Analysis
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max time kernel
104s -
max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
13/04/2025, 11:57
Static task
static1
General
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Target
JaffaCakes118_b494b160988f95c85119ea973f54a9e0.dll
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Size
904KB
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MD5
b494b160988f95c85119ea973f54a9e0
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SHA1
0b93eccd0000a1c5841c953fbe2600a10bc7b3cd
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SHA256
ffc83ceb68656785284b208d01533eac13607bf152f3ac49f28d12ca292c8ac7
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SHA512
397a04352db620917d2a34a927038e1b1b610f8daa6d72fbbdbccaac9786926d9389eaa01c9a0b2ef3ccc6b9b5071f11b446e263b4ba6c4e5ee9c6a4e1fab7bd
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SSDEEP
24576:0IZ9+e3LFRbk4vQL9TQVt5OntyUmP10wauIOmn1mmb18jfB/csw50jfBP:zQZ0Br41Lb1sTB
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 5148 rundll32mgr.exe 5764 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/5148-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5764-29-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-15-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5148-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5764-38-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5764-41-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/5764-42-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px7F03.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 2912 4344 WerFault.exe 84 5456 4940 WerFault.exe 89 -
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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451310408" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{702CCE90-185E-11F0-9A21-72529A3F0444} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\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 (data) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{70319375-185E-11F0-9A21-72529A3F0444} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe 5764 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5764 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4740 iexplore.exe 1524 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4740 iexplore.exe 1524 iexplore.exe 1524 iexplore.exe 4740 iexplore.exe 6084 IEXPLORE.EXE 6084 IEXPLORE.EXE 3368 IEXPLORE.EXE 3368 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 5148 rundll32mgr.exe 5764 WaterMark.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1200 wrote to memory of 4344 1200 rundll32.exe 84 PID 1200 wrote to memory of 4344 1200 rundll32.exe 84 PID 1200 wrote to memory of 4344 1200 rundll32.exe 84 PID 4344 wrote to memory of 5148 4344 rundll32.exe 85 PID 4344 wrote to memory of 5148 4344 rundll32.exe 85 PID 4344 wrote to memory of 5148 4344 rundll32.exe 85 PID 5148 wrote to memory of 5764 5148 rundll32mgr.exe 88 PID 5148 wrote to memory of 5764 5148 rundll32mgr.exe 88 PID 5148 wrote to memory of 5764 5148 rundll32mgr.exe 88 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 4940 5764 WaterMark.exe 89 PID 5764 wrote to memory of 1524 5764 WaterMark.exe 101 PID 5764 wrote to memory of 1524 5764 WaterMark.exe 101 PID 5764 wrote to memory of 4740 5764 WaterMark.exe 102 PID 5764 wrote to memory of 4740 5764 WaterMark.exe 102 PID 4740 wrote to memory of 6084 4740 iexplore.exe 103 PID 4740 wrote to memory of 6084 4740 iexplore.exe 103 PID 4740 wrote to memory of 6084 4740 iexplore.exe 103 PID 1524 wrote to memory of 3368 1524 iexplore.exe 104 PID 1524 wrote to memory of 3368 1524 iexplore.exe 104 PID 1524 wrote to memory of 3368 1524 iexplore.exe 104
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b494b160988f95c85119ea973f54a9e0.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1200 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b494b160988f95c85119ea973f54a9e0.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4344 -
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:5148 -
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:5764 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe5⤵PID:4940
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 2126⤵
- Program crash
PID:5456
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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:1524 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1524 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3368
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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:4740 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4740 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:6084
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 6083⤵
- Program crash
PID:2912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4344 -ip 43441⤵PID:2564
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4940 -ip 49401⤵PID:2480
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187
Filesize471B
MD515edd1b18d01ba2a613d62919ed706ab
SHA1702cd3e62466b46eaa362e11fdeb5add76ba97f1
SHA256beecd9f01075baf462dfc3e075918ee42b914d03e6704f94fe1a41526a6f0f72
SHA5129176a541226bb43e5ff8ef7dcb558e44776e788ff80aff00b3ea8715a64d850b714586aafb0bdd1bac5d24b85357367a991915b89818242fb693f54edf7859f0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187
Filesize412B
MD5659aefc56a321c7f7b13d79c81022da4
SHA1ba05244434c4b079082d777d23b6bc97ebb6aba1
SHA2560084b8ca495a8c850fa1a97e348bd3b47860dfc681c095d041f05c091d00cfb8
SHA512969f4a6886a34ae5e4fcbbf67982c865b843bf1fc503d50e1717608425d080967bcea92ac3baa6e9c5c8ac7d485c2ef6501fc13bf6cc70684ee5bb8ef00b5bb8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187
Filesize412B
MD513a2b4d0124173a4898172d68c048957
SHA1458702697395f8630055c304dfbf27bc1920c2ef
SHA256afb3ef290e54e84f0630958820e6efb8ce52782015ce549891ae469a3ace9834
SHA51257966315c18713b2b0fcda6ca54b8ccbaa5cd2bf0248d4442c8246f113bc90aebffaf234803febcd64055690abf8a402e6069e7a70fdfac574eba525ccb32539
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{702CCE90-185E-11F0-9A21-72529A3F0444}.dat
Filesize3KB
MD56662c7ac45dc23d01d24020540b7edf0
SHA1e3a80dc05a16bf26e2ba425bdaa6e64bd81017fd
SHA25635214d2471896ba1a381688c399fc76b235732921c1fac52d305013cc3723a21
SHA51275ff28e1b19851a2873b458f002378e94240bc01ace0618c07b53a35f2613cf198e1c475f3a76cffa45557830ae8d849617bf01042346966c92b669a592ef2d7
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{70319375-185E-11F0-9A21-72529A3F0444}.dat
Filesize5KB
MD577223653cc9d6507a6dac855e9cbde07
SHA164bb1890ba59bd2bf2d2b211cff9cf5d155e91cf
SHA256d7bc7c11f4079f1157a679d19e5a666f505896d1f322d57e33f0bfd3eebb5907
SHA5125a52fe80093e4637198966a7220b28508306b5d4c3c159b9c733f679a08d5292f626dbed7e1a8254951a1400660896dd565cf359b4f5272ea9b1100b0d37d1ad
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
423KB
MD55c282cc69b8932ab64e6dd2f29f64309
SHA1d503253b304cbe43d4b3c25dd6574ce6dce8bada
SHA2563b2a8c64dc66a32543f22df3a2271ca07319428e48a532037d34adfb324cd4e4
SHA512131f855df09cdf945b3a9462b59ba86bc74d190e9b59357518fb0c9365dab9e86905d00d0cfd8d394b12a548a2f9ca5819119118b7356692a8f0db963671332f