Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-12-2024 16:05
Static task
static1
Behavioral task
behavioral1
Sample
aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe
Resource
win7-20240903-en
General
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Target
aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe
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Size
108KB
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MD5
0e16a6f5c3cbb0ab44331864a8266c42
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SHA1
d8cb1c486a97c427450cd109374da13b98b66bae
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SHA256
aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd
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SHA512
6eee3e098645351235c1bc5d7266e2d9b153ed6cf48398f2c8c63546f941909dcde7da3d967fb68dcaeabcc68e4fe4bc8a5a75cb887024c3e1e74715cfae84e3
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SSDEEP
1536:THMUMLtWfykrjXzE5KyiZlE8Nzv6dXH1QwtjKz5X4pthGQP3+jZ3M0Uek:TeLAfykEKyOlE85wFPtj+5X4BIHk
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 3680 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe 2264 DesktopLayer.exe -
resource yara_rule behavioral2/files/0x000c000000023b01-3.dat upx behavioral2/memory/3680-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3680-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2264-15-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2264-13-0x0000000000400000-0x000000000042E000-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 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\px6A91.tmp aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1681171942" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31148829" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8F7080CB-B710-11EF-B319-EE8B2F3CE00B} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31148829" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "440611697" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1676484920" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31148829" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1676484920" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe 2264 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3264 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3264 iexplore.exe 3264 iexplore.exe 5032 IEXPLORE.EXE 5032 IEXPLORE.EXE 5032 IEXPLORE.EXE 5032 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2360 wrote to memory of 3680 2360 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe 83 PID 2360 wrote to memory of 3680 2360 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe 83 PID 2360 wrote to memory of 3680 2360 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe 83 PID 3680 wrote to memory of 2264 3680 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe 84 PID 3680 wrote to memory of 2264 3680 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe 84 PID 3680 wrote to memory of 2264 3680 aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe 84 PID 2264 wrote to memory of 3264 2264 DesktopLayer.exe 85 PID 2264 wrote to memory of 3264 2264 DesktopLayer.exe 85 PID 3264 wrote to memory of 5032 3264 iexplore.exe 86 PID 3264 wrote to memory of 5032 3264 iexplore.exe 86 PID 3264 wrote to memory of 5032 3264 iexplore.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe"C:\Users\Admin\AppData\Local\Temp\aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cd.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exeC:\Users\Admin\AppData\Local\Temp\aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3680 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2264 -
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:3264 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3264 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:5032
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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
MD587f8376b71b1fd35da4b511eff055888
SHA10c55fba0aa699282bbe4d129dd0ba16d4e377ce9
SHA256a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f
SHA5128556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5c0ade0acda69336d7f8100637720c479
SHA1c92be01e660deef3688ca61780a9d6a4bd123999
SHA256e65fd8b778f63799bdb7eab433f4200119460d83fc5a3043d1c7e132611189eb
SHA5123bdced7f426dfc84dcc6492ed7f234335ff8e7089f7d88f63e0ef8edb5a894e7e77737b71538c44279ce609e49127915df25fbed745411b47f24ace15ddfacdc
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\aed45116036e8536276ebea49a2b7356e2f9441e1f0aaee3f34260ba650147cdSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a