Analysis
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max time kernel
148s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19-09-2024 06:07
Behavioral task
behavioral1
Sample
eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe
Resource
win7-20240704-en
windows7-x64
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
15 signatures
150 seconds
General
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Target
eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe
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Size
186KB
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MD5
eaba9f90a8f41bc149c578fe6350875f
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SHA1
509aa36760737e9f4d038331137798adfba25dab
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SHA256
5129bca4bb22a33e7921697bbe858339abf7dcc4ee0b829a3e36f5fb2463e19e
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SHA512
0d3e09a3d4ec62d117ecbb32a3a8708f8a15f521ec964d24d6bf8361507032e50e8827ea1e67dd0316a1611553382900d7f8b0bbfd3d9d314dfb7ea2baf8a1bd
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SSDEEP
3072:4se+a4qmFBRCjNbc2NalmlwcuuZZCceyjLcjs8ZNXcbO9CsW5jWPO4kK03qYK:4seV45ChNL5uuZEQjCs4sbqVWtq
Score
8/10
Malware Config
Signatures
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Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\oczkugkx\Parameters\ServiceDll = "C:\\Windows\\system32\\hyxuakk.dll" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\oczkugkx\ImagePath = "%SystemRoot%\\System32\\svchost.exe -k netsvcs" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe -
Loads dropped DLL 4 IoCs
pid Process 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 744 rundll32.exe 744 rundll32.exe -
resource yara_rule behavioral2/memory/4300-0-0x0000000000400000-0x0000000000441000-memory.dmp upx behavioral2/memory/4300-21-0x00000000020E0000-0x0000000002104000-memory.dmp upx behavioral2/memory/4300-18-0x00000000020E0000-0x0000000002104000-memory.dmp upx behavioral2/memory/4300-27-0x00000000020E0000-0x0000000002104000-memory.dmp upx behavioral2/memory/4300-26-0x00000000020E0000-0x0000000002104000-memory.dmp upx behavioral2/memory/4300-22-0x0000000002110000-0x0000000002153000-memory.dmp upx behavioral2/memory/4300-39-0x00000000021B0000-0x00000000021F3000-memory.dmp upx behavioral2/memory/4300-40-0x00000000021B0000-0x00000000021F3000-memory.dmp upx behavioral2/memory/4300-41-0x00000000021B0000-0x00000000021F3000-memory.dmp upx behavioral2/memory/4300-46-0x00000000021B0000-0x00000000021F3000-memory.dmp upx behavioral2/memory/4300-52-0x00000000021B0000-0x00000000021F3000-memory.dmp upx behavioral2/memory/4300-50-0x00000000020E0000-0x0000000002104000-memory.dmp upx behavioral2/memory/4300-49-0x0000000000400000-0x0000000000441000-memory.dmp upx behavioral2/memory/744-53-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-54-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-72-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-74-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-73-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-71-0x0000000000970000-0x00000000009B3000-memory.dmp upx behavioral2/memory/744-77-0x0000000000970000-0x00000000009B3000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7B84FCD3-54CA-4B70-9C30-573839434BB8} eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe -
Modifies WinLogon 2 TTPs 8 IoCs
description ioc Process Key created \Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\WinLogon\Notify\thbuousi eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi\Asynchronous = "0" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi\Impersonate = "0" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi\DLLName = "hyxuakk.dll" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi\Logoff = "WLEventLogoff" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\thbuousi\Logon = "WLEventLogon" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\hyxuakk.dll eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe File created C:\Windows\SysWOW64\vsvvidp.dll rundll32.exe -
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 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language at.exe -
Modifies registry class 25 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Bfhevsqi\CLSID\ = "{7B84FCD3-54CA-4B70-9C30-573839434BB8}" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32\ = "c:\\windows\\SysWow64\\hyxuakk.dll" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32\ThreadingModel = "Apartment" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Bfhevsqi\ rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\Bfhevsqi\CLSID rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8} eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8} rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32\ = "c:\\windows\\SysWow64\\hyxuakk.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Bfhevsqi\ eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\Bfhevsqi\CLSID eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\Version = "82" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\Bfhevsqi rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Bfhevsqi\CLSID\ = "{7B84FCD3-54CA-4B70-9C30-573839434BB8}" rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\Bfhevsqi eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ProgID eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ProgID\ = "Bfhevsqi" eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ rundll32.exe Key created \Registry\Machine\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ProgID rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B84FCD3-54CA-4B70-9C30-573839434BB8}\ProgID\ = "Bfhevsqi" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe Token: SeDebugPrivilege 744 rundll32.exe Token: SeBackupPrivilege 4732 vssvc.exe Token: SeRestorePrivilege 4732 vssvc.exe Token: SeAuditPrivilege 4732 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 744 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4300 wrote to memory of 744 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 83 PID 4300 wrote to memory of 744 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 83 PID 4300 wrote to memory of 744 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 83 PID 4300 wrote to memory of 4340 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 84 PID 4300 wrote to memory of 4340 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 84 PID 4300 wrote to memory of 4340 4300 eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe 84 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\eaba9f90a8f41bc149c578fe6350875f_JaffaCakes118.exe"1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies WinLogon
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe "C:\Windows\system32\hyxuakk.dll",DllMain -2⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:744
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C:\Windows\SysWOW64\at.exeC:\Windows\system32\at.exe 16:1:00 /every:Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\hyxuakk.dll",DllMain -2⤵
- System Location Discovery: System Language Discovery
PID:4340
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4732
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Browser Extensions
1Server Software Component
1Terminal Services DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
100KB
MD50d589b43bfcf1b5644e7a8f37f1c3129
SHA163a66cfe7fa1880607cf5673a90ba8d6d9b18efc
SHA2566a4b252feea65d0a9d373523f2efc5837cb31b57330b2fe04d146b75b0ff58e3
SHA5122f10fe65922f29179fbc9c7776c7e5b4b4081b061c5591e77fdd6eeefb9a51fed05f2214d0d9ab1080459a313d58db97634544484d086a794b49b62b16dd3d20