Analysis
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max time kernel
127s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
03-07-2022 05:43
Static task
static1
Behavioral task
behavioral1
Sample
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe
Resource
win7-20220414-en
General
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Target
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe
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Size
3.2MB
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MD5
b9282692990cda5d599200a66fe97c64
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SHA1
9fcc302182d8c9d0111e90caca88ed6a3c64d7c5
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SHA256
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c
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SHA512
ddeb1c8e206109dd83b8c0f81508bce049e2eecdfc65e106b7931089d4f7be78936ee4091f40949c61fdb9ee208bd534f657d7add5038cda4c591ac05d2ea770
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeDesktopLayer.exeInstallDeleteFile.exepid process 5108 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe 1256 DesktopLayer.exe 4308 InstallDeleteFile.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe upx C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe upx behavioral2/memory/5108-137-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/1256-138-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx -
Drops file in Program Files directory 3 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px645C.tmp 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe -
Drops file in Windows directory 2 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exedescription ioc process File created C:\Windows\wsap.dll 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe File created C:\Windows\InstallDeleteFile.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363601497" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "657120187" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30969526" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{35285DBE-FAA9-11EC-B274-4A14660C3739} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "657120187" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30969526" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe 1256 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 2064 iexplore.exe -
Suspicious behavior: LoadsDriver 1 IoCs
Processes:
pid process 648 -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2064 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exeiexplore.exeIEXPLORE.EXEpid process 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 2064 iexplore.exe 2064 iexplore.exe 2544 IEXPLORE.EXE 2544 IEXPLORE.EXE 2544 IEXPLORE.EXE 2544 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1380 wrote to memory of 5108 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1380 wrote to memory of 5108 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1380 wrote to memory of 5108 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 5108 wrote to memory of 1256 5108 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 5108 wrote to memory of 1256 5108 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 5108 wrote to memory of 1256 5108 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 1256 wrote to memory of 2064 1256 DesktopLayer.exe iexplore.exe PID 1256 wrote to memory of 2064 1256 DesktopLayer.exe iexplore.exe PID 1380 wrote to memory of 4308 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1380 wrote to memory of 4308 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1380 wrote to memory of 4308 1380 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 2064 wrote to memory of 2544 2064 iexplore.exe IEXPLORE.EXE PID 2064 wrote to memory of 2544 2064 iexplore.exe IEXPLORE.EXE PID 2064 wrote to memory of 2544 2064 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe"C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe"1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeC:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe2⤵
- Executes dropped EXE
- 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"3⤵
- 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"4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- 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:2064 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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C:\Windows\InstallDeleteFile.exeC:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe2⤵
- Executes dropped EXE
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\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\InstallDeleteFile.exeFilesize
44KB
MD5705d68f498d5f31c921b1133acd0ecaf
SHA1f0a4913560077895fcdf27fdcef0321b7951e6d7
SHA256f360ce7a7952092789eb40b416ea07f63d224a98834743ab04bcb57bb35d7819
SHA512d4759e77a7b509b75114db8b4ddc0ac9b04f90bb4a6a2699e023c9f4bb94438cc37f1dc71ac0442c60ca55a67696bf80ccf1e5f60edfc6670f10d40adfe700b4
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C:\Windows\InstallDeleteFile.exeFilesize
44KB
MD5705d68f498d5f31c921b1133acd0ecaf
SHA1f0a4913560077895fcdf27fdcef0321b7951e6d7
SHA256f360ce7a7952092789eb40b416ea07f63d224a98834743ab04bcb57bb35d7819
SHA512d4759e77a7b509b75114db8b4ddc0ac9b04f90bb4a6a2699e023c9f4bb94438cc37f1dc71ac0442c60ca55a67696bf80ccf1e5f60edfc6670f10d40adfe700b4
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memory/1256-133-0x0000000000000000-mapping.dmp
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memory/1256-138-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1380-136-0x00000000002B0000-0x00000000005EF000-memory.dmpFilesize
3.2MB
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memory/1380-142-0x00000000002B0000-0x00000000005EF000-memory.dmpFilesize
3.2MB
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memory/4308-140-0x0000000000000000-mapping.dmp
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memory/5108-137-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/5108-139-0x0000000000430000-0x000000000043F000-memory.dmpFilesize
60KB
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memory/5108-130-0x0000000000000000-mapping.dmp
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memory/5108-144-0x0000000000430000-0x000000000043F000-memory.dmpFilesize
60KB