Analysis
- max time kernel
145s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
04/10/2023, 16:03
General
- Target tcpview.exe
- Size 3.8MB
- Sample231004-thcj6aeh65
- SHA256 255d887e4aee44b4a811fd99c76d7df6ce442316125d236f9b3891bd56b82f8c
Malware Config
Signatures
- Phemedrone
An information and wallet stealer written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tcpview.exe"C:\Users\Admin\AppData\Local\Temp\tcpview.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\7CFWVPWU.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\7CFWVPWU.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
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C:\ProgramData\Start Menu\9HBYJW52.exe"C:\ProgramData\Start Menu\9HBYJW52.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
9HBYJW52.exe
9HBYJW52.exe
9HBYJW52.exe
store.jfm
7CFWVPWU.exe
7CFWVPWU.exe
memory/864-29-0x000000006DF70000-0x000000006DF80000-memory.dmp
memory/3400-1-0x00007FFFC3280000-0x00007FFFC3D41000-memory.dmp
memory/3400-0-0x00000000009D0000-0x0000000000DA6000-memory.dmp
memory/3400-27-0x00007FFFC3280000-0x00007FFFC3D41000-memory.dmp
memory/4092-25-0x00007FFFC3280000-0x00007FFFC3D41000-memory.dmp
memory/4092-28-0x000000001BF80000-0x000000001BF90000-memory.dmp
memory/4092-30-0x00007FFFC3280000-0x00007FFFC3D41000-memory.dmp
memory/4092-31-0x000000001BF80000-0x000000001BF90000-memory.dmp
memory/4092-32-0x00007FFFC3280000-0x00007FFFC3D41000-memory.dmp
memory/4092-24-0x0000000000FE0000-0x0000000000FFC000-memory.dmp
memory/4324-66-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-75-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-49-0x0000029548440000-0x0000029548450000-memory.dmp
memory/4324-67-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-68-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-69-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-70-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-71-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-72-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-73-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-74-0x0000029550A20000-0x0000029550A21000-memory.dmp
memory/4324-65-0x00000295509F0000-0x00000295509F1000-memory.dmp
memory/4324-76-0x0000029550640000-0x0000029550641000-memory.dmp
memory/4324-77-0x0000029550630000-0x0000029550631000-memory.dmp
memory/4324-79-0x0000029550640000-0x0000029550641000-memory.dmp
memory/4324-82-0x0000029550630000-0x0000029550631000-memory.dmp
memory/4324-85-0x0000029550570000-0x0000029550571000-memory.dmp
memory/4324-33-0x0000029548340000-0x0000029548350000-memory.dmp
memory/4324-97-0x0000029550770000-0x0000029550771000-memory.dmp
memory/4324-99-0x0000029550780000-0x0000029550781000-memory.dmp
memory/4324-100-0x0000029550780000-0x0000029550781000-memory.dmp
memory/4324-101-0x0000029550890000-0x0000029550891000-memory.dmp