Analysis
- max time kernel
147s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system - submitted
17/04/2024, 18:05
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
01aa65da7eb616ca4c2e15e6778bc595ba1db24d548b8372e882a2555d713b4e.dll
Resource
win7-20240221-en
windows7-x64
12 signatures
150 seconds
General
- Target 01aa65da7eb616ca4c2e15e6778bc595ba1db24d548b8372e882a2555d713b4e.dll
- Size 764KB
- Sample240417-wpghssah4s
- SHA256 01aa65da7eb616ca4c2e15e6778bc595ba1db24d548b8372e882a2555d713b4e
- MD5 3abd677479a0cc85e6b462acff5da667
- SHA1 9e803c6cfeebe7be63dd4653280c8369b986293e
- SHA512 788bd09b514e717262165c3908bc964ce5a01cc97d03b64fbb8f89bc13b14cac093bc0f44466e9a398b2d2accae768572ff86d008c0f3bc7bee5602c59b317c0
- SSDEEP 12288:ftkwSyrwWTCj30VgfNYHIu6v5OiE6M18vjU8o4VbUTmLYJu98nb:xwqCj3hfhu6v5OiE6M18vjU8o4VbUpv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral2/memory/3884-1-0x0000000010000000-0x000000001012A000-memory.dmp UPX behavioral2/files/0x000700000002340c-3.dat UPX behavioral2/memory/3948-4-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/3948-7-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/3424-13-0x0000000000400000-0x000000000042E000-memory.dmp UPX behavioral2/memory/3424-16-0x0000000000400000-0x000000000042E000-memory.dmp UPX - Executes dropped EXE 2 IoCs
pid Process 3948 rundll32Srv.exe 3424 DesktopLayer.exe -
resource yara_rule behavioral2/files/0x000700000002340c-3.dat upx behavioral2/memory/3948-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3948-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3424-13-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3424-16-0x0000000000400000-0x000000000042E000-memory.dmp upx - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe - Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\px5C49.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\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-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4041698545" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "420142119" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31101169" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4032634577" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101169" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4032634577" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1BEA07E0-FCE5-11EE-AD03-DE02C580D5A6} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101169" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe 3424 DesktopLayer.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1288 iexplore.exe - Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1288 iexplore.exe 1288 iexplore.exe 1380 IEXPLORE.EXE 1380 IEXPLORE.EXE 1380 IEXPLORE.EXE 1380 IEXPLORE.EXE - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3180 wrote to memory of 3884 3180 rundll32.exe 83 PID 3180 wrote to memory of 3884 3180 rundll32.exe 83 PID 3180 wrote to memory of 3884 3180 rundll32.exe 83 PID 3884 wrote to memory of 3948 3884 rundll32.exe 86 PID 3884 wrote to memory of 3948 3884 rundll32.exe 86 PID 3884 wrote to memory of 3948 3884 rundll32.exe 86 PID 3948 wrote to memory of 3424 3948 rundll32Srv.exe 87 PID 3948 wrote to memory of 3424 3948 rundll32Srv.exe 87 PID 3948 wrote to memory of 3424 3948 rundll32Srv.exe 87 PID 3424 wrote to memory of 1288 3424 DesktopLayer.exe 88 PID 3424 wrote to memory of 1288 3424 DesktopLayer.exe 88 PID 1288 wrote to memory of 1380 1288 iexplore.exe 89 PID 1288 wrote to memory of 1380 1288 iexplore.exe 89 PID 1288 wrote to memory of 1380 1288 iexplore.exe 89
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\01aa65da7eb616ca4c2e15e6778bc595ba1db24d548b8372e882a2555d713b4e.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3180 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\01aa65da7eb616ca4c2e15e6778bc595ba1db24d548b8372e882a2555d713b4e.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3948 -
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
PID:3424 -
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
PID:1288 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1288 CREDAT:17410 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1380
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\1FEO3GJB\suggestions[1].en-US
- Size 17KB
- SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
- MD5 5a34cb996293fde2cb7a4ac89587393a
- SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
- SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
- SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\rundll32Srv.exe
- Size 55KB
- SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
- MD5 ff5e1f27193ce51eec318714ef038bef
- SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
- SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
- SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
- MD5 SHA1 SHA512 SSDEEP