Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2024, 22:08
Static task
static1
Behavioral task
behavioral1
Sample
10af840c6fab21d128bd3358c3d8b567_JaffaCakes118.dll
Resource
win7-20240903-en
General
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Target
10af840c6fab21d128bd3358c3d8b567_JaffaCakes118.dll
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Size
120KB
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MD5
10af840c6fab21d128bd3358c3d8b567
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SHA1
5d714652d10aca293787fbc250c5d4bad14f292c
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SHA256
d07b6e32b5993974c5662dbfa6dae23a623cf5f824451336facba3776d1be5bb
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SHA512
9db089422b24d5d72662f74a44fe71c31b4c71e14571bd820b427015f16f646c0e2e0ff954581d578d0afac97a8ab46478cab1b29c58bc781c930990e6f0fc05
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SSDEEP
3072:N61Ye3TaEu2CoCcn3zO7A4D8Xzd125+kV4m13EaOlfBL:sTa12CoCckAe8jd12FmL
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 3960 rundll32Srv.exe 3176 DesktopLayer.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
resource yara_rule behavioral2/files/0x0009000000023479-3.dat upx behavioral2/memory/3960-4-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/3960-7-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/3176-15-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/3176-14-0x0000000000400000-0x000000000042C000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxA9DC.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 -
Program crash 1 IoCs
pid pid_target Process procid_target 3712 3944 WerFault.exe 81 -
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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3853151487" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "434758305" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3847370559" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3853151487" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31135200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{10206642-81D4-11EF-BB4F-6ADB259EA846} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31135200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3847370559" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3988 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3988 iexplore.exe 3988 iexplore.exe 4692 IEXPLORE.EXE 4692 IEXPLORE.EXE 4692 IEXPLORE.EXE 4692 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 212 wrote to memory of 3944 212 rundll32.exe 81 PID 212 wrote to memory of 3944 212 rundll32.exe 81 PID 212 wrote to memory of 3944 212 rundll32.exe 81 PID 3944 wrote to memory of 3960 3944 rundll32.exe 82 PID 3944 wrote to memory of 3960 3944 rundll32.exe 82 PID 3944 wrote to memory of 3960 3944 rundll32.exe 82 PID 3960 wrote to memory of 3176 3960 rundll32Srv.exe 84 PID 3960 wrote to memory of 3176 3960 rundll32Srv.exe 84 PID 3960 wrote to memory of 3176 3960 rundll32Srv.exe 84 PID 3176 wrote to memory of 3988 3176 DesktopLayer.exe 85 PID 3176 wrote to memory of 3988 3176 DesktopLayer.exe 85 PID 3988 wrote to memory of 4692 3988 iexplore.exe 87 PID 3988 wrote to memory of 4692 3988 iexplore.exe 87 PID 3988 wrote to memory of 4692 3988 iexplore.exe 87
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10af840c6fab21d128bd3358c3d8b567_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10af840c6fab21d128bd3358c3d8b567_JaffaCakes118.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3944 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3960 -
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:3176 -
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:3988 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3988 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 6083⤵
- Program crash
PID:3712
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3944 -ip 39441⤵PID:4072
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
MD56de4427d02d49cee2c46a8fead1fafa8
SHA1bee49bf0e4452ca72442face8e655bf4a8c3af17
SHA25646d5cd7ff558e5c788807eb674587359c6a660cef091eb420676977e49833d53
SHA512c80311bb92f9f49de96d06e9a76a3ef0310365999f00f401fd003d438b66744a88f093b5887e1723c6b8179798697ec24c4b2bda489323337f6cec6d28ef6434
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD53fa81aacc2b7480f41623b3492df88ff
SHA144b09e2da2a46c44e254c925e8682a9cf9a016b3
SHA25628b09bdcf83be6716a3329df98fd1cef5781cbea0992b2bf045a2a4efbe99629
SHA512f7d8160fa957bf1af5a740b05e5e2e636a43356cf3f74173c73901c97322284ce72a7bf77cea9310ef3cae3064f1f5926bbe8e1e6cf5ed1bb5a00d5ba460fab0
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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
56KB
MD583f5a64a268f21c7c6d6dd54ce8a88c2
SHA161376a625d7d389c5c1646aa534f1ef3135da2f4
SHA256c0b96c44a00557b60df0fa0ac9b129ac07d5b93c669f4a3c98276d113ff6962c
SHA5124cddbd07e10c93d23efd1560084f0482520f90f252d6e90380222f0d13ac3bf3587fbddb3033a6b06d550838731db072001197cb3283e4686f5b8bd5b6d894f1