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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851. 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: 9


Intelligence 9 IOCs YARA 21 File information Comments
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SHA256 hash: 21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851
SHA3-384 hash: c51479bc2f2fe4d4f0fd3559d7bd5a43ffee6a2d10bb8c86096fe22c911bddbad60a13363fadb6940c34f2929db650e3
SHA1 hash: 772c303489f8dc3cfc5d128b6fb06906cd800580
MD5 hash: 399d7717793e60a3cdbc6dbd339cb932
humanhash: green-diet-south-harry
File name:debug
Download: download sample
Signature Mirai
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File size:1'001'896 bytes
First seen:2026-10-13 16:00:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 12288:lJZaiFWBe5ReECrSa99plVmFeUCYIru7sihX7wy09FvsDLP:PWBemECr3/vYIqGy09FkDD
TLSH T170254B9DF3A1E79ED102E6315FFBA66C5B3061752532B00B7349793615362C0CFAAB22
telfhash t14821df96d97ddb795a9349319cb567a19053c632b072d324ef20dad4a83f101b10df8f
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 BlinkzSec
Tags:mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
CZ CZ
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Mirai-44.UNOFFICIAL
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Unix.Dropper.Mirai-7135925-0
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YARA.SIGNATURE_BASE_MAL_ARM_LNX_Mirai_Mar13_2022.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 gcc mirai obfuscated
Link:
https://www.filescan.io/uploads/6ace5603685959aa5dd8e418/reports/92f59592-3e49-4a35-aff4-2d12679f57fc/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-10-13T13:14:00Z UTC
Last seen:
2026-10-15T12:59:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f43aa183-7cdc-4242-8f57-bd2b005f0869
Behavior Graph:
Download SVG
%3 guuid=42dc45bd-1d00-0000-46b5-bd32ef0b0000 pid=3055 /usr/bin/sudo guuid=ae4b88c2-1d00-0000-46b5-bd32f50b0000 pid=3061 /tmp/sample.bin guuid=42dc45bd-1d00-0000-46b5-bd32ef0b0000 pid=3055->guuid=ae4b88c2-1d00-0000-46b5-bd32f50b0000 pid=3061 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/2c0da1b5-1f17-4791-be57-bd625d8d7156
Score:
95%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851/
Threat name:
Linux.Backdoor.Mirai
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Status:
Malicious
First seen:
2026-10-13 15:58:51 UTC
File Type:
ELF64 Little (SO)
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eg763j6pqdba6e4s3z4px7pz5ps5666lwpixoubwxek2v7epjbiq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet linux
Link:
https://tria.ge/reports/261013-tfyplscc35/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851

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:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_all_IPv6_variants
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Author:Bierchermuesli
Description:Generic IPv6 catcher
Rule name:ELF_Packer_Dropper_Fileless_Armhf
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Author:Serhii Kocherhan
Description:Detects obfuscated Linux ELF packers/droppers featuring ChaCha20/RC4 decryption, memfd_create/execveat fileless execution capabilities, and unique binary artifacts.
Rule name:enterpriseapps2
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Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:EXPL_HKTL_LNX_DirtyFragShellcode_May26
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Author:Pezier Pierre-Henri (Nextron Systems)
Description:Detects a shellcode observed in dirtyfrag, a local privilege escalation exploit for Linux.
Reference:https://github.com/V4bel/dirtyfrag/tree/master
Rule name:F01_s1ckrule
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Author:s1ckb017
Rule name:Linux_Exploit_CVE_2018_10562_badc0676
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Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:Linux_Exploit_CVE_2021_46422_69af1b79
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Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:Linux_Generic_Threat_900ffdd4
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Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
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Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:MIRAI_OHSHIT_payload
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Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:NET
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Author:malware-lu
Rule name:NSVPS_Hydra_SSH_Bruteforce
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Author:sanad (NSVPS-SOC)
Description:Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:test_rule_vldslv
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Rule name:unixredflags3
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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 21bfeda7cf80c20f1392de78fbfdf9ebe5df7bcbb3d1775036b915aafc8f4851

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3949651/
  
Delivery method
Distributed via web download

Comments