Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-06-2024 04:34
Static task
static1
Behavioral task
behavioral1
Sample
eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe
Resource
win7-20240611-en
General
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Target
eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe
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Size
126KB
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MD5
0fa6bdafab779e2a36ef87db5219229b
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SHA1
e8d481bbfee3a1c6a45d3f672f996cfd59c042b5
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SHA256
eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7
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SHA512
4d1be03ea7f8bd1c60282597f7a2cbe592fbf6390f497808eae1dff82b5b5800a77991fa9d7e038862a3a852b95ad5d97e3359eca054b2984d0c165e63a5a970
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SSDEEP
3072:tLLVpImRqLOUph/3FhIvLwV9jqPEEhHdKk:FLVpOjvg8VxqcETJ
Malware Config
Signatures
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UPX dump on OEP (original entry point) 7 IoCs
resource yara_rule behavioral2/files/0x000a00000002328e-3.dat UPX behavioral2/memory/660-7-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/660-5-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/2648-11-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/2648-15-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/2648-16-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/4680-18-0x0000000000A60000-0x0000000000A84000-memory.dmp UPX -
Executes dropped EXE 2 IoCs
pid Process 660 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe 2648 DesktopLayer.exe -
resource yara_rule behavioral2/files/0x000a00000002328e-3.dat upx behavioral2/memory/660-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/660-5-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2648-11-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2648-15-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2648-16-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\px5592.tmp eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "426141472" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31115138" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31115138" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{712439DB-3375-11EF-9519-FEF50CB5D633} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1166606505" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1166606505" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31115138" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1168950168" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe 2648 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2604 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2604 iexplore.exe 2604 iexplore.exe 224 IEXPLORE.EXE 224 IEXPLORE.EXE 224 IEXPLORE.EXE 224 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4680 wrote to memory of 660 4680 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe 81 PID 4680 wrote to memory of 660 4680 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe 81 PID 4680 wrote to memory of 660 4680 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe 81 PID 660 wrote to memory of 2648 660 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe 82 PID 660 wrote to memory of 2648 660 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe 82 PID 660 wrote to memory of 2648 660 eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe 82 PID 2648 wrote to memory of 2604 2648 DesktopLayer.exe 83 PID 2648 wrote to memory of 2604 2648 DesktopLayer.exe 83 PID 2604 wrote to memory of 224 2604 iexplore.exe 84 PID 2604 wrote to memory of 224 2604 iexplore.exe 84 PID 2604 wrote to memory of 224 2604 iexplore.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe"C:\Users\Admin\AppData\Local\Temp\eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4680 -
C:\Users\Admin\AppData\Local\Temp\eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exeC:\Users\Admin\AppData\Local\Temp\eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:660 -
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
PID:2648 -
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
PID:2604 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2604 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:224
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5b9b9f42ce6d2b20bf169d05480d239d4
SHA132b094cc2ff79f07fcd68d585846b919bc350e4d
SHA2564d16bb8c9a34d4de9d39bb5f0e87095617b5ad551112db17b38b6cb752fbdae4
SHA51236b45c544439c6b1fab4c2fa58712475a65ad467e3da61086c4a953d6587d35f5c6ae7de740863295ae0d3534cbf67d0bed6843d95b6786b50431bfeebcf1010
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5098dac61b850f697187bd1124f5a9b0c
SHA134765f327b9944f80d066b98a1bf63341062a17c
SHA256979ac48883cdb8013dabbec6a75b7ad15c6951c800e942e48cb3702ee5bb97d1
SHA512bb665165f67627f57fd116aa5489b209b0e872a6937a4b409b1331946c382bb00704d080b30947294e7cb931b245dfca82865f827294bfd6926a28b1596ade1f
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\eef68e025ef63426f5438cccc9ea7ad2c8f64a4916b3756b533eb0e5852ebaa7Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a