Analysis
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max time kernel
94s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
16-06-2024 08:12
Static task
static1
Behavioral task
behavioral1
Sample
b283fd38ead4dc8ed31c16fee19ff55e_JaffaCakes118.dll
Resource
win7-20240611-en
General
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Target
b283fd38ead4dc8ed31c16fee19ff55e_JaffaCakes118.dll
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Size
268KB
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MD5
b283fd38ead4dc8ed31c16fee19ff55e
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SHA1
c11859605f593ca5e050968bed911defc5da1c2c
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SHA256
5960119abf005074613a4d286727365fa3599e5d8ecdd1ab64f9d80b285bcaff
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SHA512
310097d31aa5638a57d2d2bb128cfff7ea4048520e2a7f92dadeb6a38daf7516a8d84858b6410832f28697f0c24e4d656dd7a046bdeb4887d9fc2a303dc7160b
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SSDEEP
3072:5/kTIdXm36Y7KTZgjGYEqINyPJX9tEO9IevqtX7ua5R5WSUgmDQF0EydFIYQ60Fs:5/FYZIN5XevqoXczyrwB04U
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
rundll32Srv.exeDesktopLayer.exepid process 4324 rundll32Srv.exe 3036 DesktopLayer.exe -
Processes:
resource yara_rule C:\Windows\SysWOW64\rundll32Srv.exe upx behavioral2/memory/4324-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4324-8-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3036-14-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3036-16-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
Drops file in Program Files directory 3 IoCs
Processes:
rundll32Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px37AA.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
Processes:
IEXPLORE.EXEiexplore.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31113157" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "190023239" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "187054472" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{36BF1104-2BB8-11EF-B1BC-CE876AE29DDA} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31113157" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "425290541" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "186898822" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31113157" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\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 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe 3036 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1584 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
rundll32.exeiexplore.exeIEXPLORE.EXEpid process 3900 rundll32.exe 1584 iexplore.exe 1584 iexplore.exe 2928 IEXPLORE.EXE 2928 IEXPLORE.EXE 2928 IEXPLORE.EXE 2928 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 4900 wrote to memory of 3900 4900 rundll32.exe rundll32.exe PID 4900 wrote to memory of 3900 4900 rundll32.exe rundll32.exe PID 4900 wrote to memory of 3900 4900 rundll32.exe rundll32.exe PID 3900 wrote to memory of 4324 3900 rundll32.exe rundll32Srv.exe PID 3900 wrote to memory of 4324 3900 rundll32.exe rundll32Srv.exe PID 3900 wrote to memory of 4324 3900 rundll32.exe rundll32Srv.exe PID 4324 wrote to memory of 3036 4324 rundll32Srv.exe DesktopLayer.exe PID 4324 wrote to memory of 3036 4324 rundll32Srv.exe DesktopLayer.exe PID 4324 wrote to memory of 3036 4324 rundll32Srv.exe DesktopLayer.exe PID 3036 wrote to memory of 1584 3036 DesktopLayer.exe iexplore.exe PID 3036 wrote to memory of 1584 3036 DesktopLayer.exe iexplore.exe PID 1584 wrote to memory of 2928 1584 iexplore.exe IEXPLORE.EXE PID 1584 wrote to memory of 2928 1584 iexplore.exe IEXPLORE.EXE PID 1584 wrote to memory of 2928 1584 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b283fd38ead4dc8ed31c16fee19ff55e_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4900 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b283fd38ead4dc8ed31c16fee19ff55e_JaffaCakes118.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4324 -
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:3036 -
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:1584 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1584 CREDAT:17410 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2928
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a