Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24/08/2024, 17:02
Static task
static1
Behavioral task
behavioral1
Sample
bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe
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Size
4.2MB
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MD5
bf0e1dd28c2d2421d76a32fe7669c2e7
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SHA1
7dc453f0c344c31d11cc51c7e699ed7d50f34ce4
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SHA256
cb5172bfa87601893db85f4558bd8fa62b459ca519d756d8d5a07158c73d85d4
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SHA512
7d9051821e9b61613726c80901ef578778c9bc5be463ac36a59594c9554ecb0eb143eb43d50bd8c1f32cd91e6b6e82924c4aafa9264cfed0f2c96eb59f54149c
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SSDEEP
98304:3S2561p5quZ4we8KXkJB/B65lsjyCDE2ZF313c35xMqOC:3TULIuZ+8K+BmCxf313yxAC
Malware Config
Signatures
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Uses Session Manager for persistence 2 TTPs 3 IoCs
Creates Session Manager registry key to run executable early in system boot.
description ioc Process Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet002\Control\Session manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 reg.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 reg.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 reg.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winexec32 = "C:\\windows\\winexec32.exe" bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 856 sc.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 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 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4224 schtasks.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4244 wrote to memory of 4036 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 84 PID 4244 wrote to memory of 4036 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 84 PID 4244 wrote to memory of 4036 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 84 PID 4244 wrote to memory of 4224 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 93 PID 4244 wrote to memory of 4224 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 93 PID 4244 wrote to memory of 4224 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 93 PID 4244 wrote to memory of 856 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 94 PID 4244 wrote to memory of 856 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 94 PID 4244 wrote to memory of 856 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 94 PID 4244 wrote to memory of 8 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 96 PID 4244 wrote to memory of 8 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 96 PID 4244 wrote to memory of 8 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 96 PID 4244 wrote to memory of 1596 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 97 PID 4244 wrote to memory of 1596 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 97 PID 4244 wrote to memory of 1596 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 97 PID 4244 wrote to memory of 1908 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 99 PID 4244 wrote to memory of 1908 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 99 PID 4244 wrote to memory of 1908 4244 bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bf0e1dd28c2d2421d76a32fe7669c2e7_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\schtasks.exeschtasks /delete /TN startt /f2⤵
- System Location Discovery: System Language Discovery
PID:4036
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn startt /tr c:\sys.bat /sc onstart /ru system2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4224
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C:\Windows\SysWOW64\sc.exesc delete GbpSv2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:856
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C:\Windows\SysWOW64\reg.exereg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f2⤵
- Uses Session Manager for persistence
- System Location Discovery: System Language Discovery
PID:8
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C:\Windows\SysWOW64\reg.exereg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f2⤵
- Uses Session Manager for persistence
- System Location Discovery: System Language Discovery
PID:1596
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C:\Windows\SysWOW64\reg.exereg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f2⤵
- Uses Session Manager for persistence
- System Location Discovery: System Language Discovery
PID:1908
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Network
MITRE ATT&CK Enterprise v15
Execution
Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1