9adcd3f4f01336f3feec290a1a2ae01fec67a09078547c574cca225c710a403d

Analysis

max time kernel
102s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 21:58

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General

Target

14287df8a3f5589f8468c7cb251f2373.exe
Size

76KB
MD5

14287df8a3f5589f8468c7cb251f2373
SHA1

d76437768f86735273491fe26390e35ea53596b8
SHA256

9adcd3f4f01336f3feec290a1a2ae01fec67a09078547c574cca225c710a403d
SHA512

760f0e6d1a3e827d59bc982d14622848da1a835f35b0538a16d18886fe54a09543c2769a0bd62b25adc14ee2997cd4adc93560a4d39030a05808816a3b134075
SSDEEP

768:RZVy+DZ4mV+RMO2rhgFwuqCbxTGy/BBGg4NKhLU4dhbDW2+Kv00dX0vN0TlT+Xya:7amlu3hbBGy3G8nhMpDz

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	14287df8a3f5589f8468c7cb251f2373.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	ndst.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	ndst.exe

Loads dropped DLL 2 IoCs

pid	Process
2536	14287df8a3f5589f8468c7cb251f2373.exe
2536	14287df8a3f5589f8468c7cb251f2373.exe

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	ndst.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VisualStyle = "c:\\windows\\system32\\Desktop.sysm"	ndst.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\O:	ndst.exe
File opened (read-only)	\??\R:	ndst.exe
File opened (read-only)	\??\Z:	ndst.exe
File opened (read-only)	\??\G:	ndst.exe
File opened (read-only)	\??\I:	ndst.exe
File opened (read-only)	\??\K:	ndst.exe
File opened (read-only)	\??\Q:	ndst.exe
File opened (read-only)	\??\V:	ndst.exe
File opened (read-only)	\??\Y:	ndst.exe
File opened (read-only)	\??\E:	ndst.exe
File opened (read-only)	\??\H:	ndst.exe
File opened (read-only)	\??\M:	ndst.exe
File opened (read-only)	\??\P:	ndst.exe
File opened (read-only)	\??\S:	ndst.exe
File opened (read-only)	\??\J:	ndst.exe
File opened (read-only)	\??\L:	ndst.exe
File opened (read-only)	\??\N:	ndst.exe
File opened (read-only)	\??\W:	ndst.exe
File opened (read-only)	\??\X:	ndst.exe
File opened (read-only)	\??\B:	ndst.exe
File opened (read-only)	\??\T:	ndst.exe
File opened (read-only)	\??\U:	ndst.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\maxtrox.txt	14287df8a3f5589f8468c7cb251f2373.exe
File created	\??\c:\windows\SysWOW64\Windows 3D.scr	14287df8a3f5589f8468c7cb251f2373.exe
File opened for modification	\??\c:\windows\SysWOW64\maxtrox.txt	ndst.exe
File opened for modification	\??\c:\windows\SysWOW64\Windows 3D.scr	ndst.exe
File created	\??\c:\windows\SysWOW64\Desktop.sysm	ndst.exe
File created	\??\c:\windows\SysWOW64\CommandPrompt.Sysm	ndst.exe

Drops file in Program Files directory 34 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\Internet Explorer\ielowutil.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\plugin-container.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpenc.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmprph.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Defender\MpCmdRun.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Mail\wabmig.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Sidebar\sidebar.exe	ndst.exe
File opened for modification	\??\c:\Program Files\7-Zip\7z.exe	ndst.exe
File opened for modification	\??\c:\Program Files\7-Zip\7zG.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\firefox.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\private_browsing.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmplayer.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\ieinstal.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\iexplore.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\minidump-analyzer.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Mail\wab.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\WMPDMC.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\iediagcmd.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\crashreporter.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\pingsender.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Defender\MSASCui.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmlaunch.exe	ndst.exe
File opened for modification	\??\c:\Program Files\7-Zip\Uninstall.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\default-browser-agent.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpshare.exe	ndst.exe
File opened for modification	\??\c:\Program Files\7-Zip\7zFM.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpconfig.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpnetwk.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\maintenanceservice.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\updater.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Journal\PDIALOG.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpnscfg.exe	ndst.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\WMPSideShowGadget.exe	ndst.exe

Modifies registry class 36 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	14287df8a3f5589f8468c7cb251f2373.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	ndst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	ndst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	14287df8a3f5589f8468c7cb251f2373.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	14287df8a3f5589f8468c7cb251f2373.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2536	14287df8a3f5589f8468c7cb251f2373.exe
2636	ndst.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2636	2536	14287df8a3f5589f8468c7cb251f2373.exe	18
PID 2536 wrote to memory of 2636	2536	14287df8a3f5589f8468c7cb251f2373.exe	18
PID 2536 wrote to memory of 2636	2536	14287df8a3f5589f8468c7cb251f2373.exe	18
PID 2536 wrote to memory of 2636	2536	14287df8a3f5589f8468c7cb251f2373.exe	18

C:\Users\Admin\AppData\Local\Temp\14287df8a3f5589f8468c7cb251f2373.exe
"C:\Users\Admin\AppData\Local\Temp\14287df8a3f5589f8468c7cb251f2373.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2536
- \??\c:\Documents and Settings\Admin\Application Data\Microsoft\ndst.exe
  "c:\Documents and Settings\Admin\Application Data\Microsoft\ndst.exe" 14287df8a3f5589f8468c7cb251f2373
  2⤵
  - Modifies visibility of file extensions in Explorer
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - Enumerates connected drives
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\Microsoft\ndst.exe

Filesize
32KB

MD5
ae9b29f25eeba1b9c7a61be24df1caf6

SHA1
6daf687441588e74e1479e890fbc796e6032ad1d

SHA256
944d5e4c32044105130a8218b9b44d698de2322309dddf8e8f213a36369da028

SHA512
93323c634d9cb51ab3483abd4dca8a3f05bd1f9d362119a94dca2e9f6c02bceb14b090e833ed203b064400afe0b01225ce186bb61593d0ba43a9a254bb1d0928

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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