MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87
SHA3-384 hash: 3c465638ef0de648aa161c190959f5f9228dc21f17634ece87e3bf1d8be612af4eb97291f02dc3569e135600e59dbab2
SHA1 hash: 8a1c7192490d539fd990ddac457e8370d801bb30
MD5 hash: c1cdf1bf1e3601b9af56ca551b1fb4ff
humanhash: alanine-east-floor-lemon
File name:x86-DEBUG
Download: download sample
Signature Mirai
Create hunting rule
File size:41'284 bytes
First seen:2025-10-18 16:02:04 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:8J4sEvj6G2V8xa9arUFwWHNtoi239knbcuyD7UHQRjL+X:ZEGZKarUFF1239knouy8HyP+X
TLSH T1CA03E113C4FED31DE14E90350CDFB60B2C418ADDE8E6C5F49E9C64E2AD4DB965E05982
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Sends data to a server
Connection attempt
Traces processes
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed threat upx
Link:
https://www.filescan.io/uploads/68f3bb2b1384670fbd5720d1/reports/e08b1d32-f682-432a-ad0f-70a372caaf82/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-18T13:09:00Z UTC
Last seen:
2025-10-20T14:23:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c2e3064e-a276-47ca-a414-524d726c1770
Behavior Graph:
Download SVG
%3 guuid=e15dd385-1900-0000-2b94-0c2afc030000 pid=1020 /usr/bin/sudo guuid=7cf0af87-1900-0000-2b94-0c2a00040000 pid=1024 /tmp/sample.bin dns net send-data guuid=e15dd385-1900-0000-2b94-0c2afc030000 pid=1020->guuid=7cf0af87-1900-0000-2b94-0c2a00040000 pid=1024 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=7cf0af87-1900-0000-2b94-0c2a00040000 pid=1024->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 39B 47346955-92f2-5e7b-9a06-4cac66c3bd07 convac123.duckdns.org:61459 guuid=7cf0af87-1900-0000-2b94-0c2a00040000 pid=1024->47346955-92f2-5e7b-9a06-4cac66c3bd07 send: 40B guuid=dfc00fd5-1900-0000-2b94-0c2aa1040000 pid=1185 /tmp/sample.bin guuid=7cf0af87-1900-0000-2b94-0c2a00040000 pid=1024->guuid=dfc00fd5-1900-0000-2b94-0c2aa1040000 pid=1185 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5e102755-4b3b-4497-a742-cafed0b61988
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1797716
Signature
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-18 16:05:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehit24e5qbaoecetxpudh36366caxsrfxmr3wcruxgnd4tq2rwdq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery linux upx
Link:
https://tria.ge/reports/251018-tkk93sev8a/
Behaviour
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Traces itself
Mirai
Mirai family
Malware Config
C2 Extraction:
convac123.duckdns.org
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0023769d-1a53-410b-ab69-a8bdb133a571
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 21d13d709d8040e20893bbe833efdbf7840bca25bb23bb0a34b99a3e4e1a8d87

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3681092/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3681100/

Comments