MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f81137ecf5369581b7d1276b68b9f1bf874f2368268cc271b373291798846fd4. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash: f81137ecf5369581b7d1276b68b9f1bf874f2368268cc271b373291798846fd4
SHA3-384 hash: fb4eff0e77743222c8b7b54119667e637703a83887712aa0ea41ca1e0cb1d965738a1090d119769fc6ead2ee979beaa3
SHA1 hash: 0ca7701a39c76bb91e1bed7907cd12091028568d
MD5 hash: 9e37806ccee21c3f19d8e97f6084ef85
humanhash: uncle-quebec-nevada-happy
File name:mips
Download: download sample
Signature Mirai
File size:113'580 bytes
First seen:2026-01-25 17:46:30 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:hQGEaQjzh33F33fQ3X31Axp/Fy7udCZZyklWyIsK5RaJVBwMAYhX+:hQKQjG1AxKud7fcK5kJqYhX+
TLSH T194B3B50F6E539F7DF32C83744BB78B25AA99279633E0C185E25CD9411D6028E186FFA4
telfhash t1ec11845c893802f097a41ddd6bedff35e1a161ef0b255e338d40f9aada69a419e00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
38
Number of processes launched:
4
Processes remaning?
false
Remote TCP ports scanned:
23
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-25T16:07:00Z UTC
Last seen:
2026-01-27T00:30:00Z UTC
Hits:
~100
Status:
terminated
Behavior Graph:
%3 guuid=fa74113b-1c00-0000-3231-3e95b1080000 pid=2225 /usr/bin/sudo guuid=3a6ad53c-1c00-0000-3231-3e95b7080000 pid=2231 /tmp/sample.bin guuid=fa74113b-1c00-0000-3231-3e95b1080000 pid=2225->guuid=3a6ad53c-1c00-0000-3231-3e95b7080000 pid=2231 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample deletes itself
Sends malformed DNS queries
Behaviour
Behavior Graph:
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-01-25 17:47:40 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to shm directory
Enumerates running processes
Deletes itself
Executes dropped EXE
Contacts a large (58255) amount of remote hosts
Creates a large amount of network flows
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
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 f81137ecf5369581b7d1276b68b9f1bf874f2368268cc271b373291798846fd4

(this sample)

  
Delivery method
Distributed via web download

Comments