Analysis
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max time kernel
149s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
24-11-2024 07:09
Static task
static1
Behavioral task
behavioral1
Sample
Bank Fund Transfer-589237.scr.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Bank Fund Transfer-589237.scr.exe
Resource
win10v2004-20241007-en
General
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Target
Bank Fund Transfer-589237.scr.exe
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Size
1.2MB
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MD5
552044ce92b78bf4b68d242c2c380afe
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SHA1
2ef4efa20f4fd0d05d8f49ccb22c9afeada93a62
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SHA256
cac29565b48f92e8c7a43b7dcca13294bae02890c26df75ae5e5ee31a464e4f3
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SHA512
4dc5ef0fb4b80a81015f4507422a67309074ea01787c9ed0d18c850a1d98ea1e3a444993a1d08428331e2ff044390c873d20c31ffbae049e325a82b64d5a3967
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SSDEEP
24576:6YdgfvzmIzxWOwxzCJYC3PPoKb0Eci5ihjJVxw9bYOd+8:qzmmWXRCaePPjb0Eci5ih7xw9bYI
Malware Config
Extracted
remcos
RemoteHost
212.162.149.226:9285
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audio_folder
MicRecords
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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
remcos.exe
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copy_folder
AppUpdate
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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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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-VCJ8ZS
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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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startup_value
AppUpdate
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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 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 2812 powershell.exe 748 powershell.exe 2868 powershell.exe 2800 powershell.exe -
Executes dropped EXE 3 IoCs
Processes:
remcos.exeremcos.exeremcos.exepid process 1712 remcos.exe 448 remcos.exe 2968 remcos.exe -
Loads dropped DLL 1 IoCs
Processes:
cmd.exepid process 1720 cmd.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
Bank Fund Transfer-589237.scr.exeremcos.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" Bank Fund Transfer-589237.scr.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" Bank Fund Transfer-589237.scr.exe Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" remcos.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" remcos.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Bank Fund Transfer-589237.scr.exeremcos.exedescription pid process target process PID 2536 set thread context of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 1712 set thread context of 2968 1712 remcos.exe remcos.exe -
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 12 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
powershell.exeschtasks.exeBank Fund Transfer-589237.scr.execmd.exeremcos.exepowershell.exeschtasks.exeBank Fund Transfer-589237.scr.exeWScript.exepowershell.exeremcos.exepowershell.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bank Fund Transfer-589237.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bank Fund Transfer-589237.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 2840 schtasks.exe 644 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
Bank Fund Transfer-589237.scr.exepowershell.exepowershell.exeremcos.exepowershell.exepowershell.exepid process 2536 Bank Fund Transfer-589237.scr.exe 2536 Bank Fund Transfer-589237.scr.exe 2536 Bank Fund Transfer-589237.scr.exe 2536 Bank Fund Transfer-589237.scr.exe 2868 powershell.exe 748 powershell.exe 1712 remcos.exe 1712 remcos.exe 1712 remcos.exe 2800 powershell.exe 2812 powershell.exe 1712 remcos.exe 1712 remcos.exe 1712 remcos.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
Bank Fund Transfer-589237.scr.exepowershell.exepowershell.exeremcos.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2536 Bank Fund Transfer-589237.scr.exe Token: SeDebugPrivilege 2868 powershell.exe Token: SeDebugPrivilege 748 powershell.exe Token: SeDebugPrivilege 1712 remcos.exe Token: SeDebugPrivilege 2800 powershell.exe Token: SeDebugPrivilege 2812 powershell.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
Bank Fund Transfer-589237.scr.exeBank Fund Transfer-589237.scr.exeWScript.execmd.exeremcos.exedescription pid process target process PID 2536 wrote to memory of 748 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 748 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 748 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 748 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 2868 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 2868 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 2868 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 2868 2536 Bank Fund Transfer-589237.scr.exe powershell.exe PID 2536 wrote to memory of 2840 2536 Bank Fund Transfer-589237.scr.exe schtasks.exe PID 2536 wrote to memory of 2840 2536 Bank Fund Transfer-589237.scr.exe schtasks.exe PID 2536 wrote to memory of 2840 2536 Bank Fund Transfer-589237.scr.exe schtasks.exe PID 2536 wrote to memory of 2840 2536 Bank Fund Transfer-589237.scr.exe schtasks.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2536 wrote to memory of 2756 2536 Bank Fund Transfer-589237.scr.exe Bank Fund Transfer-589237.scr.exe PID 2756 wrote to memory of 676 2756 Bank Fund Transfer-589237.scr.exe WScript.exe PID 2756 wrote to memory of 676 2756 Bank Fund Transfer-589237.scr.exe WScript.exe PID 2756 wrote to memory of 676 2756 Bank Fund Transfer-589237.scr.exe WScript.exe PID 2756 wrote to memory of 676 2756 Bank Fund Transfer-589237.scr.exe WScript.exe PID 676 wrote to memory of 1720 676 WScript.exe cmd.exe PID 676 wrote to memory of 1720 676 WScript.exe cmd.exe PID 676 wrote to memory of 1720 676 WScript.exe cmd.exe PID 676 wrote to memory of 1720 676 WScript.exe cmd.exe PID 1720 wrote to memory of 1712 1720 cmd.exe remcos.exe PID 1720 wrote to memory of 1712 1720 cmd.exe remcos.exe PID 1720 wrote to memory of 1712 1720 cmd.exe remcos.exe PID 1720 wrote to memory of 1712 1720 cmd.exe remcos.exe PID 1712 wrote to memory of 2800 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2800 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2800 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2800 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2812 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2812 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2812 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 2812 1712 remcos.exe powershell.exe PID 1712 wrote to memory of 644 1712 remcos.exe schtasks.exe PID 1712 wrote to memory of 644 1712 remcos.exe schtasks.exe PID 1712 wrote to memory of 644 1712 remcos.exe schtasks.exe PID 1712 wrote to memory of 644 1712 remcos.exe schtasks.exe PID 1712 wrote to memory of 448 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 448 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 448 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 448 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe PID 1712 wrote to memory of 2968 1712 remcos.exe remcos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr.exe"C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
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\Bank Fund Transfer-589237.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:748
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uCItbEGgKu.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2868
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uCItbEGgKu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp17A6.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2840
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C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr.exe"C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:676 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\AppUpdate\remcos.exe"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\ProgramData\AppUpdate\remcos.exeC:\ProgramData\AppUpdate\remcos.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\AppUpdate\remcos.exe"6⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2800
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uCItbEGgKu.exe"6⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2812
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uCItbEGgKu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80E3.tmp"6⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:644
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C:\ProgramData\AppUpdate\remcos.exe"C:\ProgramData\AppUpdate\remcos.exe"6⤵
- Executes dropped EXE
PID:448
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C:\ProgramData\AppUpdate\remcos.exe"C:\ProgramData\AppUpdate\remcos.exe"6⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2968
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.2MB
MD5552044ce92b78bf4b68d242c2c380afe
SHA12ef4efa20f4fd0d05d8f49ccb22c9afeada93a62
SHA256cac29565b48f92e8c7a43b7dcca13294bae02890c26df75ae5e5ee31a464e4f3
SHA5124dc5ef0fb4b80a81015f4507422a67309074ea01787c9ed0d18c850a1d98ea1e3a444993a1d08428331e2ff044390c873d20c31ffbae049e325a82b64d5a3967
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Filesize
392B
MD5046708368578d720d91fb9ceecec742e
SHA11dc732f67f48a1d5694f4cf14a8d279dbd1d6ee6
SHA25604f4edc28e97a16f93cf7acac864aba17cc467282550ae61baac719262be6f5e
SHA5129106f645ee74c9e061fcb396a00d706512d41054a356125f26a10d42390d8f0d3ea3dd785393bf5de358b62464ec3c0f7d2e27411e87bb408581f820c427e7f0
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Filesize
1KB
MD5c7efb1ec7d931b19bd57c265f3c3cb4e
SHA183e90e4593fa5ff744b28435def9a998ed63336f
SHA2561c5a3cdd171902141ce19baa95e30453ea61d597e0bfd25fd4a9824caf0c3935
SHA5125f281aba6f4512b65e5e161a2858725fe52a50cd1d68a382b5d357a9aab1e8fb2122b4a34931a1e4fb07ffcaac67c59a686ef5d06d99cb2fc9618306396bea5c
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\2RQWSFA92TUNUXERALND.temp
Filesize7KB
MD5372ee299eaa42d05d1c2fb427188e6e7
SHA14a94dc8f7041f16b8dcebcc2da60b7fd1ebab0dd
SHA2566f04534c509a544eaa5616dae1603cab9493f34bf39829c866d778c96a25704c
SHA512c8cbed410a656bab2ab02d61477ef8348e27943913fed36fff3c6d51a748c97e4fe23601afc9be40a497cfcfb0178152297ac38d47d92de3cf3fb2f4e2fa0d0f
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD555db791b5aa5da24a1e28a00fe14c936
SHA16944731bbf3065eee1f6b40ed41569cd2aca8c2e
SHA25621fe71c9afd23f0bc8b6dda17cef706e9a023cb6fbe7167b6123b1af3d88ea0a
SHA51280a5fd7a7bd22c04b1662caacd0aa5e3fcd18a1f1f8077f583b59e8b450e9e1fd1328eb7dcd99e3dda822db2cbfe3ef9d8c9f8ed83524d1c4594be0748d6f6c4