Analysis
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max time kernel
94s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-01-2025 07:06
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll
Resource
win7-20240708-en
General
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Target
JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll
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Size
266KB
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MD5
4ba847a6abe88d2de84696ff36105dd0
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SHA1
08c50f7fa556edb73e12751bf46fcb165451cdf6
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SHA256
0f14252aa4405954d45e4848dd68be218e67fc66ac7e2f833fce8f20b34dcaa5
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SHA512
6bbe18cce4d4059e22bb567b79c494688182782dfa73d3053922f0351bfd0ca274c2edf1d8b2954bce5fe17e8ee683ca33ca031e5e48ac8ac9093b1cc4b7dfcd
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SSDEEP
3072:fHIbZrZeazcZgbAr0uiND880HlTJT5I0tdQu7Pd8Y2Lyp0lFmy/p/yr9rn10Dfww:7aGgcJipRuQQppQFmgY+4aQ1kmIW
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 1092 regsvr32Srv.exe 2156 DesktopLayer.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32Srv.exe regsvr32.exe -
resource yara_rule behavioral2/files/0x000a000000023bbc-3.dat upx behavioral2/memory/1092-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1092-8-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2156-12-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2156-15-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxC062.tmp regsvr32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.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 IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153179" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153179" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E6A6FB38-C80E-11EF-BDBF-E26222BAF6A3} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153179" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3142953689" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153179" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442480154" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3139985273" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3139985273" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3142953689" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe -
Modifies registry class 29 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver\ = "CUIDriver Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver.1\ = "CUIDriver Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver\CurVer\ = "igfxdev.CUIDriver.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\ = "igfxdev 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\ProgID\ = "igfxdev.CUIDriver.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver.1\CLSID\ = "{9CEE304E-DC6C-11D2-B561-00A0C92E6848}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver\CLSID\ = "{9CEE304E-DC6C-11D2-B561-00A0C92E6848}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\VersionIndependentProgID\ = "igfxdev.CUIDrover" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BB74AF42-DC70-11D2-B561-00A0C92E6848}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\igfxdev.CUIDriver\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9CEE304E-DC6C-11D2-B561-00A0C92E6848}\ = "CUIDriver Class" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe 2156 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1772 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1772 iexplore.exe 1772 iexplore.exe 3720 IEXPLORE.EXE 3720 IEXPLORE.EXE 3720 IEXPLORE.EXE 3720 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3196 wrote to memory of 372 3196 regsvr32.exe 83 PID 3196 wrote to memory of 372 3196 regsvr32.exe 83 PID 3196 wrote to memory of 372 3196 regsvr32.exe 83 PID 372 wrote to memory of 1092 372 regsvr32.exe 84 PID 372 wrote to memory of 1092 372 regsvr32.exe 84 PID 372 wrote to memory of 1092 372 regsvr32.exe 84 PID 1092 wrote to memory of 2156 1092 regsvr32Srv.exe 85 PID 1092 wrote to memory of 2156 1092 regsvr32Srv.exe 85 PID 1092 wrote to memory of 2156 1092 regsvr32Srv.exe 85 PID 2156 wrote to memory of 1772 2156 DesktopLayer.exe 86 PID 2156 wrote to memory of 1772 2156 DesktopLayer.exe 86 PID 1772 wrote to memory of 3720 1772 iexplore.exe 87 PID 1772 wrote to memory of 3720 1772 iexplore.exe 87 PID 1772 wrote to memory of 3720 1772 iexplore.exe 87
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3196 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ba847a6abe88d2de84696ff36105dd0.dll2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:372 -
C:\Windows\SysWOW64\regsvr32Srv.exeC:\Windows\SysWOW64\regsvr32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2156 -
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:1772 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1772 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3720
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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
MD5febff5e5b64433316ee5f116c5c14309
SHA155a533777edeed0d18304f073d59d5ca1e5c7737
SHA256888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4
SHA512cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD57fd715bbce757a107a09742b37b761e7
SHA152808babb41003667fc2d36bf64881de4c8a107b
SHA256e6082eb28d5e2a5b74a833e241cdbf57528fe190d50a3baea5750d172ab42827
SHA512a45d6bf021d43983945d79179b523491a4288f3457cf3695a546265537bb2f413ba5ec1f30d7fa53bd06caa5764fa933687c8ed52b44def7ffd6699a8b6b56e8
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a