MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b
SHA3-384 hash: fa0536f763a5bf2957cfed242721251a5ecc100d4a8eee18782d427fb6137a372c9ac47f79ec4cd751776b00935f8f7a
SHA1 hash: 62a156bb035d9937822070c5717b5ba5b79b7e50
MD5 hash: c7b569440730873f3d51c139d112abf0
humanhash: network-tennessee-idaho-butter
File name:mumei.vtuber
Download: download sample
File size:1'695'448 bytes
First seen:2025-12-01 20:34:50 UTC
Last seen:2025-12-02 10:24:07 UTC
File type: elf
MIME type:application/x-executable
ssdeep 24576:JPsXEQteyjlOZDuPS9ak3jX3SpS9vzLCjv1xkcECX9oU7JwJqWxfF1lX737pAjwf:a0l4UuPS9aampv1mBUCsil3pAjmGW
TLSH T1FE75334A096AD8398DF7A330CAECC57C97E6D9765E85AE9308D8C4304575B2E783338D
telfhash t10190025b8dc0003e84616460149d8364ab4718a56d21240e1d28c66473116c2610495d
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.10940.21711.20375.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Receives data from a server
Opens a port
Sends data to a server
Creating a process from a recently created file
Substitutes an application name
Kills critical processes
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/692dfc2ee27be4043a43e242/reports/86c31b68-a2c5-447d-8a75-6acceb4d1adb/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
54
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-01T05:16:00Z UTC
Last seen:
2025-12-01T08:51:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a95a41ec-5951-4eff-83c4-1a2b95af1fce
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b/
Threat name:
Linux.Exploit.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-12-01 09:14:02 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thravxl5o6o2ek4ate4obs7vb5655molgcgijahp4dqnyminlffq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery upx
Link:
https://tria.ge/reports/251201-zdr2ya1rew/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Unexpected DNS network traffic destination
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a4511bb7-fa39-4f8f-83ef-c159f3c81fb9
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/99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b

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 99e20add7d779da22b809938e0cbf50f7ddeb1cb308c8480efe0e0dc310d594b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3722934/
  
Delivery method
Distributed via web download

Comments