Analysis
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max time kernel
123s -
max time network
146s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
04-05-2021 19:21
Static task
static1
Behavioral task
behavioral1
Sample
9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll
Resource
win7v20210408
General
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Target
9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll
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Size
300KB
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MD5
bf274ca882dd1d5d66ba32a9595a3d3a
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SHA1
a76abf9ba17777be8d9d847c7a7701a3fc3cf23b
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SHA256
9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4
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SHA512
cd4e0e4bafbf488980f41a9c39effd3010dfc2b9b34502863403f47de7fefac04a616f0e7be8d69dee90adebf3d5e955827845eb19a6c609b3c2cca568fa6b10
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
regsvr32Srv.exeDesktopLayer.exepid process 1140 regsvr32Srv.exe 1368 DesktopLayer.exe -
Processes:
resource yara_rule \Windows\SysWOW64\regsvr32Srv.exe upx C:\Windows\SysWOW64\regsvr32Srv.exe upx C:\Windows\SysWOW64\regsvr32Srv.exe upx behavioral1/memory/1140-69-0x0000000000400000-0x000000000042E000-memory.dmp upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32Srv.exepid process 1192 regsvr32.exe 1140 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\px61BF.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 Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "326928677" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A32A1371-AD1F-11EB-A5E9-5E661A0063E2} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe -
Modifies registry class 19 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\ = "Haali Video Renderer Properties" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\CLSID = "{760A8F35-97E7-479D-AAF5-DA9EFF95D751}" regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\FilterData = 02000000000020000100000000000000307069330000000000000000010000000000000000000000307479330000000038000000480000007669647300001000800000aa00389b717eeb36e44f52ce119f530020af0ba770 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\ = "Haali Video Renderer Image Properties" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\FriendlyName = "Haali Video Renderer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\ = "Haali Video Renderer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054} regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 1368 DesktopLayer.exe 1368 DesktopLayer.exe 1368 DesktopLayer.exe 1368 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2000 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 2000 iexplore.exe 2000 iexplore.exe 1752 IEXPLORE.EXE 1752 IEXPLORE.EXE 1752 IEXPLORE.EXE 1752 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
regsvr32.exeregsvr32.exeregsvr32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1920 wrote to memory of 1192 1920 regsvr32.exe regsvr32.exe PID 1192 wrote to memory of 1140 1192 regsvr32.exe regsvr32Srv.exe PID 1192 wrote to memory of 1140 1192 regsvr32.exe regsvr32Srv.exe PID 1192 wrote to memory of 1140 1192 regsvr32.exe regsvr32Srv.exe PID 1192 wrote to memory of 1140 1192 regsvr32.exe regsvr32Srv.exe PID 1140 wrote to memory of 1368 1140 regsvr32Srv.exe DesktopLayer.exe PID 1140 wrote to memory of 1368 1140 regsvr32Srv.exe DesktopLayer.exe PID 1140 wrote to memory of 1368 1140 regsvr32Srv.exe DesktopLayer.exe PID 1140 wrote to memory of 1368 1140 regsvr32Srv.exe DesktopLayer.exe PID 1368 wrote to memory of 2000 1368 DesktopLayer.exe iexplore.exe PID 1368 wrote to memory of 2000 1368 DesktopLayer.exe iexplore.exe PID 1368 wrote to memory of 2000 1368 DesktopLayer.exe iexplore.exe PID 1368 wrote to memory of 2000 1368 DesktopLayer.exe iexplore.exe PID 2000 wrote to memory of 1752 2000 iexplore.exe IEXPLORE.EXE PID 2000 wrote to memory of 1752 2000 iexplore.exe IEXPLORE.EXE PID 2000 wrote to memory of 1752 2000 iexplore.exe IEXPLORE.EXE PID 2000 wrote to memory of 1752 2000 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\9a1679474786b258c4dc0e4e7429dda5e71e1faa8529f5037e19a169b88b93b4.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:2000 CREDAT:275457 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\61K1UUHU.txtMD5
0ceca5437454f9357a3764d678e12b97
SHA1d2466e7981ee0f7af680b3e77de09c5a8fa26d31
SHA256b6338206f6d03e58c88e26f55e8c983983105ef650fc8f3a0d4b6334a81cb758
SHA512b7ef4adf9c4460a791add215efb8a877db95a47888c461580c7d28d48bc5912c23dc3f144899ac9176c6a5474f97f0226d33d688806676f9589cd47e8dd571e7
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C:\Windows\SysWOW64\regsvr32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\regsvr32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Windows\SysWOW64\regsvr32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1140-64-0x0000000000000000-mapping.dmp
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memory/1140-69-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1140-68-0x00000000001C0000-0x00000000001CF000-memory.dmpFilesize
60KB
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memory/1192-62-0x0000000076691000-0x0000000076693000-memory.dmpFilesize
8KB
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memory/1192-61-0x0000000000000000-mapping.dmp
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memory/1368-71-0x0000000000000000-mapping.dmp
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memory/1368-75-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1752-80-0x0000000000000000-mapping.dmp
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memory/1920-60-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmpFilesize
8KB
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memory/2000-76-0x0000000000000000-mapping.dmp
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memory/2000-81-0x0000000004250000-0x0000000004251000-memory.dmpFilesize
4KB