459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83b

Analysis

max time kernel
118s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 11:39

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General

Target

459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Size

76KB
MD5

c5f54aa98d9b341b2ceb83459528d460
SHA1

b8beb5f15111a45804d6f596fe7438eba9d7d6e5
SHA256

459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83b
SHA512

ad9f4eda59744723c19dd808efac0d95b2f843162fa874a348e9340e3c65aaccf347d58d71c589fee25acede4381f5f9815cc46567e70097785f61c28ca9b7c3
SSDEEP

768:lembNRqsuhlGOBrhgFwumSCbxTGy/BBGg4NKJJKqUThbJ32+ve7i40vN0TlT+Xk6:Lnqdu3abBGy3G8V0iuoi

Score

10^/10

discovery 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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	dsnv.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	dsnv.exe

Executes dropped EXE 1 IoCs

pid	Process
1956	dsnv.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	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.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"	dsnv.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:	dsnv.exe
File opened (read-only)	\??\P:	dsnv.exe
File opened (read-only)	\??\Q:	dsnv.exe
File opened (read-only)	\??\S:	dsnv.exe
File opened (read-only)	\??\K:	dsnv.exe
File opened (read-only)	\??\M:	dsnv.exe
File opened (read-only)	\??\V:	dsnv.exe
File opened (read-only)	\??\X:	dsnv.exe
File opened (read-only)	\??\Y:	dsnv.exe
File opened (read-only)	\??\E:	dsnv.exe
File opened (read-only)	\??\H:	dsnv.exe
File opened (read-only)	\??\R:	dsnv.exe
File opened (read-only)	\??\U:	dsnv.exe
File opened (read-only)	\??\G:	dsnv.exe
File opened (read-only)	\??\N:	dsnv.exe
File opened (read-only)	\??\J:	dsnv.exe
File opened (read-only)	\??\L:	dsnv.exe
File opened (read-only)	\??\T:	dsnv.exe
File opened (read-only)	\??\W:	dsnv.exe
File opened (read-only)	\??\Z:	dsnv.exe
File opened (read-only)	\??\B:	dsnv.exe
File opened (read-only)	\??\I:	dsnv.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\maxtrox.txt	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
File created	\??\c:\windows\SysWOW64\Windows 3D.scr	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
File opened for modification	\??\c:\windows\SysWOW64\maxtrox.txt	dsnv.exe
File opened for modification	\??\c:\windows\SysWOW64\Windows 3D.scr	dsnv.exe
File created	\??\c:\windows\SysWOW64\Desktop.sysm	dsnv.exe
File created	\??\c:\windows\SysWOW64\CommandPrompt.Sysm	dsnv.exe

Drops file in Program Files directory 27 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dsnv.exe

Modifies registry class 36 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	dsnv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	dsnv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	dsnv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2620	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
1956	dsnv.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 1956	2620	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe	82
PID 2620 wrote to memory of 1956	2620	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe	82
PID 2620 wrote to memory of 1956	2620	459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe	82

C:\Users\Admin\AppData\Local\Temp\459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.exe
"C:\Users\Admin\AppData\Local\Temp\459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN.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
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2620
- \??\c:\Documents and Settings\Admin\Application Data\Microsoft\dsnv.exe
  "c:\Documents and Settings\Admin\Application Data\Microsoft\dsnv.exe" 459fb0c452217afee2803047c10b9984ba9deba396e491368a6d57e0a0c6e83bN
  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
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:1956

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
76KB

MD5
2eaabfdcf3742c35f327725ce3c4f599

SHA1
b527da43bac41ea6767454ff5c2f2727586301d6

SHA256
3f87592a38d97099f1ca180686e2828e3271bd0ec122a26921688c366babaf9b

SHA512
c4d6c7b7f75eaef3cc5b893c245afd447398a3fe0bcee6d24e0de69b0071c7f173e9ec8d21357828025821a7be72a01492dec6f774d349697bcce9fc9be55853

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

Filesize
76KB

MD5
09a08493881c94ff4c5856e2d67f745f

SHA1
3b20b7c0305cf4ece33729214990fa284f83afd1

SHA256
070bde3ff1b96145631ae50ea1f2ade1c9e96ada23f5e9670cc4f216e9e4c0d5

SHA512
cc315935e00a3480b34e4588f41b845a82bb3ff839a64c615e026b6f16dc5177d954cee3a1c9acfde5c7461863005a5e9dafe1270f52defa5593b9d43422921b

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

Filesize
8B

MD5
24865ca220aa1936cbac0a57685217c5

SHA1
37f687cafe79e91eae6cbdffbf2f7ad3975f5e83

SHA256
841e95fa333ed89085bfbab19bb658d96ed0c837d25721411233fa55c860c743

SHA512
c8d3f514c72f48fed5de9582c4252cf5466a9d32866d8df3631ba9274ed734bb95139e4909e8116a10947fc1afa1dbeb33809da6ec050e6e4eb83d5241aeb062

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads