a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd

General

Target

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Size

76KB
MD5

6e1439bdab6d58db4953d9f7c71515d5
SHA1

6036836413170b6b33478462c2b93e41489edcf6
SHA256

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd
SHA512

a73d66739c0d400e658c727f28962d13dab4c0a9d54d0a5b4a86b74b74d3206c181d37251d3965cdd4a5e18b1480c22b74e839848e91274fcf8af7ea9c2bac55
SSDEEP

768:vembNRqsuhlGOBrhgFwumSCbxTGy/BBGg4NKJJKqUThbJ32+ve7i40vN0TlT+Xk+:Bnqdu3abBGy3G8V0iuo2j

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exewvcv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	wvcv.exe

Modifies visibility of file extensions in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exewvcv.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	wvcv.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

wvcv.exea768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	wvcv.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe

Executes dropped EXE 1 IoCs

Processes:

wvcv.exe

pid process

1776 wvcv.exe

pid	process
1776	wvcv.exe

Loads dropped DLL 2 IoCs

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe

pid	process
1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wvcv.exe

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

Enumerates connected drives 3 TTPs 23 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

Processes:

wvcv.exe

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

Drops file in System32 directory 6 IoCs

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exewvcv.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\maxtrox.txt	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
File created	\??\c:\windows\SysWOW64\Windows 3D.scr	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
File opened for modification	\??\c:\windows\SysWOW64\maxtrox.txt	wvcv.exe
File opened for modification	\??\c:\windows\SysWOW64\Windows 3D.scr	wvcv.exe
File created	\??\c:\windows\SysWOW64\Desktop.sysm	wvcv.exe
File created	\??\c:\windows\SysWOW64\CommandPrompt.Sysm	wvcv.exe

Drops file in Program Files directory 34 IoCs

Processes:

wvcv.exe

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

Modifies registry class 36 IoCs

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exewvcv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	wvcv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	wvcv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	wvcv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exewvcv.exe

pid process

1204 a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
1776 wvcv.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe

description	pid	process	target process
PID 1204 wrote to memory of 1776	1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe	wvcv.exe
PID 1204 wrote to memory of 1776	1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe	wvcv.exe
PID 1204 wrote to memory of 1776	1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe	wvcv.exe
PID 1204 wrote to memory of 1776	1204	a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe	wvcv.exe

C:\Users\Admin\AppData\Local\Temp\a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe
"C:\Users\Admin\AppData\Local\Temp\a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd.exe"
1⤵
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204

\??\c:\Documents and Settings\Admin\Application Data\Microsoft\wvcv.exe
"c:\Documents and Settings\Admin\Application Data\Microsoft\wvcv.exe" a768daccb7c385a94f0274b625ef5c4d24729efc797f5ee0239f55aa49f4d1bd
2⤵
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- 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:1776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
76KB

MD5
299de68e864ebecb585251ed5984f0ba

SHA1
584b4acccbe5532dae61660dfc48bf86a98110f3

SHA256
7d23dd841d3f97651fe6196ca7121a8d3b93289cfcd6d00c86fc777c3f4c94da

SHA512
29060dd7aebf7202edb294a51076d6adb886d0a12b1128dca1f38717820f8c3e7979277e16b54c6991c8efa569dc977c8cdd8d1b19585ff4a58477b03b072f38

Download Submit
\??\c:\Documents and Settings\Admin\Application Data\Microsoft\wvcv.exe

Filesize
76KB

MD5
299de68e864ebecb585251ed5984f0ba

SHA1
584b4acccbe5532dae61660dfc48bf86a98110f3

SHA256
7d23dd841d3f97651fe6196ca7121a8d3b93289cfcd6d00c86fc777c3f4c94da

SHA512
29060dd7aebf7202edb294a51076d6adb886d0a12b1128dca1f38717820f8c3e7979277e16b54c6991c8efa569dc977c8cdd8d1b19585ff4a58477b03b072f38

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

Filesize
76KB

MD5
fe0c547de2f1e7696fa8a3910969fe78

SHA1
aa4fb200c6b23fb581c437fe8e0e4e9d098245b7

SHA256
96d70d6e22a864f93ff6de0af233a8e1c3fc660a12d0897230cf240381013047

SHA512
f61fa0602e13663dc892dcfae07f954d69711db8dd0168bb8ce2f495c03b2df58019e0b6b92d0a40be64e361e222cc8d1caf074a7af27e952dea7a1dde1abcbc

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

Filesize
8B

MD5
24865ca220aa1936cbac0a57685217c5

SHA1
37f687cafe79e91eae6cbdffbf2f7ad3975f5e83

SHA256
841e95fa333ed89085bfbab19bb658d96ed0c837d25721411233fa55c860c743

SHA512
c8d3f514c72f48fed5de9582c4252cf5466a9d32866d8df3631ba9274ed734bb95139e4909e8116a10947fc1afa1dbeb33809da6ec050e6e4eb83d5241aeb062

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\wvcv.exe

Filesize
76KB

MD5
299de68e864ebecb585251ed5984f0ba

SHA1
584b4acccbe5532dae61660dfc48bf86a98110f3

SHA256
7d23dd841d3f97651fe6196ca7121a8d3b93289cfcd6d00c86fc777c3f4c94da

SHA512
29060dd7aebf7202edb294a51076d6adb886d0a12b1128dca1f38717820f8c3e7979277e16b54c6991c8efa569dc977c8cdd8d1b19585ff4a58477b03b072f38

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\wvcv.exe

Filesize
76KB

MD5
299de68e864ebecb585251ed5984f0ba

SHA1
584b4acccbe5532dae61660dfc48bf86a98110f3

SHA256
7d23dd841d3f97651fe6196ca7121a8d3b93289cfcd6d00c86fc777c3f4c94da

SHA512
29060dd7aebf7202edb294a51076d6adb886d0a12b1128dca1f38717820f8c3e7979277e16b54c6991c8efa569dc977c8cdd8d1b19585ff4a58477b03b072f38

Download Submit
memory/1776-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads