629a6f1113309882ef31913f5e5719577f94630ed97dd1c3acffcefa7c50d7974b
SHA1 hash: 27b995b77a052f4bae60f66d47aa838b0ca99020
MD5 hash: f5a821958aea1df3b99e2689ea3225f8
humanhash: wyoming-connecticut-arkansas-quebec
File name:mips
Download: download sample
Signature Mirai
Create hunting rule
File size:80'128 bytes
First seen:2025-11-09 13:30:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:CL/E3wrWZ4jWzWqRlq0ykpJJTKvmhuC2Si90Za5xbyuybVR0:SE3/ZqM3lpJJTKv2uC2S3Za5lyuys
TLSH T1DB73961A3E25DFADFB6CC73687B78E209748339526E0C585E16CE9015E6034DA41FBAC
telfhash t10b014b58883c13f0d3824d9dabedff76e09080df9a265e37ce10f99a5b219469d00c2c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Creating a file
Runs as daemon
Opens a port
DNS request
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/691097878938e2fe22190f65/reports/250b1dc2-5722-4d4c-9bc1-c52b7e761a57/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
3
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-11-09T09:00:00Z UTC
Last seen:
2025-11-09T16:31:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/662da358-f6fd-40c7-a330-f92f5aa94856
Behavior Graph:
Download SVG
%3 guuid=df6e8074-1800-0000-b504-d5e6b70d0000 pid=3511 /usr/bin/sudo guuid=a6cdfc76-1800-0000-b504-d5e6c00d0000 pid=3520 /tmp/sample.bin guuid=df6e8074-1800-0000-b504-d5e6b70d0000 pid=3511->guuid=a6cdfc76-1800-0000-b504-d5e6c00d0000 pid=3520 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f2976220-850c-4a38-80d6-ec690b2df548
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1810945
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1810945 Sample: mips.elf Startdate: 09/11/2025 Architecture: LINUX Score: 56 22 98.136.129.146, 23 YAHOO-GQ1US United States 2->22 24 149.90.189.149, 23 VODAFONE-PTVodafonePortugalPT Portugal 2->24 26 27 other IPs or domains 2->26 28 Antivirus / Scanner detection for submitted sample 2->28 30 Multi AV Scanner detection for submitted file 2->30 8 mips.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 mips.elf 8->14         started        process6 16 mips.elf 14->16         started        18 mips.elf 14->18         started        20 mips.elf 14->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-09 13:30:46 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=jkiyqhzmn7hdwbnh7g52xpeikpe7fcre4n7kxkwmib4b6uoozifq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access defense_evasion discovery
Link:
https://tria.ge/reports/251109-qr76mswkaw/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Renames itself
Contacts a large (102396) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7222dbc1-2df2-439a-ba82-248807a55347
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: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 4a91881f2c6fce3b05a7f9bbabbc8853c9f28a24e37eabaacc40781f51ceca0b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3700414/
  
Delivery method
Distributed via web download

Comments