Analysis
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max time kernel
103s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250610-en -
resource tags
arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system -
submitted
04/07/2025, 17:40
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_1c72367957ae0f222df760a6dc3dd540.dll
Resource
win10v2004-20250610-en
General
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Target
JaffaCakes118_1c72367957ae0f222df760a6dc3dd540.dll
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Size
239KB
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MD5
1c72367957ae0f222df760a6dc3dd540
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SHA1
348efcfdfc50737007890d89be7bb7819b1a727e
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SHA256
37b2f911915b4612170cd6d0e60a6c82ec6cb375c4e309f5f788531d724a1470
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SHA512
dc966cee81dbaee76708abb21ea91889066fc8fd9c2b3ee0527110ba8c870fce6606727b2bf445ca5464cc9baf47933fc04a32e88e325a8e19009889ca23742b
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SSDEEP
6144:7gmoADlSUSWIlbuks3mGvnDpNohzjCULspwAz06:7BoADl+lbuk492ha8sq6
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 5384 rundll32mgr.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/5384-13-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-16-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-14-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-12-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-11-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-9-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-8-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-7-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral1/memory/5384-6-0x0000000000400000-0x000000000041A000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 3 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 IEXPLORE.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\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-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31190282" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3486175764" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3489925652" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31190282" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "458415806" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FB57BE5A-58FD-11F0-B231-5AEF883BB291} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-815616237-4012932787-4224613991-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe 5384 rundll32mgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5384 rundll32mgr.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 116 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 116 iexplore.exe 116 iexplore.exe 4188 IEXPLORE.EXE 4188 IEXPLORE.EXE 4188 IEXPLORE.EXE 4188 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 5384 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4044 wrote to memory of 3052 4044 rundll32.exe 85 PID 4044 wrote to memory of 3052 4044 rundll32.exe 85 PID 4044 wrote to memory of 3052 4044 rundll32.exe 85 PID 3052 wrote to memory of 5384 3052 rundll32.exe 86 PID 3052 wrote to memory of 5384 3052 rundll32.exe 86 PID 3052 wrote to memory of 5384 3052 rundll32.exe 86 PID 5384 wrote to memory of 116 5384 rundll32mgr.exe 87 PID 5384 wrote to memory of 116 5384 rundll32mgr.exe 87 PID 116 wrote to memory of 4188 116 iexplore.exe 88 PID 116 wrote to memory of 4188 116 iexplore.exe 88 PID 116 wrote to memory of 4188 116 iexplore.exe 88
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c72367957ae0f222df760a6dc3dd540.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c72367957ae0f222df760a6dc3dd540.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- 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:5384 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:116 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:116 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4188
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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\B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0
Filesize471B
MD5db3f2e41632254f91f7e5e41942d8ff0
SHA17da106440ca2f41c46abf0c425b49bbce80a1cfb
SHA256601e2bdca83d313ce5087a94b902e3a8237c1255e1221deeb40b3ae5c3a9d9d3
SHA5120cb09d9c84a09722a83150f24caf27cd72f873f77e765b45ac00b177c895f095d9126aafbba60aa3c54b2d3acbee104aa5d0ad1942aca4038586a2242528fbfe
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B398B80134F72209547439DB21AB308D_9F6005AF34C7906F717D420F892FD6D0
Filesize400B
MD55a41de996b6770373fe9dddae43ef472
SHA14b93ccb262fb0cee8b56fe050a404d2fd8ad6b1a
SHA256c4454c3760d61bde8d4d97944a906555a8c380b642c8f35b39faebca84dbdce0
SHA512196efd3752fbdb73a43b7f095f008680edf4a022a65dac37ad38fd7be29ece2a742b4ff21bd40e1424f7ca9394a5171d61bcbf76d59138d91571729cf693731c
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
88KB
MD5a61ea5f2325332c52bff5bce3d161336
SHA13a883b8241f5f2efaa76367240db800d78a0209c
SHA256e6f8a54ed663061527ab46b8e8efc2a0f3c99ae77829c0be0e50eb5b1b48415b
SHA512fae031e0e7dcd719240bfe94a3f78d1aac73060324d5b65e0cbe564ce6d6781aaa5e930f0729293e3b502b7d07f53f3a72fb2048d44d93d36851aab8330479e5