MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98
SHA3-384 hash: cba3c170830ba7d3581079e7aaef410c75d978aeb7f076757b35a843544c311a2c8e03931273134dc7cc0ea7f64f66ed
SHA1 hash: 033b6c7c2f64b89a48842a91a7c350d44694b772
MD5 hash: 88a255153926219ed76fa460e5aac6dc
humanhash: undress-pluto-undress-hotel
File name:nz.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:49'508 bytes
First seen:2026-07-07 14:19:57 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:EFa6gkyhnq5c7Jg9Klf31/fzm7pfwtvuyWaOsUW155kQm8mbITJHtZftRzfrwixj:zRnq5e3lFttnOsUWz5OJbILtrzrxT
TLSH T15F23F1DE57FBA1F9CD1BCA71D42F5B607DF07413892A632708E5A77AC863B294800E90
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 UPX
File size (compressed) :49'508 bytes
File size (de-compressed) :117'744 bytes
Format:linux/amd64
Unpacked file: f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f

Intelligence

File Origin
# of uploads :
1
# of downloads :
35
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/87ff18d3-759a-4b27-9545-94824532ded9/
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Opens a port
Sends data to a server
Connection attempt
Receives data from a server
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6a4d0f5ea151702f90047cfa/reports/db0d71c3-fa56-4133-86e9-b50afc31c9dc/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-07-03T11:16:00Z UTC
Last seen:
2026-07-09T02:32:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2b62b2df-eb71-460e-8237-75c666794575
Behavior Graph:
Download SVG
%3 guuid=b6048590-7800-0000-22db-506e7c030000 pid=892 /usr/bin/sudo guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893 /tmp/sample.bin mprotect-exec net guuid=b6048590-7800-0000-22db-506e7c030000 pid=892->guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=3c6ddb93-7800-0000-22db-506e7e030000 pid=894 /tmp/sample.bin guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893->guuid=3c6ddb93-7800-0000-22db-506e7e030000 pid=894 clone guuid=66b742be-7900-0000-22db-506e81030000 pid=897 /tmp/sample.bin guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893->guuid=66b742be-7900-0000-22db-506e81030000 pid=897 clone guuid=13ee4cbe-7900-0000-22db-506e82030000 pid=898 /tmp/sample.bin net send-data zombie guuid=b41ff992-7800-0000-22db-506e7d030000 pid=893->guuid=13ee4cbe-7900-0000-22db-506e82030000 pid=898 clone guuid=b2a4e093-7800-0000-22db-506e7f030000 pid=895 /tmp/sample.bin guuid=3c6ddb93-7800-0000-22db-506e7e030000 pid=894->guuid=b2a4e093-7800-0000-22db-506e7f030000 pid=895 clone guuid=eb4de493-7800-0000-22db-506e80030000 pid=896 /tmp/sample.bin net send-data zombie guuid=3c6ddb93-7800-0000-22db-506e7e030000 pid=894->guuid=eb4de493-7800-0000-22db-506e80030000 pid=896 clone guuid=eb4de493-7800-0000-22db-506e80030000 pid=896->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1575B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=eb4de493-7800-0000-22db-506e80030000 pid=896->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B guuid=13ee4cbe-7900-0000-22db-506e82030000 pid=898->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1610B guuid=13ee4cbe-7900-0000-22db-506e82030000 pid=898->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bcdfbda0-7a58-4b22-8a03-e98de3e6ab01
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-07 13:52:26 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wihet5wzifvbox2oyeibjlspqqgi5y34nvrn4ksu2xc2vmzaxkma._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/260707-rtht7sgs2k/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Family: Mirai
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: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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 b20e49f6d9416a175f4ec11014ae4f840c8ee37c6d62de2a54d5c5aab320ba98

(this sample)

Mirai

elf f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f

  
URLhaus
https://urlhaus.abuse.ch/url/3883483/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 f19bfc2ae4fa172b128778a33eba86f3da58c8ee9666cbfed5958d7a1ae1b16f
  
Dropping
MD5 24e80ec2f6e93a8d0853fa9ee084cc7d

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