Analysis
-
max time kernel
150s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01-11-2022 18:48
Static task
static1
Behavioral task
behavioral1
Sample
REQUEST_.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
REQUEST_.exe
Resource
win10v2004-20220812-en
General
-
Target
REQUEST_.exe
-
Size
835KB
-
MD5
0caf4f8bc47dc7226740d023f654e937
-
SHA1
eea58b2403f0aaf088b272b948eeaaf6f87009cc
-
SHA256
0d8783b653d2a02641f6b7684378b57a5cc6e1cf72521c0a0f378b1c6e74e618
-
SHA512
3cacca879960ca9b9c12fd0bdd72c81b98601c33d531fb24bb259d6c45f09f23e1f6a5a0720af5236d2239d83b62eaf315bd1b39e9ed67a73828318f1155e268
-
SSDEEP
12288:rEVv2iNsAJ8YQNb4tQ3y/Q7AJFGWYKJH0bOt1BNvn1C0XtaPwL/UL6hDRgkADe:YF1nCNb4ucQ0JbY83nvn1C0UMg6hDRj
Malware Config
Extracted
remcos
XP
xpremcuz300622.ddns.net:3542
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
oos.exe
-
delete_file
false
-
hide_file
true
-
hide_keylog_file
false
-
install_flag
true
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Remcos-MMP2I7
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
kkl
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
oos.exeoos.exepid process 1868 oos.exe 1664 oos.exe -
Loads dropped DLL 1 IoCs
Processes:
cmd.exepid process 1548 cmd.exe -
Adds Run key to start application 2 TTPs 8 IoCs
Processes:
REQUEST_.exeoos.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ REQUEST_.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" REQUEST_.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ oos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" oos.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ oos.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" oos.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ REQUEST_.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kkl = "\"C:\\Users\\Admin\\AppData\\Roaming\\oos.exe\"" REQUEST_.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
REQUEST_.exeoos.exedescription pid process target process PID 1824 set thread context of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1868 set thread context of 1664 1868 oos.exe oos.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
REQUEST_.exepid process 1824 REQUEST_.exe 1824 REQUEST_.exe 1824 REQUEST_.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
REQUEST_.exedescription pid process Token: SeDebugPrivilege 1824 REQUEST_.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
oos.exepid process 1664 oos.exe -
Suspicious use of WriteProcessMemory 50 IoCs
Processes:
REQUEST_.exeREQUEST_.exeWScript.execmd.exeoos.exedescription pid process target process PID 1824 wrote to memory of 1972 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1972 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1972 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1972 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1696 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1696 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1696 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1696 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1640 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1640 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1640 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1640 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1824 wrote to memory of 1960 1824 REQUEST_.exe REQUEST_.exe PID 1960 wrote to memory of 320 1960 REQUEST_.exe WScript.exe PID 1960 wrote to memory of 320 1960 REQUEST_.exe WScript.exe PID 1960 wrote to memory of 320 1960 REQUEST_.exe WScript.exe PID 1960 wrote to memory of 320 1960 REQUEST_.exe WScript.exe PID 320 wrote to memory of 1548 320 WScript.exe cmd.exe PID 320 wrote to memory of 1548 320 WScript.exe cmd.exe PID 320 wrote to memory of 1548 320 WScript.exe cmd.exe PID 320 wrote to memory of 1548 320 WScript.exe cmd.exe PID 1548 wrote to memory of 1868 1548 cmd.exe oos.exe PID 1548 wrote to memory of 1868 1548 cmd.exe oos.exe PID 1548 wrote to memory of 1868 1548 cmd.exe oos.exe PID 1548 wrote to memory of 1868 1548 cmd.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe PID 1868 wrote to memory of 1664 1868 oos.exe oos.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"{path}"2⤵
-
C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"{path}"2⤵
-
C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"{path}"2⤵
-
C:\Users\Admin\AppData\Local\Temp\REQUEST_.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\oos.exe"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\oos.exeC:\Users\Admin\AppData\Roaming\oos.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\oos.exe"{path}"6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\install.vbsFilesize
398B
MD5a5d3440f90cbfae712166e20870eaed7
SHA1cc1e1a2945eb2ad475234344f7527ad9e9873647
SHA256960a570da95b8d16809cbcc18e8ca4d81e16cb666354ddc1d572daf93f291f02
SHA512d3136a280fbb326ccc5cb5ab1214aed8ccd6baa7f3f89ef9e0b5bf391a957dab2c121640bb056e6cbda0594f83133c4dbb4e1e2f0e290b44a401cd2cf8cfd4aa
-
C:\Users\Admin\AppData\Roaming\oos.exeFilesize
835KB
MD50caf4f8bc47dc7226740d023f654e937
SHA1eea58b2403f0aaf088b272b948eeaaf6f87009cc
SHA2560d8783b653d2a02641f6b7684378b57a5cc6e1cf72521c0a0f378b1c6e74e618
SHA5123cacca879960ca9b9c12fd0bdd72c81b98601c33d531fb24bb259d6c45f09f23e1f6a5a0720af5236d2239d83b62eaf315bd1b39e9ed67a73828318f1155e268
-
C:\Users\Admin\AppData\Roaming\oos.exeFilesize
835KB
MD50caf4f8bc47dc7226740d023f654e937
SHA1eea58b2403f0aaf088b272b948eeaaf6f87009cc
SHA2560d8783b653d2a02641f6b7684378b57a5cc6e1cf72521c0a0f378b1c6e74e618
SHA5123cacca879960ca9b9c12fd0bdd72c81b98601c33d531fb24bb259d6c45f09f23e1f6a5a0720af5236d2239d83b62eaf315bd1b39e9ed67a73828318f1155e268
-
C:\Users\Admin\AppData\Roaming\oos.exeFilesize
835KB
MD50caf4f8bc47dc7226740d023f654e937
SHA1eea58b2403f0aaf088b272b948eeaaf6f87009cc
SHA2560d8783b653d2a02641f6b7684378b57a5cc6e1cf72521c0a0f378b1c6e74e618
SHA5123cacca879960ca9b9c12fd0bdd72c81b98601c33d531fb24bb259d6c45f09f23e1f6a5a0720af5236d2239d83b62eaf315bd1b39e9ed67a73828318f1155e268
-
\Users\Admin\AppData\Roaming\oos.exeFilesize
835KB
MD50caf4f8bc47dc7226740d023f654e937
SHA1eea58b2403f0aaf088b272b948eeaaf6f87009cc
SHA2560d8783b653d2a02641f6b7684378b57a5cc6e1cf72521c0a0f378b1c6e74e618
SHA5123cacca879960ca9b9c12fd0bdd72c81b98601c33d531fb24bb259d6c45f09f23e1f6a5a0720af5236d2239d83b62eaf315bd1b39e9ed67a73828318f1155e268
-
memory/320-76-0x0000000000000000-mapping.dmp
-
memory/1548-80-0x0000000000000000-mapping.dmp
-
memory/1664-104-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1664-100-0x000000000043168C-mapping.dmp
-
memory/1664-105-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1664-106-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1824-54-0x0000000000030000-0x0000000000106000-memory.dmpFilesize
856KB
-
memory/1824-58-0x0000000004C80000-0x0000000004CFA000-memory.dmpFilesize
488KB
-
memory/1824-57-0x0000000005990000-0x0000000005A4E000-memory.dmpFilesize
760KB
-
memory/1824-56-0x0000000004650000-0x0000000004670000-memory.dmpFilesize
128KB
-
memory/1824-55-0x0000000075571000-0x0000000075573000-memory.dmpFilesize
8KB
-
memory/1868-85-0x0000000000FB0000-0x0000000001086000-memory.dmpFilesize
856KB
-
memory/1868-83-0x0000000000000000-mapping.dmp
-
memory/1960-62-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-77-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-75-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-72-0x000000000043168C-mapping.dmp
-
memory/1960-71-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-64-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-69-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-65-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-66-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-67-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-60-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
-
memory/1960-59-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB