MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d
SHA3-384 hash: b6412fed1b3abb3dc32e2f103db36535eca2f820f5c6560535d522ae0f4e4259871fa388dc3458383d0d658b05a57f0e
SHA1 hash: ffdc3d6b0eb0dd109d2fe9e2a1f21822543c37b2
MD5 hash: 7327b4f7468a5fffd60866e8819b42b9
humanhash: pluto-snake-mississippi-arkansas
File name:ysoserial.exe
Download: download sample
File size:528'896 bytes
First seen:2024-09-29 20:22:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'131 x AgentTesla, 20'159 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 12288:SlSDdhQhPy5Znro6V63YEiawjwjjwmIv7/4gGU/zP:Sl5py5Znro6V63YEiawjwjjwmIv7/4gV
TLSH T16FB43012A7EE0614F2F71F39A9B695604AB7BC1AAD3DC64D054CA54E0FB3B40C821F67
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter NDA0E
Tags:exe exploit hacktool ysoserial

Intelligence

File Origin
# of uploads :
1
# of downloads :
488
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ysoserial.exe
Verdict:
No threats detected
Analysis date:
2024-09-29 20:26:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a100d717-971c-4776-9695-e87c166e6fec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.HacktoolX-gen.10740.2090.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66fac3b6c85f12c405da6b8f
Tags:
Hacktool Exploit Msil
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin net remote
Link:
https://www.filescan.io/uploads/66f9b727718049dcaee49ccd/reports/6e97687f-065d-4dc6-b528-46021ebade57/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0ac9065e-a689-463b-a315-c7ef674c98bc
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1522318
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
71%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d/
Threat name:
Win32.Hacktool.Vusrlize
Create hunting rule
Status:
Malicious
First seen:
2024-09-29 11:07:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
17 of 24 (70.83%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xzk7bfyhcom3btyk3hpvk27c2svcdhmxlpox355flveyyjh36yoq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/240929-y54z5syekn/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Verdict:
Suspicious
Tags:
red_team_tool
YARA:
HKTL_NET_GUID_ysoserial_net
Link:
https://app.threat.zone/submission/a9c99093-6f78-4fc8-9db7-5a62e52e783b
Unpacked files
SH256 hash:
be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d
MD5 hash:
7327b4f7468a5fffd60866e8819b42b9
SHA1 hash:
ffdc3d6b0eb0dd109d2fe9e2a1f21822543c37b2
Detections:
HKTL_NET_GUID_ysoserial_net
Create hunting rule
Link:
https://www.unpac.me/results/94a49648-2836-4e8a-9712-08dc4a14cfa3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d

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:HKTL_NET_GUID_ysoserial_net
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects c# red/black-team tools via typelibguid
Reference:https://github.com/pwntester/ysoserial.net
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

zip d76fd7aac98d03e9999572fc8adc034176feb0a36b9995e985b7de9d18162119

Executable exe be55f097071399b0cf0ad9df556be2d4aa219d975bdd7df7a55d498c24fbf61d

(this sample)

  
Dropped by
SHA256 d76fd7aac98d03e9999572fc8adc034176feb0a36b9995e985b7de9d18162119
  
URLhaus
https://urlhaus.abuse.ch/url/3200140/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 7a46b9a7570c86ab7459487607b7340b

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments