Analysis
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max time kernel
143s -
max time network
218s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
28-11-2022 19:53
Static task
static1
Behavioral task
behavioral1
Sample
d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll
Resource
win7-20221111-en
General
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Target
d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll
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Size
204KB
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MD5
51f7c0babbe13f0fc2a5bb1c2914a560
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SHA1
2e9b379758eab89e63778eb5c1a80d0db95bc91a
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SHA256
d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb
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SHA512
75a8cfa9f8f674a35ae4fa390e81a63cafef55752f96889642f50c3490d5bfb7f934fd3bec84eeb9de8af6039cdf4a41753e8ae8e0c64d25d44d31e0c2df9bb7
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SSDEEP
3072:C8vxNEoCoeOxgop16PclXVtJ5COJf7YaxFMJDH:CsrjZ7JpUaxFMJr
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
regsvr32Srv.exeDesktopLayer.exepid process 276 regsvr32Srv.exe 572 DesktopLayer.exe -
Processes:
resource yara_rule \Windows\SysWOW64\regsvr32Srv.exe upx C:\Windows\SysWOW64\regsvr32Srv.exe upx C:\Windows\SysWOW64\regsvr32Srv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/276-65-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/572-68-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32Srv.exepid process 932 regsvr32.exe 276 regsvr32Srv.exe -
Drops file in System32 directory 1 IoCs
Processes:
regsvr32.exedescription ioc process File created C:\Windows\SysWOW64\regsvr32Srv.exe regsvr32.exe -
Drops file in Program Files directory 3 IoCs
Processes:
regsvr32Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px3C46.tmp regsvr32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{31BF7071-705B-11ED-8965-5263E908E3CD} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376542232" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Modifies registry class 26 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\ProgID\ = "JavaWebStart.isInstalled.1.5.0.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\VersionIndependentProgID\ = "JavaWebStart.isInstalled" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\MiscStatus regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled.1.5.0.0\ = "isInstalled Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled.1.5.0.0\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled\ = "isInstalled Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5852F5E0-8BF4-11D4-A245-0080C6F74284}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled\CurVer\ = "JavaWebStart.isInstalled.1.5.0.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\MiscStatus\1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5852F5E0-8BF4-11D4-A245-0080C6F74284}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\TypeLib\ = "{5852F5E0-8BF4-11D4-A245-0080C6F74284}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5852F5E0-8BF4-11D4-A245-0080C6F74284}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled.1.5.0.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled.1.5.0.0\CLSID\ = "{5852F5ED-8BF4-11D4-A245-0080C6F74284}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\ = "isInstalled Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\MiscStatus\1\ = "384" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\JavaWebStart.isInstalled\CLSID\ = "{5852F5ED-8BF4-11D4-A245-0080C6F74284}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5852F5ED-8BF4-11D4-A245-0080C6F74284}\MiscStatus\ = "0" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 572 DesktopLayer.exe 572 DesktopLayer.exe 572 DesktopLayer.exe 572 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1192 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1192 iexplore.exe 1192 iexplore.exe 816 IEXPLORE.EXE 816 IEXPLORE.EXE 816 IEXPLORE.EXE 816 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
regsvr32.exeregsvr32.exeregsvr32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 1440 wrote to memory of 932 1440 regsvr32.exe regsvr32.exe PID 932 wrote to memory of 276 932 regsvr32.exe regsvr32Srv.exe PID 932 wrote to memory of 276 932 regsvr32.exe regsvr32Srv.exe PID 932 wrote to memory of 276 932 regsvr32.exe regsvr32Srv.exe PID 932 wrote to memory of 276 932 regsvr32.exe regsvr32Srv.exe PID 276 wrote to memory of 572 276 regsvr32Srv.exe DesktopLayer.exe PID 276 wrote to memory of 572 276 regsvr32Srv.exe DesktopLayer.exe PID 276 wrote to memory of 572 276 regsvr32Srv.exe DesktopLayer.exe PID 276 wrote to memory of 572 276 regsvr32Srv.exe DesktopLayer.exe PID 572 wrote to memory of 1192 572 DesktopLayer.exe iexplore.exe PID 572 wrote to memory of 1192 572 DesktopLayer.exe iexplore.exe PID 572 wrote to memory of 1192 572 DesktopLayer.exe iexplore.exe PID 572 wrote to memory of 1192 572 DesktopLayer.exe iexplore.exe PID 1192 wrote to memory of 816 1192 iexplore.exe IEXPLORE.EXE PID 1192 wrote to memory of 816 1192 iexplore.exe IEXPLORE.EXE PID 1192 wrote to memory of 816 1192 iexplore.exe IEXPLORE.EXE PID 1192 wrote to memory of 816 1192 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\d60ea12542295d68c4010322261741d5e1adf1090eff5e57e8112c3acb260ebb.dll2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32Srv.exeC:\Windows\SysWOW64\regsvr32Srv.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1192 CREDAT:275457 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\KMVIC6TU.txtFilesize
601B
MD55705764aa59962234718da9fe04a55b9
SHA14e8fe8f8103297445c16a29ed32416f919730c96
SHA2564027f741adcddc77339ea8cce11af2dd129ef133e7df42ad23ceefd90c6e6ecf
SHA5128476a115a409e8a546f50c9c33fb6b6386fa6586db2357eafc06d55f7f2e686472f6542d4702b63d8f9e98a33c3331f922aaba35c41cbf0584a898e5ace9c20a
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C:\Windows\SysWOW64\regsvr32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\regsvr32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Windows\SysWOW64\regsvr32Srv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/276-58-0x0000000000000000-mapping.dmp
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memory/276-65-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/572-63-0x0000000000000000-mapping.dmp
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memory/572-68-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/932-56-0x0000000075BA1000-0x0000000075BA3000-memory.dmpFilesize
8KB
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memory/932-55-0x0000000000000000-mapping.dmp
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memory/1440-54-0x000007FEFC181000-0x000007FEFC183000-memory.dmpFilesize
8KB