Analysis
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max time kernel
105s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220414-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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Drops file in Drivers directory 1 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exedescription ioc process File created C:\Windows\system32\drivers\MS_dump.sys 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe -
Executes dropped EXE 3 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeDesktopLayer.exeInstallDeleteFile.exepid process 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe 2044 DesktopLayer.exe 2008 InstallDeleteFile.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe upx C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe upx C:\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1096-63-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/2044-66-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
InstallDeleteFile.exepid process 2008 InstallDeleteFile.exe -
Loads dropped DLL 2 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exepid process 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe -
Drops file in Program Files directory 3 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxA5E.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 Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{654A8BC1-FA98-11EC-8F66-F2A7A8855ABA} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363594280" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 2044 DesktopLayer.exe 2044 DesktopLayer.exe 2044 DesktopLayer.exe 2044 DesktopLayer.exe -
Suspicious behavior: LoadsDriver 1 IoCs
Processes:
pid process 460 -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2012 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exeiexplore.exeIEXPLORE.EXEpid process 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 2012 iexplore.exe 2012 iexplore.exe 1728 IEXPLORE.EXE 1728 IEXPLORE.EXE 1728 IEXPLORE.EXE 1728 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1504 wrote to memory of 1096 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1504 wrote to memory of 1096 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1504 wrote to memory of 1096 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1504 wrote to memory of 1096 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe PID 1096 wrote to memory of 2044 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 1096 wrote to memory of 2044 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 1096 wrote to memory of 2044 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 1096 wrote to memory of 2044 1096 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exe DesktopLayer.exe PID 2044 wrote to memory of 2012 2044 DesktopLayer.exe iexplore.exe PID 2044 wrote to memory of 2012 2044 DesktopLayer.exe iexplore.exe PID 2044 wrote to memory of 2012 2044 DesktopLayer.exe iexplore.exe PID 2044 wrote to memory of 2012 2044 DesktopLayer.exe iexplore.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 1504 wrote to memory of 2008 1504 3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34c.exe InstallDeleteFile.exe PID 2012 wrote to memory of 1728 2012 iexplore.exe IEXPLORE.EXE PID 2012 wrote to memory of 1728 2012 iexplore.exe IEXPLORE.EXE PID 2012 wrote to memory of 1728 2012 iexplore.exe IEXPLORE.EXE PID 2012 wrote to memory of 1728 2012 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 Drivers directory
- Loads dropped DLL
- 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
- 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"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 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:2012 CREDAT:275457 /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
- Deletes itself
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:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\2RSOHV42.txtFilesize
606B
MD5d0cb70cabbb13baae858450158161a11
SHA11b78f482995cc3a6e2bd1b54112fc87d2f0dd94d
SHA256188c13fa76217bc17d176bd08e67fa4b2bb2806714f26a02872fe79908aec8f2
SHA512129164e0d3b1e5cef637ff95da28681814234f4a94536a2bbb793517ae95cd8276b7c801f68ea33e0108a8c37eb6a92323dcc1a5423e89286915e5a0685e3943
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C:\Windows\InstallDeleteFile.exeFilesize
44KB
MD5705d68f498d5f31c921b1133acd0ecaf
SHA1f0a4913560077895fcdf27fdcef0321b7951e6d7
SHA256f360ce7a7952092789eb40b416ea07f63d224a98834743ab04bcb57bb35d7819
SHA512d4759e77a7b509b75114db8b4ddc0ac9b04f90bb4a6a2699e023c9f4bb94438cc37f1dc71ac0442c60ca55a67696bf80ccf1e5f60edfc6670f10d40adfe700b4
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\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Users\Admin\AppData\Local\Temp\3caa4a80674a9861c9a07a2c634e76c108bed7735ae1ecca35cba72062d3c34cSrv.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/1096-63-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1096-56-0x0000000000000000-mapping.dmp
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memory/1504-71-0x0000000000E80000-0x00000000011BF000-memory.dmpFilesize
3.2MB
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memory/1504-68-0x0000000000E80000-0x00000000011BF000-memory.dmpFilesize
3.2MB
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memory/1504-54-0x0000000076561000-0x0000000076563000-memory.dmpFilesize
8KB
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memory/1504-69-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/2008-67-0x0000000000000000-mapping.dmp
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memory/2044-66-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/2044-61-0x0000000000000000-mapping.dmp