Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
12/10/2026, 23:58
Static task
static1
Behavioral task
behavioral1
Sample
jaffacakes118_Backdoor.Win32.Rbot.gen.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
jaffacakes118_Backdoor.Win32.Rbot.gen.exe
Resource
win11ltsc2024-20260911-en
General
- Target jaffacakes118_Backdoor.Win32.Rbot.gen.exe
- Size 54KB
- Sample261012-31ea5scy3j
- SHA256 55653bf4c39f3008f3d75415ba401733a3c1824efd281741f88c8b5a64802b96
- MD5 0894e5cc5edf7c90203bf38bdee1ae23
- SHA1 df68cc8281521300ca24b6fb8ef37d2c52b44d06
- SHA512 0193a1b64fd04adc9a7ef2fda036feced14f8729eed65ca33b75c020a3839b2f6fcefe7d65617dcd5560128cc8e20fcbb454e39c45c3e788ddbe2e787ef61ee5
- SSDEEP 768:oSCXa5c7GQroUoDzLDhVI8E7niB3Np99xaXEu2Wrs15ZZAD0N8/p37E1dkIhpX:ZCnrI7Ynne998XEPWgo0N8/17E1Zn
- TLSH T17643F1CF18199EE4D9FD89F29AA8CAE4453CB2397BA5FC8FED4C34465AB78527121100
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
metasploit
-
encoder/fnstenv_mov
Signatures
- Family: MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
- Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" winplayer.exe - Executes dropped EXE 2 IoCs
pid Process 1880 winplayer.exe 1940 winplayer.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Windows\CurrentVersion\RunServices\Winamp Players = "winplayer.exe" winplayer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winamp Players = "winplayer.exe" winplayer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Winamp Players = "winplayer.exe" winplayer.exe Set value (str) \REGISTRY\USER\S-1-5-21-696679853-3915825385-3233721679-1000\Software\Microsoft\Windows\CurrentVersion\Run\Winamp Players = "winplayer.exe" winplayer.exe - Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\winplayer.exe jaffacakes118_Backdoor.Win32.Rbot.gen.exe File opened for modification C:\Windows\winplayer.exe jaffacakes118_Backdoor.Win32.Rbot.gen.exe File opened for modification C:\Windows\127.0.200.200 update.msiservers.lan winplayer.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname winplayer.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain winplayer.exe - 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_Backdoor.Win32.Rbot.gen.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winplayer.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe 1880 winplayer.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1880 winplayer.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4320 wrote to memory of 1880 4320 jaffacakes118_Backdoor.Win32.Rbot.gen.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Rbot.gen.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Rbot.gen.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4320 -
C:\Windows\winplayer.exeC:\Windows\winplayer.exe 1300 "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Backdoor.Win32.Rbot.gen.exe"2⤵
- Modifies security service
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1880
-
-
C:\Windows\winplayer.exewinplayer.exe1⤵
- Executes dropped EXE
PID:1940
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\winplayer.exe
- Size 54KB
- SHA256 55653bf4c39f3008f3d75415ba401733a3c1824efd281741f88c8b5a64802b96
- MD5 0894e5cc5edf7c90203bf38bdee1ae23
- SHA1 df68cc8281521300ca24b6fb8ef37d2c52b44d06
- SHA512 0193a1b64fd04adc9a7ef2fda036feced14f8729eed65ca33b75c020a3839b2f6fcefe7d65617dcd5560128cc8e20fcbb454e39c45c3e788ddbe2e787ef61ee5
- SSDEEP 768:oSCXa5c7GQroUoDzLDhVI8E7niB3Np99xaXEu2Wrs15ZZAD0N8/p37E1dkIhpX:ZCnrI7Ynne998XEPWgo0N8/17E1Zn
- TLSH T17643F1CF18199EE4D9FD89F29AA8CAE4453CB2397BA5FC8FED4C34465AB78527121100
- MD5 SHA1 SHA512 SSDEEP TLSH