MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6. 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: 21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6
SHA3-384 hash: b0d17026e351f936169325fc324cef433789610b3a3f0312fc7f00e2cc4992e47251fa5f3af9f6d4bc01d6f72ae0371e
SHA1 hash: 4456c46b5cfe72bfd50353cd26446b23dd3100d9
MD5 hash: 714fb306d8261e35d9e14a6b2a703318
humanhash: summer-twenty-april-pennsylvania
File name:0upspc
Download: download sample
Signature Mirai
Create hunting rule
File size:46'820 bytes
First seen:2026-01-29 18:27:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:yzomnlRq91dCPgsIrU6Tabz2rlnGqfrnxoO+6E0R4:yzVnlRS1dCPgs8U6azw1nxiX
TLSH T1D1235A21B9392F17C4D4A8BA22F74768B2F5165E25B8CB5E3D320E4EFF14A8095173B4
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
31
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/41cf2700-1ba3-4ffd-a254-ec8244509cb0/
Detection(s):
Unix.Dropper.Mirai-7135890-0
Create hunting rule

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

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

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/697ba6bb2ffccda097639156/reports/b0ac36b5-94b2-4d0d-bd3b-071a8e1d70c4/overview
Result
Gathering data
Verdict:
Malicious
File Type:
ELF 32 BE
Detections:
HEUR:Backdoor.Linux.Mirai.ba HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c528fa22-fa4a-4efa-af09-906687970145
Behavior Graph:
Download SVG
%3 guuid=45e36290-1700-0000-44b3-8d65a60a0000 pid=2726 /usr/bin/sudo guuid=f7910c92-1700-0000-44b3-8d65ac0a0000 pid=2732 /tmp/sample.bin guuid=45e36290-1700-0000-44b3-8d65a60a0000 pid=2726->guuid=f7910c92-1700-0000-44b3-8d65ac0a0000 pid=2732 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ddc217d8-48e2-49dd-8096-b3ea34315b68
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1860025
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1860025 Sample: 0upspc.elf Startdate: 29/01/2026 Architecture: LINUX Score: 60 21 trabahando.theworkpc.com 45.194.92.39, 58472, 8080 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 2->21 23 Antivirus / Scanner detection for submitted sample 2->23 25 Multi AV Scanner detection for submitted file 2->25 8 0upspc.elf 2->8         started        signatures3 process4 process5 10 0upspc.elf 8->10         started        13 0upspc.elf 8->13         started        15 0upspc.elf 8->15         started        signatures6 27 Sample tries to kill multiple processes (SIGKILL) 10->27 17 0upspc.elf 13->17         started        19 0upspc.elf 13->19         started        process7
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-29 18:28:29 UTC
File Type:
ELF32 Big (Exe)
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eh2bndvflvbsaopc55toiaqckwezhw7i2moombyqlmkxdnwbcdta._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:owari linux
Link:
https://tria.ge/reports/260129-w4fvtacw8d/
Malware Config
C2 Extraction:
trabahando.theworkpc.com
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/21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6

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

File information

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

Web download

Mirai

elf 21f4168ea55d432039e2ef66e40202558993dbe8d31ce607105b1571b6c110e6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3765521/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3765515/

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