MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057. 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: b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057
SHA3-384 hash: 2ef31b71cf6599581a3bca1fc802486f2413a1d5c0edda8627d6b6b73be1acca14eeeed83ab385433c21cdcf374a0854
SHA1 hash: 4d42cf3d1e8cb59d7200851496395868fea31447
MD5 hash: e25739c8b909b557dc0d3a82b37eb4e7
humanhash: seven-angel-blue-golf
File name:xnxnxnxnxnxnxnxnx86_64xnxn
Download: download sample
Signature Mirai
Create hunting rule
File size:61'696 bytes
First seen:2025-11-22 15:46:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:tSnwqXuWX8E5i37JCN8SOWM0s52w5ODwIsAQX:UnreWX/w7UNogwarQX
TLSH T15C5301BF86F3C7E8EC744870722E4E42D8EE2634D48197E6928A7EF74A27C10C04B546
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 gafgyt UPX
File size (compressed) :61'696 bytes
File size (de-compressed) :132'064 bytes
Format:linux/amd64
Unpacked file: 470918cbbf9a7bba8968ec8012921eb98b0fd43451ca57625ffa09195871a8ab

Intelligence

File Origin
# of uploads :
1
# of downloads :
42
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Creating a file in the %temp% directory
Receives data from a server
Creating a file
Locks files
Sends data to a server
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gafgyt packed upx
Link:
https://www.filescan.io/uploads/6921db0af96b58f0dc801a38/reports/38ec4d65-905f-4352-9e6d-a3ee5f4e6d9b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
2
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057
Behaviour
Anti-VM
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-11-22T14:05:00Z UTC
Last seen:
2025-11-23T01:47:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a4fc4640-8434-4468-b04f-037550fc3ff7
Result
Threat name:
n/a
Detection:
suspicious
Classification:
evad
Score:
21 / 100
Link:
https://www.joesandbox.com/analysis/1819101
Signature
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-11-22 15:47:24 UTC
File Type:
ELF64 Little (Exe)
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wm6p4e7uzphfdu3i65meqtpf6hmeefvm4fwarpk2zd5zjckggblq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251122-s8cr6symgy/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads system network configuration
Checks hardware identifiers (DMI)
Enumerates active TCP sockets
Deletes Audit logs
Deletes journal logs
Deletes system logs
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a0138d5c-430c-434f-a1cf-b656b8e56610
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057

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 b33cfe13f4cbce51d368f758484de5f1d84216ace16c08bd5ac8fb9489463057

(this sample)

Mirai

elf 470918cbbf9a7bba8968ec8012921eb98b0fd43451ca57625ffa09195871a8ab

  
URLhaus
https://urlhaus.abuse.ch/url/3713392/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 470918cbbf9a7bba8968ec8012921eb98b0fd43451ca57625ffa09195871a8ab
  
Dropping
MD5 eb96d5d3adcf4855287ab59d1966ad94
  
URLhaus
https://urlhaus.abuse.ch/url/3713416/

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