Analysis
-
max time kernel
149s -
max time network
148s -
platform
windows10-1703_x64 -
resource
win10-20231129-en -
resource tags
arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system -
submitted
05/12/2023, 21:14
Static task
static1
Behavioral task
behavioral1
Sample
$R4S8Q5B.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
$R4S8Q5B.exe
Resource
win10-20231129-en
Behavioral task
behavioral3
Sample
$R4S8Q5B.exe
Resource
win10v2004-20231127-en
General
-
Target
$R4S8Q5B.exe
-
Size
911KB
-
MD5
5313272fd87d44ac3b60e976db857d49
-
SHA1
dbc5bdfa1b78d34fb4b3d3b9074ba449c7f29074
-
SHA256
9103e2815438759a349705607f3be586c2129551e74cd2a875a04faab7ac43a9
-
SHA512
271cfe471b50f340d36cb8b23be621883939a9ca85b1eb814bda8d65120eceaea139e159b32d2acf009e58e5df9aa709cebf0ffe0f638c14a577261c12ed3145
-
SSDEEP
24576:ZzDp2LTL98NShdlTJzZWHyKmgev5/uWO/X4f:Fp2LSNEzTJgrmnUWku
Malware Config
Extracted
remcos
RemoteHost
167.114.189.33:2404
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-7ZDF66
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4388 set thread context of 1260 4388 $R4S8Q5B.exe 80 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2580 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 4388 $R4S8Q5B.exe 5036 powershell.exe 3228 powershell.exe 4388 $R4S8Q5B.exe 5036 powershell.exe 3228 powershell.exe 3228 powershell.exe 5036 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4388 $R4S8Q5B.exe Token: SeDebugPrivilege 5036 powershell.exe Token: SeDebugPrivilege 3228 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1260 $R4S8Q5B.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4388 wrote to memory of 5036 4388 $R4S8Q5B.exe 74 PID 4388 wrote to memory of 5036 4388 $R4S8Q5B.exe 74 PID 4388 wrote to memory of 5036 4388 $R4S8Q5B.exe 74 PID 4388 wrote to memory of 3228 4388 $R4S8Q5B.exe 76 PID 4388 wrote to memory of 3228 4388 $R4S8Q5B.exe 76 PID 4388 wrote to memory of 3228 4388 $R4S8Q5B.exe 76 PID 4388 wrote to memory of 2580 4388 $R4S8Q5B.exe 77 PID 4388 wrote to memory of 2580 4388 $R4S8Q5B.exe 77 PID 4388 wrote to memory of 2580 4388 $R4S8Q5B.exe 77 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80 PID 4388 wrote to memory of 1260 4388 $R4S8Q5B.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5036
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bIURQhWY.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3228
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bIURQhWY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8E9F.tmp"2⤵
- Creates scheduled task(s)
PID:2580
-
-
C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"2⤵
- Suspicious use of SetWindowsHookEx
PID:1260
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD5f8dcb938a9d36fbaec9be8426584c362
SHA1a24c86d0913c708d6ae1959b23032ba0acd85e5c
SHA25608ff3d02a743cf2dd1f48f72514bb3bda2c2eeb5bb4d09f4ebf3de524f427010
SHA512486743c127a1e9c2946cf1816534b99c24c9a2c67aa4851f88a19a49ecdc1498a1022ffaf915811193b117840e9c200c1c085c36def543101aa44dfe8b68728c
-
Filesize
18KB
MD57ca36e26421ffe6138095383a6aadcb7
SHA1e2478d076ee52c0d59da9b89b178e44d3e798798
SHA256b96979181fb7d40f38dd68c72d122927ace2107a68ce45623263e2c805ee821c
SHA512c44e4e556a8c599939e2832a0200b137a490ee16bc37d78f7612f6248656a95b356b04aa731f1ac001ecfe3bad5433278e1cbe65ce391e773c63a1ddcbb2a184
-
Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
-
Filesize
1KB
MD5be0395e794c3c727954bbd74e5f92b8c
SHA1930f18d2c5d78ad4a5d47a0f38b6a45b5c4034d6
SHA256d6e03acaf2a82e97c73ec7c77d8b89284e3255f4b5468bd12dab0772ac011b6a
SHA512a46fffc2a27be0e16f13f9bb2a0047ca3acb6ba9d0dae52e851d7939a82c1b9cfb2d42ac74a597fe46e877fef342c9ae11585d7fccafad2cee7d155f6fafa9f6