Analysis
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max time kernel
243s -
max time network
350s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
12-02-2023 03:38
Behavioral task
behavioral1
Sample
download.exe
Resource
win7-20221111-en
General
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Target
download.exe
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Size
55KB
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MD5
ff5e1f27193ce51eec318714ef038bef
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SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
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SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
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SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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SSDEEP
1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
DesktopLayer.exepid process 1928 DesktopLayer.exe -
Loads dropped DLL 1 IoCs
Processes:
download.exepid process 388 download.exe -
Processes:
resource yara_rule behavioral1/memory/388-55-0x0000000000400000-0x000000000042E000-memory.dmp upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1928-61-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1928-63-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
download.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px3361.tmp download.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe download.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe download.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\SearchScopes iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{96DCFE01-AA8F-11ED-AC54-767CA9D977BF} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "382941921" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 1928 DesktopLayer.exe 1928 DesktopLayer.exe 1928 DesktopLayer.exe 1928 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1632 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1632 iexplore.exe 1632 iexplore.exe 1496 IEXPLORE.EXE 1496 IEXPLORE.EXE 1496 IEXPLORE.EXE 1496 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
download.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 388 wrote to memory of 1928 388 download.exe DesktopLayer.exe PID 388 wrote to memory of 1928 388 download.exe DesktopLayer.exe PID 388 wrote to memory of 1928 388 download.exe DesktopLayer.exe PID 388 wrote to memory of 1928 388 download.exe DesktopLayer.exe PID 1928 wrote to memory of 1632 1928 DesktopLayer.exe iexplore.exe PID 1928 wrote to memory of 1632 1928 DesktopLayer.exe iexplore.exe PID 1928 wrote to memory of 1632 1928 DesktopLayer.exe iexplore.exe PID 1928 wrote to memory of 1632 1928 DesktopLayer.exe iexplore.exe PID 1632 wrote to memory of 1496 1632 iexplore.exe IEXPLORE.EXE PID 1632 wrote to memory of 1496 1632 iexplore.exe IEXPLORE.EXE PID 1632 wrote to memory of 1496 1632 iexplore.exe IEXPLORE.EXE PID 1632 wrote to memory of 1496 1632 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\download.exe"C:\Users\Admin\AppData\Local\Temp\download.exe"1⤵
- 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"2⤵
- 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"3⤵
- 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:1632 CREDAT:275457 /prefetch:24⤵
- 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\O5CPXJVK.txtFilesize
608B
MD5d6997c573a2c8ec1d6355d0655a53fdf
SHA1672ed8f8fa191298bc878120d8f18eaf185bfba2
SHA256990d241f9018d37448a5a3b92eb64ef0ae396155f5ce77f11f88f21e5a959ad7
SHA5123c0f0a8d2e4925990a68f201dbe63b8167c31709f3e577d3c911af9287a7c257206af78651f66694bdab8d378a401a0129b9310ad53228be72ba6ff537815c2e
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\Program Files (x86)\Microsoft\DesktopLayer.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/388-54-0x0000000074FA1000-0x0000000074FA3000-memory.dmpFilesize
8KB
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memory/388-56-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/388-55-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/388-64-0x0000000000230000-0x000000000023F000-memory.dmpFilesize
60KB
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memory/1928-58-0x0000000000000000-mapping.dmp
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memory/1928-61-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1928-63-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB