Analysis
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max time kernel
77s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21/08/2024, 03:03
Static task
static1
Behavioral task
behavioral1
Sample
b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe
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Size
245KB
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MD5
b1e15586b47dceb5c2b75fc92b543dd9
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SHA1
638c09882ffec5acee3449637112bc1401ac4a52
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SHA256
2b7c3a13291408c99e3efcd943986a31f7b6781fd4296194d3a7e31dd565775f
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SHA512
54298b1c4d2ad698eb318b222513a492b5b343a777cc19d490b6647bfc0c8e7fce3271f3fba210a2079b74a01456d0144d5320220f2fd0c3568c977cac3d3a0d
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SSDEEP
6144:1Nytcr+5lJOpaZ9EIyc8sJmYOYbW+tf46Ru/qvgr:1NyB5l9oIyvsJhz7Qou/+g
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 4952 cGyAF3B.exe -
Loads dropped DLL 1 IoCs
pid Process 4952 cGyAF3B.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSSMSGS = "rundll32.exe winowm32.rom,TdYtDPp" cGyAF3B.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\winowm32.rom cGyAF3B.exe File opened for modification C:\Windows\SysWOW64\winowm32.rom cGyAF3B.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 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 b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cGyAF3B.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\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 Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3111416865" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3115323521" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31126390" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E50FAEC4-5F69-11EF-84CD-F60A6DD2E828} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31126390" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3111416865" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31126390" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "430974364" iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1648 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1648 iexplore.exe 1648 iexplore.exe 4732 IEXPLORE.EXE 4732 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2280 wrote to memory of 4952 2280 b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe 89 PID 2280 wrote to memory of 4952 2280 b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe 89 PID 2280 wrote to memory of 4952 2280 b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe 89 PID 4952 wrote to memory of 4468 4952 cGyAF3B.exe 90 PID 4952 wrote to memory of 4468 4952 cGyAF3B.exe 90 PID 4952 wrote to memory of 4468 4952 cGyAF3B.exe 90 PID 4468 wrote to memory of 1648 4468 cmd.exe 92 PID 4468 wrote to memory of 1648 4468 cmd.exe 92 PID 1648 wrote to memory of 4732 1648 iexplore.exe 94 PID 1648 wrote to memory of 4732 1648 iexplore.exe 94 PID 1648 wrote to memory of 4732 1648 iexplore.exe 94 PID 4952 wrote to memory of 1648 4952 cGyAF3B.exe 92 PID 4952 wrote to memory of 1648 4952 cGyAF3B.exe 92 PID 4952 wrote to memory of 3808 4952 cGyAF3B.exe 99 PID 4952 wrote to memory of 3808 4952 cGyAF3B.exe 99 PID 4952 wrote to memory of 3808 4952 cGyAF3B.exe 99 PID 4952 wrote to memory of 1592 4952 cGyAF3B.exe 100 PID 4952 wrote to memory of 1592 4952 cGyAF3B.exe 100 PID 4952 wrote to memory of 1592 4952 cGyAF3B.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b1e15586b47dceb5c2b75fc92b543dd9_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Users\Admin\AppData\Local\Temp\cGyAF3B.exeC:\Users\Admin\AppData\Local\Temp\cGyAF3B.exe W9VcqfpWZOmC2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Windows\SysWOW64\cmd.execmd /c start iexplore -embedding3⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -embedding4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1648 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4732
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\OUyB5C3.bat"3⤵
- System Location Discovery: System Language Discovery
PID:3808
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\cGyAF3B.bat"3⤵
- System Location Discovery: System Language Discovery
PID:1592
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
188B
MD56d84b98f0052e6405e9b2ce608baf540
SHA13452e9d5e019892446607add000dd6ccb0f4ed4b
SHA256b2beb5c210940847eb3b94fbd588dea9ddd99327fd73346ce8e6213570e6d774
SHA51242b25a65784a918e3bd69d32b09ce36c831c8445aa41e3a324a1fef34fc7eec6bdc047bcaa4008ab7d797865e9af4eca6f03a72c3ad9e41f73bd9b92e3c15ecb
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Filesize
106KB
MD509a16daa67d74e30fc37e104f30daab7
SHA162920e6f54686e05abf5810854e230265379edb9
SHA2561b8b64132aa8e988fa3776c86e37b3621f6c54ac8cc33f327a2ec776f72185d4
SHA512010490a2ddf7cf32c3d2580dc7af2e9041a3ce56f3f736908f3e4d964185c5f76149f33cbfddf3588021a56595cf552cbc5265e0fc488bfd06ee73f5ca114f2b
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Filesize
188B
MD5c988978c5969e73cba35c243054a28a7
SHA16e17670833b7243b05a2b6c103ac379ea8225f59
SHA256dcface81497a7e74da2747c869d5c1f0fabe4f55b0eae8f909755aa4aa81453e
SHA512e3c6cea94702b21f76f7eefebc7e7911ced7a40bf9674e3aa29a51d0214eb519e498b999bf54d61e8a3a0b0557e8a3b32e2a6b2b16a3f06cafbfd2abc22c352d
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Filesize
175KB
MD574e1d03e1071b2e3d536dd223b907071
SHA15459e439ea64443a550b67a1356a1d49766d711b
SHA256b1f61b998872c0313432754e7fba3b8dfd1347d494a8d93d14f13d3c0583ae52
SHA512715cae15564f6bcc9970b75fa94e2401c3f37188e08898a2a2d86a5f473accbec78253aad18c1111c961a8ac3148e1bd12e578d06da501574d12aa5cd32e6ac5