MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1. 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


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1
SHA3-384 hash: 506f4f2570c07e4aa36ebb8e9681a1f6ffcb3b9768624f0ced3e228ecd8d72c0a1e0e0764d25d27e4f7f013d63ccecc8
SHA1 hash: 01887353db75835d6644ecd4e6d1e1fac6151ffd
MD5 hash: 5fd7bbea4521750e4575452071126e18
humanhash: nine-aspen-pasta-neptune
File name:fubuki.vtuber
Download: download sample
File size:1'681'436 bytes
First seen:2025-12-01 20:34:29 UTC
Last seen:2025-12-02 10:24:50 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:s1aZvWgiVblmavGsygKV2XgOViLeh4PD8n:xpeblLOsXNDC6
TLSH T124753334DEC68B96D2B9A7DAAD6DC3D0F90A97187B894EE44401DCC62D34E7C8613933
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 juroots
Tags:elf vtuber

Intelligence

File Origin
# of uploads :
3
# of downloads :
28
Origin country :
IL IL
Vendor Threat Intelligence
Details
No details
Detection(s):
SecuriteInfo.com.Linux.Siggen.10938.1087.5775.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
Sends data to a server
Creating a process from a recently created file
Connection attempt
Kills critical processes
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/692dfc7fcb025007b128bf20/reports/c2315eb0-1295-4c3b-8b69-634d4a44f170/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-12-01T05:14:00Z UTC
Last seen:
2025-12-01T07:34:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/af7890fc-aa24-4aa2-b5a2-0693b69c9b3a
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqszzzoxu4pg2sr7c7zwousq7baojoobxhwitlmddg7tsfwsqhaq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/251201-zdc8savrej/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/af72cd84-2fe6-4f23-bc06-b1abdf10dd8f
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/c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1

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: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

elf c4259ce5d7a71e6d4a3f17f3675250f840e4b9c1b9ec89ad8319bf3916d281c1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3722944/
  
Delivery method
Distributed via web download

Comments