MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f. 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


NetSupport


Vendor detections: 7


Intelligence 7 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f
SHA3-384 hash: b761208ff68d7da04d3b5a59e8efa9540765b760e206b761c7062fd700216e84e1cbca72e433c87a9f0b6428516e9352
SHA1 hash: b20ca1e029ee14cf59bd64a5a7f1078251d32f2e
MD5 hash: bc5b34a8762b2f99f0e831c41e99ff6f
humanhash: hawaii-monkey-fifteen-timing
File name:josmzn.zip
Download: download sample
Signature NetSupport
Create hunting rule
File size:2'432'050 bytes
First seen:2025-10-23 16:15:44 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 49152:B5PWZ5FvcBI66J3WM202p5GutgAJuIxyxWBvZZiFSg:rP+U989i7JDmWgFB
TLSH T138B533272F8703F3713B90A9E6607F224404922C67BE7576A61B38E3787B7759311E84
Magika zip
Reporter monitorsg
Tags:5-252-177-8 NetSupport SmartApeSG zip


Avatar
monitorsg
hXXps://islonline[.]org/d.js (injected) --> hXXps://polysies[.]com/xss/buf.js --> hXXps://polysies[.]com/xss/index.php --> hXXps://polysies[.]com/xss/bof.js (clickfix) --> hXXps://orthodoxlynchburg[.]com/yigw (HTA) --> hXXps://powerbrokermagazine[.]com/josmzn.zip (ZIP) --> 5[.]252.177.8:443 (NetSupport, XMLCTL, NSM303008)

Intelligence

File Origin
# of uploads :
1
# of downloads :
179
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.RMS.227.27668.8844.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.8291.20066.UNOFFICIAL
Create hunting rule

PUA.Win.Packer.BorlandDelphiKo-1
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.4931.20486.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.6774.30868.UNOFFICIAL
Create hunting rule

PUA.Win.Tool.NetSupport-10022498-8
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.3564.9146.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.RA.587.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.19536.7356.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Program.RemoteAdmin.837.11923.27396.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ec1eb7f2ca2f143e41ccd1
Tags:
injection netsup virus remo
Verdict:
Unknown
Threat level:
n/a  -.1.0/10
Confidence:
100%
Tags:
anti-debug expired-cert exploit fingerprint microsoft_visual_cc signed
Link:
https://www.filescan.io/uploads/68fa54c8c67f5a3f3d5926e1/reports/30ebe823-d831-4755-a49b-0281350170bd/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f
Verdict:
Malicious
File Type:
zip
First seen:
2025-10-23T14:19:00Z UTC
Last seen:
2025-10-23T14:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f/results?tab=lookup
Score:
85%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-10-23 16:16:56 UTC
File Type:
Binary (Archive)
Extracted files:
455
AV detection:
15 of 37 (40.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fwmwlcthdh4yp3zoufc7wflng5xmvojhzjtrbrcso3tsysekikhq._file
Result
Malware family:
netsupport
Create hunting rule
Score:
  10/10
Tags:
family:netsupport discovery rat
Link:
https://tria.ge/reports/251023-vb4whafx4e/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f

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:ach_NetSupportRAT_Config
Create hunting rule
Author:abuse.ch
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

NetSupport

zip 2d99658a6719f987ef2ea145fb156d376ecab927ca6710c45276e72c488a428f

(this sample)

  
Link
https://infosec.exchange/@monitorsg/115424371781475664
  
Delivery method
Distributed via web download

Comments