Analysis
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max time kernel
149s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2024, 04:12
Static task
static1
Behavioral task
behavioral1
Sample
e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe
Resource
win7-20240903-en
General
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Target
e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe
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Size
959KB
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MD5
b074e2458b987efec69536a58316d5a6
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SHA1
ffebefa18462d47fc8b82abc9069c9fdd6079da9
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SHA256
e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32
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SHA512
1f76d7ae0558962781b913b765ff6b92b5f03aa511c6be2f206ff17c361052d4b34a37d46e49447a0860586474c3bc656ed34d9d094b605d06a6ebfbcc0a2422
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SSDEEP
24576:YQm35eXO2xQ7nEP9FsGu0ftQbg665Xp3GuD+XjK:jej2ynElFsGu0fsgD5XpTqXj
Malware Config
Extracted
remcos
Document
45.138.48.25:3333
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
WinUpdate.exe
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copy_folder
WinUpdate
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
true
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install_path
%Temp%
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keylog_crypt
false
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keylog_file
WinUpdat.dat
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keylog_flag
false
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keylog_folder
WinUpdat
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mouse_option
false
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mutex
Rmc-E10MWO
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos family
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 5028 powershell.exe 4976 powershell.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation WinUpdate.exe -
Executes dropped EXE 2 IoCs
pid Process 4092 WinUpdate.exe 4468 WinUpdate.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-E10MWO = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinUpdate\\WinUpdate.exe\"" e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-E10MWO = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinUpdate\\WinUpdate.exe\"" WinUpdate.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2808 set thread context of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 4092 set thread context of 4468 4092 WinUpdate.exe 107 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WinUpdate.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4976 powershell.exe 4976 powershell.exe 5028 powershell.exe 5028 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4976 powershell.exe Token: SeDebugPrivilege 5028 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4468 WinUpdate.exe -
Suspicious use of WriteProcessMemory 29 IoCs
description pid Process procid_target PID 2808 wrote to memory of 4976 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 98 PID 2808 wrote to memory of 4976 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 98 PID 2808 wrote to memory of 4976 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 98 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 2808 wrote to memory of 1280 2808 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 100 PID 1280 wrote to memory of 4092 1280 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 101 PID 1280 wrote to memory of 4092 1280 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 101 PID 1280 wrote to memory of 4092 1280 e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe 101 PID 4092 wrote to memory of 5028 4092 WinUpdate.exe 105 PID 4092 wrote to memory of 5028 4092 WinUpdate.exe 105 PID 4092 wrote to memory of 5028 4092 WinUpdate.exe 105 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107 PID 4092 wrote to memory of 4468 4092 WinUpdate.exe 107
Processes
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C:\Users\Admin\AppData\Local\Temp\e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe"C:\Users\Admin\AppData\Local\Temp\e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808 -
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\e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4976
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C:\Users\Admin\AppData\Local\Temp\e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe"C:\Users\Admin\AppData\Local\Temp\e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Users\Admin\AppData\Local\Temp\WinUpdate\WinUpdate.exe"C:\Users\Admin\AppData\Local\Temp\WinUpdate\WinUpdate.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4092 -
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\WinUpdate\WinUpdate.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5028
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C:\Users\Admin\AppData\Local\Temp\WinUpdate\WinUpdate.exe"C:\Users\Admin\AppData\Local\Temp\WinUpdate\WinUpdate.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:4468
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD51747bb55250437cee3be6aafe5bd338b
SHA1d89aa4f3e489c971188b09b3bb75736a98c79fdb
SHA256aa5933d3a4816cbbe73cb759cf6dcb97dcc0d20b4159d0fb01ef51471f1c31e1
SHA5124fc4c595c988c7d2ac10400330a5ee0dce67322d7d0bea189c11d7d8f358254336e5593b271c7f63d89fa3f2e953f125f4d121c2a1cdd211aec0fde492206001
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Filesize
959KB
MD5b074e2458b987efec69536a58316d5a6
SHA1ffebefa18462d47fc8b82abc9069c9fdd6079da9
SHA256e744e0aa890a2d9b5e6eed8403cb16f6098baee4a0529b1fabc0644ee4ba6b32
SHA5121f76d7ae0558962781b913b765ff6b92b5f03aa511c6be2f206ff17c361052d4b34a37d46e49447a0860586474c3bc656ed34d9d094b605d06a6ebfbcc0a2422
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82