Analysis
-
max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-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
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3635043082-2972811465-3176142135-1000\Control Panel\International\Geo\Nation $R4S8Q5B.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5116 set thread context of 4340 5116 $R4S8Q5B.exe 111 -
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 1116 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 17 IoCs
pid Process 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 5116 $R4S8Q5B.exe 1340 powershell.exe 5116 $R4S8Q5B.exe 3116 powershell.exe 1340 powershell.exe 3116 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 5116 $R4S8Q5B.exe Token: SeDebugPrivilege 3116 powershell.exe Token: SeDebugPrivilege 1340 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4340 $R4S8Q5B.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 5116 wrote to memory of 1340 5116 $R4S8Q5B.exe 105 PID 5116 wrote to memory of 1340 5116 $R4S8Q5B.exe 105 PID 5116 wrote to memory of 1340 5116 $R4S8Q5B.exe 105 PID 5116 wrote to memory of 3116 5116 $R4S8Q5B.exe 108 PID 5116 wrote to memory of 3116 5116 $R4S8Q5B.exe 108 PID 5116 wrote to memory of 3116 5116 $R4S8Q5B.exe 108 PID 5116 wrote to memory of 1116 5116 $R4S8Q5B.exe 109 PID 5116 wrote to memory of 1116 5116 $R4S8Q5B.exe 109 PID 5116 wrote to memory of 1116 5116 $R4S8Q5B.exe 109 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111 PID 5116 wrote to memory of 4340 5116 $R4S8Q5B.exe 111
Processes
-
C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5116 -
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:1340
-
-
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:3116
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bIURQhWY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97C.tmp"2⤵
- Creates scheduled task(s)
PID:1116
-
-
C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"C:\Users\Admin\AppData\Local\Temp\$R4S8Q5B.exe"2⤵
- Suspicious use of SetWindowsHookEx
PID:4340
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD58d4c21d83f55b113758dcebf96ff26ee
SHA196dbddb6d6ff72862517b174f5c087870d0ec054
SHA2566fdf5428a7683f80993d346da723ed64fb8fcdf2ba47bb2f4f1819eb2bf1518e
SHA512297ac171d063c27d459d29ff108cb0cc86a830243a4c1ce5816ee6abed6e0ea3ebb0802572ac517cfe7274491cbb1a4ff62a02e55a16c7faafb7119704c2c6ab
-
Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
-
Filesize
18KB
MD5f031bf37ccb3723433ed6afb4a256777
SHA180c7ea0375aa5145e16857a46b62b8ba967bd32c
SHA2569218f9b599264ab66aed9790f160f6e6bf7e0a58230116e145dea161b19b792a
SHA512dbbf11859faa5399b75979204c08602587c819eabea5a18c6f4b23d04c96006ce2241529c6cf1ab312dfa043152b8a964b43c1fcc454690432812ec47cc7f870
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD5b3b7c03e9c0174e18c53b7d3299a0f69
SHA1e47c9453b6547773b7d71a37743e91cd7a44adb8
SHA256e0b90f4eea58d7df788b7e2d0bf8f9843e13c0309282148be076ce27adb82367
SHA51224c7dac772f7d12fef97e7306a70ecb32a624296566276d34f87725937fd021564b488944c49c643611fa2b9e51a6b3b10033c6cc06765dd63404deebd6924d1