Analysis
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max time kernel
149s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04-01-2025 12:38
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe
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Size
248KB
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MD5
79ba3a3666976d7b8c14ec98c7a2bed0
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SHA1
b7607e097c70dcb5e96df839b1eeb8c3c240133f
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SHA256
76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7
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SHA512
e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec
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SSDEEP
3072:KU4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwjeWJ2NJucbPvJ1nlYZC:K1i+f3uBmLbR9JWJWqJYJuEvPr
Malware Config
Signatures
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Luminosity
Luminosity is a RAT family that was on sale, while claiming to be a system administration utility.
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Luminosity family
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\824174\\sysmon.exe\"" sysmon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\"" sysmon.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe -
Executes dropped EXE 1 IoCs
pid Process 1632 sysmon.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\824174\\sysmon.exe\"" sysmon.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\clientsvr.exe sysmon.exe File created C:\Windows\SysWOW64\clientsvr.exe sysmon.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 2 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 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysmon.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe 1632 sysmon.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1632 sysmon.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1632 sysmon.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5032 wrote to memory of 1632 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe 83 PID 5032 wrote to memory of 1632 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe 83 PID 5032 wrote to memory of 1632 5032 JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe 83 PID 1632 wrote to memory of 5032 1632 sysmon.exe 81 PID 1632 wrote to memory of 5032 1632 sysmon.exe 81 PID 1632 wrote to memory of 5032 1632 sysmon.exe 81 PID 1632 wrote to memory of 5032 1632 sysmon.exe 81 PID 1632 wrote to memory of 5032 1632 sysmon.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79ba3a3666976d7b8c14ec98c7a2bed0.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:5032 -
C:\ProgramData\824174\sysmon.exe"C:\ProgramData\824174\sysmon.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1632
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper 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
248KB
MD579ba3a3666976d7b8c14ec98c7a2bed0
SHA1b7607e097c70dcb5e96df839b1eeb8c3c240133f
SHA25676197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7
SHA512e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec