Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
23-07-2024 17:15
Static task
static1
Behavioral task
behavioral1
Sample
687caf067849f388fbe442a4c2650765_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
687caf067849f388fbe442a4c2650765_JaffaCakes118.exe
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Size
1.1MB
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MD5
687caf067849f388fbe442a4c2650765
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SHA1
1e80d2bd0005f4a2f43c7ebf246a6922c667898e
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SHA256
fe755742c5e65ce96b1c21e84bec688153d7bae1a89d4e3299a5802fec5805da
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SHA512
e823441bdf42099ff521ebbf5187733801e79eb447f6ee55d6fc333066313881ed2404d1a53b8db469d5be7c4f37e10bf21ae307d8824e314c0b3da0c238685f
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SSDEEP
24576:0E2hlP2AQ94zrk0TjO0duGNHbQXGR50393DsJgWRV:REPYV0G47Q2R50tzsBRV
Malware Config
Extracted
latentbot
diretoriawow.zapto.org
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe" server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe" services.exe -
Adds policy Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run services.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe" services.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe" server.exe -
Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\ services.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe" services.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y} server.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\ server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe" server.exe -
Executes dropped EXE 3 IoCs
pid Process 2920 server.exe 2728 fservice.exe 2336 services.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Wine 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe -
Loads dropped DLL 9 IoCs
pid Process 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 2920 server.exe 2920 server.exe 2336 services.exe 2336 services.exe 2728 fservice.exe 2920 server.exe 2856 DllHost.exe -
resource yara_rule behavioral1/files/0x000c000000012277-9.dat upx behavioral1/memory/2532-11-0x00000000061A0000-0x000000000639E000-memory.dmp upx behavioral1/memory/2920-19-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2920-25-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2728-34-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-54-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2920-72-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2728-69-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-77-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-78-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-79-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-80-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-81-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-82-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-83-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-84-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-85-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-86-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-87-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-88-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-89-0x0000000000400000-0x00000000005FE000-memory.dmp upx behavioral1/memory/2336-90-0x0000000000400000-0x00000000005FE000-memory.dmp upx -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\ server.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\ services.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\fservice.exe server.exe File opened for modification C:\Windows\SysWOW64\fservice.exe server.exe File created C:\Windows\SysWOW64\fservice.exe fservice.exe File opened for modification C:\Windows\SysWOW64\fservice.exe fservice.exe File created C:\Windows\SysWOW64\winkey.dll services.exe File created C:\Windows\SysWOW64\reginv.dll services.exe File created C:\Windows\SysWOW64\fservice.exe services.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File created C:\Windows\system\sservice.exe services.exe File opened for modification C:\Windows\system\sservice.exe services.exe File created C:\Windows\system\sservice.exe server.exe File opened for modification C:\Windows\system\sservice.exe server.exe File created C:\Windows\services.exe fservice.exe File opened for modification C:\Windows\services.exe fservice.exe File created C:\Windows\system\sservice.exe fservice.exe File opened for modification C:\Windows\system\sservice.exe fservice.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 10 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 server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fservice.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NET.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NET.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe 2336 services.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2856 DllHost.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 2336 services.exe 2336 services.exe -
Suspicious use of WriteProcessMemory 32 IoCs
description pid Process procid_target PID 2532 wrote to memory of 2920 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 30 PID 2532 wrote to memory of 2920 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 30 PID 2532 wrote to memory of 2920 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 30 PID 2532 wrote to memory of 2920 2532 687caf067849f388fbe442a4c2650765_JaffaCakes118.exe 30 PID 2920 wrote to memory of 2728 2920 server.exe 32 PID 2920 wrote to memory of 2728 2920 server.exe 32 PID 2920 wrote to memory of 2728 2920 server.exe 32 PID 2920 wrote to memory of 2728 2920 server.exe 32 PID 2728 wrote to memory of 2336 2728 fservice.exe 33 PID 2728 wrote to memory of 2336 2728 fservice.exe 33 PID 2728 wrote to memory of 2336 2728 fservice.exe 33 PID 2728 wrote to memory of 2336 2728 fservice.exe 33 PID 2336 wrote to memory of 340 2336 services.exe 34 PID 2336 wrote to memory of 340 2336 services.exe 34 PID 2336 wrote to memory of 340 2336 services.exe 34 PID 2336 wrote to memory of 340 2336 services.exe 34 PID 2336 wrote to memory of 2892 2336 services.exe 35 PID 2336 wrote to memory of 2892 2336 services.exe 35 PID 2336 wrote to memory of 2892 2336 services.exe 35 PID 2336 wrote to memory of 2892 2336 services.exe 35 PID 2920 wrote to memory of 2008 2920 server.exe 38 PID 2920 wrote to memory of 2008 2920 server.exe 38 PID 2920 wrote to memory of 2008 2920 server.exe 38 PID 2920 wrote to memory of 2008 2920 server.exe 38 PID 2892 wrote to memory of 2860 2892 NET.exe 40 PID 2892 wrote to memory of 2860 2892 NET.exe 40 PID 2892 wrote to memory of 2860 2892 NET.exe 40 PID 2892 wrote to memory of 2860 2892 NET.exe 40 PID 340 wrote to memory of 2916 340 NET.exe 41 PID 340 wrote to memory of 2916 340 NET.exe 41 PID 340 wrote to memory of 2916 340 NET.exe 41 PID 340 wrote to memory of 2916 340 NET.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\687caf067849f388fbe442a4c2650765_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\687caf067849f388fbe442a4c2650765_JaffaCakes118.exe"1⤵
- Identifies Wine through registry keys
- Loads dropped DLL
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2532 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\SysWOW64\fservice.exeC:\Windows\system32\fservice.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728 -
C:\Windows\services.exeC:\Windows\services.exe -XP4⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336 -
C:\Windows\SysWOW64\NET.exeNET STOP srservice5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:340 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STOP srservice6⤵
- System Location Discovery: System Language Discovery
PID:2916
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C:\Windows\SysWOW64\NET.exeNET STOP navapsvc5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STOP navapsvc6⤵
- System Location Discovery: System Language Discovery
PID:2860
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C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\server.exe.bat3⤵
- System Location Discovery: System Language Discovery
PID:2008
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
PID:2856
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Defense Evasion
Modify Registry
4Pre-OS Boot
1Bootkit
1Virtualization/Sandbox Evasion
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
MD505c097baf25ef268e4393b1419c548d0
SHA1fe5c2e3cb7f6f40eb7fa5caec23a55e78c419cc1
SHA256730f73801eb303b20475d6aaef0615d0c713438946d07eeacc9581531b6d3c1d
SHA5127f5a4a71ca82145c238a67fcdb0d741afb7ceb24237ca77a6a915a26498fb7a9f74b1c2c5836db9c9c8e0685e095fe5e1527e6b0f727cb9187c02e0e3df337c5
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Filesize
129B
MD54f73a47eadc64c971ad4a3e09cceef9b
SHA17e782f6c004bfeb885ac5e05968ff8725a7a53bb
SHA256b6f7c895d22726f59e43964ef4140ed8ee4f5b298dbafcdca2a01a40f7bf3c6c
SHA5126332bffc816601e37217ad3111bf6658e8602857d92c97599cef1605c8ccb3c6e1fac7867be835f9fd26122a7d1ec34296ecfe9ca3a57cd47117036131c3f4d1
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Filesize
339KB
MD5b9bd61e5d4ed80c8dd06e6a7874175e0
SHA1e2321705b04cbbc4d4dcefb661230d49a9c92ed9
SHA256b8267b2de073317bd1625bcb28aaa8acebd874da9266d88ecd59e730f971826a
SHA51251a5af8cc78196f79df196bb69ecabaf3c0b63bd203e1f3be3f66c9ed522e44da4f394af231af53f8343387ea5a42d86236e32fe925c8826d6549d7d3d3713a8
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Filesize
36KB
MD5d4a3f90e159ffbcbc4f9740de4b7f171
SHA10542f5d1e2c23dca8d90766b3a8537dc3880e5c9
SHA2562200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77
SHA5125493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94
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Filesize
24KB
MD543e7d9b875c921ba6be38d45540fb9dd
SHA1f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4
SHA256f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b
SHA5122e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622