9adcd3f4f01336f3feec290a1a2ae01fec67a09078547c574cca225c710a403d

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	ncsa.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	14287df8a3f5589f8468c7cb251f2373.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	ncsa.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	ncsa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	14287df8a3f5589f8468c7cb251f2373.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"	ncsa.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)	\??\Z:	ncsa.exe
File opened (read-only)	\??\E:	ncsa.exe
File opened (read-only)	\??\J:	ncsa.exe
File opened (read-only)	\??\M:	ncsa.exe
File opened (read-only)	\??\N:	ncsa.exe
File opened (read-only)	\??\X:	ncsa.exe
File opened (read-only)	\??\B:	ncsa.exe
File opened (read-only)	\??\K:	ncsa.exe
File opened (read-only)	\??\R:	ncsa.exe
File opened (read-only)	\??\U:	ncsa.exe
File opened (read-only)	\??\S:	ncsa.exe
File opened (read-only)	\??\V:	ncsa.exe
File opened (read-only)	\??\G:	ncsa.exe
File opened (read-only)	\??\I:	ncsa.exe
File opened (read-only)	\??\L:	ncsa.exe
File opened (read-only)	\??\O:	ncsa.exe
File opened (read-only)	\??\W:	ncsa.exe
File opened (read-only)	\??\Y:	ncsa.exe
File opened (read-only)	\??\H:	ncsa.exe
File opened (read-only)	\??\P:	ncsa.exe
File opened (read-only)	\??\Q:	ncsa.exe
File opened (read-only)	\??\T:	ncsa.exe

Drops file in System32 directory 6 IoCs

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

Drops file in Program Files directory 27 IoCs

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

Modifies registry class 36 IoCs

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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3036	14287df8a3f5589f8468c7cb251f2373.exe
4212	ncsa.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 4212	3036	14287df8a3f5589f8468c7cb251f2373.exe	89
PID 3036 wrote to memory of 4212	3036	14287df8a3f5589f8468c7cb251f2373.exe	89
PID 3036 wrote to memory of 4212	3036	14287df8a3f5589f8468c7cb251f2373.exe	89

C:\Users\Admin\AppData\Local\Temp\14287df8a3f5589f8468c7cb251f2373.exe
"C:\Users\Admin\AppData\Local\Temp\14287df8a3f5589f8468c7cb251f2373.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies system executable filetype association
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3036
- \??\c:\Documents and Settings\Admin\Application Data\Microsoft\ncsa.exe
  "c:\Documents and Settings\Admin\Application Data\Microsoft\ncsa.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:4212

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

C:\Users\Admin\AppData\Roaming\Microsoft\ncsa.exe

Filesize
76KB

MD5
21e5fe5ca6eddf8c1f1838963a0a2baf

SHA1
a496821a632741acae36d12656c19a8fbbc2da24

SHA256
f072f422e0180ccd6d8eed52195833333bb9d9fa44a19837e0027ee96b3a7654

SHA512
48bf58582454dbf28d7a5f92dc14572d30bf76a06aed8c02fb2f3d683226b88cbfe5f29eed1ff1a59fdea9755e2252d3e0df9b5cdac6763a56d7ce005e6661c0

Download Submit
\??\c:\windows\SysWOW64\Windows 3D.scr

Filesize
76KB

MD5
433d2ffac69d00ed101afcc7fd631496

SHA1
0b45c0293699282619d6e188e44714893d49c2e5

SHA256
dfc48b0e57bd852d4909214001f9b139b43e5b4387c213a1365bce2e260a6279

SHA512
eedc66abfdcd4c42b0e63d5767be82a4001ab991d9d4eeededcb655bd12649b65f4888b34fce42abe21902392434389006b7964843c3db36fc4cffdad3627921

Download Submit
\??\c:\windows\SysWOW64\maxtrox.txt

Filesize
8B

MD5
24865ca220aa1936cbac0a57685217c5

SHA1
37f687cafe79e91eae6cbdffbf2f7ad3975f5e83

SHA256
841e95fa333ed89085bfbab19bb658d96ed0c837d25721411233fa55c860c743

SHA512
c8d3f514c72f48fed5de9582c4252cf5466a9d32866d8df3631ba9274ed734bb95139e4909e8116a10947fc1afa1dbeb33809da6ec050e6e4eb83d5241aeb062

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads