Analysis
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max time kernel
104s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20250410-en -
resource tags
arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system -
submitted
13/04/2025, 12:04
Static task
static1
General
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Target
JaffaCakes118_b499457f877678121854d928d154b0da.dll
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Size
296KB
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MD5
b499457f877678121854d928d154b0da
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SHA1
3f9f2f0da83cf4781a2ca3de9ab33767181e479d
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SHA256
1ac17cfad76acb73819bb725a8ec3467660722227e7d967af06112449859bca8
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SHA512
76a5b702c5319341af8f5c3125b1e59adcb0f7cd724ed995591d1065cb48639a105319f0004b95d3d7f41b3d7857b4b58e121823566ae5caa73aadfcd0efb8b6
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SSDEEP
3072:Z0NbrbkYHUyP9eECVWfpIhbWoVnW6IioARoKO7JurqeBTg4vRP86TvOB5n+9029a:arkYHjIWeWcd71byn1hwafckXKsl
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 3096 rundll32mgr.exe 5244 WaterMark.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral1/memory/3096-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-14-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/3096-18-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5244-30-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5244-33-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5244-29-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5244-39-0x0000000000400000-0x0000000000431000-memory.dmp upx behavioral1/memory/5244-41-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5244-43-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px6987.tmp rundll32mgr.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1016 2200 WerFault.exe 90 2224 2872 WerFault.exe 86 -
System Location Discovery: System Language Discovery 1 TTPs 5 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 IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\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-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{766C65B2-185F-11F0-B8F9-C6EE83E2B47F} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451310848" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{766EC9CC-185F-11F0-B8F9-C6EE83E2B47F} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe 5244 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5244 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4876 iexplore.exe 4624 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4624 iexplore.exe 4624 iexplore.exe 4876 iexplore.exe 4876 iexplore.exe 1740 IEXPLORE.EXE 1740 IEXPLORE.EXE 5052 IEXPLORE.EXE 5052 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 3096 rundll32mgr.exe 5244 WaterMark.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 5480 wrote to memory of 2872 5480 rundll32.exe 86 PID 5480 wrote to memory of 2872 5480 rundll32.exe 86 PID 5480 wrote to memory of 2872 5480 rundll32.exe 86 PID 2872 wrote to memory of 3096 2872 rundll32.exe 87 PID 2872 wrote to memory of 3096 2872 rundll32.exe 87 PID 2872 wrote to memory of 3096 2872 rundll32.exe 87 PID 3096 wrote to memory of 5244 3096 rundll32mgr.exe 89 PID 3096 wrote to memory of 5244 3096 rundll32mgr.exe 89 PID 3096 wrote to memory of 5244 3096 rundll32mgr.exe 89 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 2200 5244 WaterMark.exe 90 PID 5244 wrote to memory of 4624 5244 WaterMark.exe 100 PID 5244 wrote to memory of 4624 5244 WaterMark.exe 100 PID 5244 wrote to memory of 4876 5244 WaterMark.exe 101 PID 5244 wrote to memory of 4876 5244 WaterMark.exe 101 PID 4624 wrote to memory of 5052 4624 iexplore.exe 102 PID 4624 wrote to memory of 5052 4624 iexplore.exe 102 PID 4624 wrote to memory of 5052 4624 iexplore.exe 102 PID 4876 wrote to memory of 1740 4876 iexplore.exe 103 PID 4876 wrote to memory of 1740 4876 iexplore.exe 103 PID 4876 wrote to memory of 1740 4876 iexplore.exe 103
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b499457f877678121854d928d154b0da.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:5480 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b499457f877678121854d928d154b0da.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:5244 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe5⤵PID:2200
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 2046⤵
- Program crash
PID:1016
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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:4624 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4624 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:5052
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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:4876 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4876 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1740
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 6083⤵
- Program crash
PID:2224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2872 -ip 28721⤵PID:5752
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2200 -ip 22001⤵PID:5472
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{766C65B2-185F-11F0-B8F9-C6EE83E2B47F}.dat
Filesize3KB
MD5a358b8ab922a1715367952aa6fe34cb0
SHA19df9e90d28313f7f68f5a578f2de9f202c9bdcde
SHA256b7fe0e03b24b69d5379364fd9ca8752b01ac8d7ae5d31d245b57701f26351c41
SHA5124a51d3370c85e0cf8a8b88f8f5edd2f08504148bbf941b4900c95b432179976b4bb7de3b48375eba71b41f7632dc93ed25493241ea2cbd24744adcbb9981c627
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{766EC9CC-185F-11F0-B8F9-C6EE83E2B47F}.dat
Filesize5KB
MD54b6276cdec66f43caa3d854adfc716ec
SHA17ebb564f31e4e52d150762b608bff11ac574c129
SHA256e140edd5a3981306c2412396e1c31a5c26d4ef9ff5d4c0032da8ffe475a07896
SHA5121b567288108ea1d193d32673484f97ac684f47bf12179fef01db353ea9b4e748ca5b2c1fa77c1ea368bccb4b775e89548d16496518097426be8e740de571d0dd
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
128KB
MD56b564c266d22f282d5642c05a1636f99
SHA158d07b1cef9fb722a0c7f67d6fee7fa0d8a0a3f9
SHA2569ef366b56173264a20fc1f704dbfe486f14cd9fcca54084f32e8116c958cab55
SHA512636ad5a81c5ca6b748e1fd570348c9df7298138d3ef4b854d3f1ce8423ef3e109f1dbd384c93fe31be7a3776cd6c1dcb2dcc3da27283f1c9eddba7161ea3627f