ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
24/05/2024, 03:17

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General

Target

ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Size

76KB
MD5

6bea1207da20349ef8761a9434096979
SHA1

05dc39c060a37cd8fb150345af10c917f5165c44
SHA256

ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c
SHA512

e75a12824ad30de597c67725c840530b3e491a3385d5cfada36d9e173c73f9b694c94d607db0621030c005ee26fb98e329366892cd7bd0194175ca6e4c68799a
SSDEEP

768:sembNRqsuhlGOBrhgFwumSCbxTGy/BBGg4NKJJKqUThbJ32+ve7i40vN0TlT+XkF:mnqdu3abBGy3G8V0iuoN

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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	ncsv.exe

Modifies visiblity of hidden/system files 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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	ncsv.exe

Executes dropped EXE 1 IoCs

pid	Process
4916	ncsv.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	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	ncsv.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"	ncsv.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)	\??\J:	ncsv.exe
File opened (read-only)	\??\P:	ncsv.exe
File opened (read-only)	\??\W:	ncsv.exe
File opened (read-only)	\??\I:	ncsv.exe
File opened (read-only)	\??\N:	ncsv.exe
File opened (read-only)	\??\R:	ncsv.exe
File opened (read-only)	\??\X:	ncsv.exe
File opened (read-only)	\??\Y:	ncsv.exe
File opened (read-only)	\??\U:	ncsv.exe
File opened (read-only)	\??\B:	ncsv.exe
File opened (read-only)	\??\H:	ncsv.exe
File opened (read-only)	\??\L:	ncsv.exe
File opened (read-only)	\??\M:	ncsv.exe
File opened (read-only)	\??\O:	ncsv.exe
File opened (read-only)	\??\Q:	ncsv.exe
File opened (read-only)	\??\T:	ncsv.exe
File opened (read-only)	\??\E:	ncsv.exe
File opened (read-only)	\??\G:	ncsv.exe
File opened (read-only)	\??\K:	ncsv.exe
File opened (read-only)	\??\S:	ncsv.exe
File opened (read-only)	\??\V:	ncsv.exe
File opened (read-only)	\??\Z:	ncsv.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\maxtrox.txt	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
File created	\??\c:\windows\SysWOW64\Windows 3D.scr	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
File opened for modification	\??\c:\windows\SysWOW64\maxtrox.txt	ncsv.exe
File opened for modification	\??\c:\windows\SysWOW64\Windows 3D.scr	ncsv.exe
File created	\??\c:\windows\SysWOW64\Desktop.sysm	ncsv.exe
File created	\??\c:\windows\SysWOW64\CommandPrompt.Sysm	ncsv.exe

Drops file in Program Files directory 27 IoCs

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

Modifies registry class 36 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	ncsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	ncsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	ncsv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
452	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
4916	ncsv.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 4916	452	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe	91
PID 452 wrote to memory of 4916	452	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe	91
PID 452 wrote to memory of 4916	452	ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe	91

C:\Users\Admin\AppData\Local\Temp\ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe
"C:\Users\Admin\AppData\Local\Temp\ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Modifies system executable filetype association
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:452
- \??\c:\Documents and Settings\Admin\Application Data\Microsoft\ncsv.exe
  "c:\Documents and Settings\Admin\Application Data\Microsoft\ncsv.exe" ca079a30cf36704389fdd75ea7ce59545dfbd9e9c4aa768c91d9e4e6b76d6a5c
  2⤵
  - Modifies visibility of file extensions in Explorer
  - Modifies visiblity of hidden/system files 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:4916

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:2224

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\ncsv.exe

Filesize
76KB

MD5
7f00dc0c70fd6220e07fec56365f4872

SHA1
1e87d6b4fbb3b5dfe994495e7f39e85833f0ee7d

SHA256
ae58a2ad5404e7bf6bd55777726e848d7d7bca5144cbbeaba3b0b852c0a8434c

SHA512
6d6541aed285a62972c011feb57d8884acb5be655dc0490584703ee9635a939265824e281829c5a876c19d8e00a6ce24d44808a78286b8919deb6ee64c603d4f

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

Filesize
76KB

MD5
85340d5048a8398cc43ea068174824c7

SHA1
da2fc9f0abcafa18ec183d156aa94f1733455396

SHA256
3ad3638aabc5bd9e3d003936701b6cf32091944afc12e7f6160a2735957a50f2

SHA512
f9f7a20882a8507433875e930da4a3a98c00757155acf1d17ec0e628fbb444482102a946cce7ec1662c7107caf4728f0a902626e8a2ed394820a68ccb75af82e

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

Filesize
8B

MD5
24865ca220aa1936cbac0a57685217c5

SHA1
37f687cafe79e91eae6cbdffbf2f7ad3975f5e83

SHA256
841e95fa333ed89085bfbab19bb658d96ed0c837d25721411233fa55c860c743

SHA512
c8d3f514c72f48fed5de9582c4252cf5466a9d32866d8df3631ba9274ed734bb95139e4909e8116a10947fc1afa1dbeb33809da6ec050e6e4eb83d5241aeb062

Download Submit
memory/4916-34-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-32-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-33-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-31-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-35-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-36-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-37-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-38-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-39-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-40-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-41-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4916-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads