Analysis
- max time kernel
150s - max time network
136s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
29/04/2026, 10:33
General
- Target 6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892.exe
- Size 640KB
- Sample260429-mll5faex4n
- SHA256 6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892
Malware Config
Signatures
- Family: Farfli
Farfli is a Windows backdoor written in C++.
- Detects Farfli Backdoor 3 IoCs
- Badlisted process makes network request 8 IoCs
Network request originating from process or tool commonly abused by malware.
- Deletes itself 1 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 5 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892.exe"C:\Users\Admin\AppData\Local\Temp\6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\pbmjcwx.exe "C:\Users\Admin\AppData\Local\Temp\6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
-
-
C:\Users\Admin\AppData\Local\Temp\pbmjcwx.exeC:\Users\Admin\AppData\Local\Temp\\pbmjcwx.exe "C:\Users\Admin\AppData\Local\Temp\6c131a87f0108f3aaac7a4241cd4a65bf457e7eb257b7897ebeb95d5cc21d892.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\aoxxijl\ypfib.piy",RAFlush C:\Users\Admin\AppData\Local\Temp\pbmjcwx.exe4⤵
- Badlisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\wiseman.exe"C:\wiseman.exe"5⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
-
-
-
-
C:\wiseman.exeC:\wiseman.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
pbmjcwx.exe
wiseman.exe
ypfib.piy
memory/380-19-0x0000000002AE0000-0x0000000002C2D000-memory.dmp
memory/380-39-0x0000000010000000-0x0000000010054000-memory.dmp
memory/380-27-0x0000000010000000-0x0000000010054000-memory.dmp
memory/380-18-0x0000000010000000-0x0000000010054000-memory.dmp
memory/380-20-0x0000000002A50000-0x0000000002A56000-memory.dmp
memory/380-14-0x0000000010000000-0x0000000010054000-memory.dmp
memory/720-21-0x00000000009E0000-0x0000000000B2D000-memory.dmp
memory/720-75-0x00000000009E0000-0x0000000000B2D000-memory.dmp
memory/724-0-0x0000000000400000-0x000000000049E01B-memory.dmp
memory/724-3-0x0000000000A90000-0x0000000000BDD000-memory.dmp
memory/724-2-0x0000000000400000-0x000000000049E01B-memory.dmp
memory/2988-22-0x00000000009D0000-0x0000000000B1D000-memory.dmp
memory/4848-10-0x0000000000A00000-0x0000000000B4D000-memory.dmp
memory/4848-11-0x0000000000400000-0x000000000049E01B-memory.dmp