Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 03:46
Static task
static1
Behavioral task
behavioral1
Sample
Bank Fund Transfer-589237.scr
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Bank Fund Transfer-589237.scr
Resource
win10v2004-20241007-en
General
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Target
Bank Fund Transfer-589237.scr
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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.
pid Process 1820 powershell.exe 1780 powershell.exe 768 powershell.exe 4752 powershell.exe -
Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation remcos.exe Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation Bank Fund Transfer-589237.scr Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation Bank Fund Transfer-589237.scr -
Executes dropped EXE 2 IoCs
pid Process 688 remcos.exe 3404 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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 Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" Bank Fund Transfer-589237.scr Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AppUpdate = "\"C:\\ProgramData\\AppUpdate\\remcos.exe\"" Bank Fund Transfer-589237.scr -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3232 set thread context of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 688 set thread context of 3404 688 remcos.exe 108 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bank Fund Transfer-589237.scr Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.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 remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings Bank Fund Transfer-589237.scr -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3224 schtasks.exe 3452 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 17 IoCs
pid Process 3232 Bank Fund Transfer-589237.scr 3232 Bank Fund Transfer-589237.scr 3232 Bank Fund Transfer-589237.scr 1820 powershell.exe 1780 powershell.exe 3232 Bank Fund Transfer-589237.scr 3232 Bank Fund Transfer-589237.scr 1820 powershell.exe 1780 powershell.exe 688 remcos.exe 688 remcos.exe 688 remcos.exe 4752 powershell.exe 768 powershell.exe 688 remcos.exe 768 powershell.exe 4752 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 3232 Bank Fund Transfer-589237.scr Token: SeDebugPrivilege 1820 powershell.exe Token: SeDebugPrivilege 1780 powershell.exe Token: SeDebugPrivilege 688 remcos.exe Token: SeDebugPrivilege 4752 powershell.exe Token: SeDebugPrivilege 768 powershell.exe -
Suspicious use of WriteProcessMemory 51 IoCs
description pid Process procid_target PID 3232 wrote to memory of 1820 3232 Bank Fund Transfer-589237.scr 89 PID 3232 wrote to memory of 1820 3232 Bank Fund Transfer-589237.scr 89 PID 3232 wrote to memory of 1820 3232 Bank Fund Transfer-589237.scr 89 PID 3232 wrote to memory of 1780 3232 Bank Fund Transfer-589237.scr 91 PID 3232 wrote to memory of 1780 3232 Bank Fund Transfer-589237.scr 91 PID 3232 wrote to memory of 1780 3232 Bank Fund Transfer-589237.scr 91 PID 3232 wrote to memory of 3224 3232 Bank Fund Transfer-589237.scr 93 PID 3232 wrote to memory of 3224 3232 Bank Fund Transfer-589237.scr 93 PID 3232 wrote to memory of 3224 3232 Bank Fund Transfer-589237.scr 93 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 3232 wrote to memory of 1896 3232 Bank Fund Transfer-589237.scr 95 PID 1896 wrote to memory of 1576 1896 Bank Fund Transfer-589237.scr 96 PID 1896 wrote to memory of 1576 1896 Bank Fund Transfer-589237.scr 96 PID 1896 wrote to memory of 1576 1896 Bank Fund Transfer-589237.scr 96 PID 1576 wrote to memory of 4232 1576 WScript.exe 97 PID 1576 wrote to memory of 4232 1576 WScript.exe 97 PID 1576 wrote to memory of 4232 1576 WScript.exe 97 PID 4232 wrote to memory of 688 4232 cmd.exe 100 PID 4232 wrote to memory of 688 4232 cmd.exe 100 PID 4232 wrote to memory of 688 4232 cmd.exe 100 PID 688 wrote to memory of 768 688 remcos.exe 102 PID 688 wrote to memory of 768 688 remcos.exe 102 PID 688 wrote to memory of 768 688 remcos.exe 102 PID 688 wrote to memory of 4752 688 remcos.exe 104 PID 688 wrote to memory of 4752 688 remcos.exe 104 PID 688 wrote to memory of 4752 688 remcos.exe 104 PID 688 wrote to memory of 3452 688 remcos.exe 106 PID 688 wrote to memory of 3452 688 remcos.exe 106 PID 688 wrote to memory of 3452 688 remcos.exe 106 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108 PID 688 wrote to memory of 3404 688 remcos.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr"C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr" /S1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3232 -
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"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1820
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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:1780
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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\tmp887.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3224
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C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr"C:\Users\Admin\AppData\Local\Temp\Bank Fund Transfer-589237.scr"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\AppUpdate\remcos.exe"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232 -
C:\ProgramData\AppUpdate\remcos.exeC:\ProgramData\AppUpdate\remcos.exe5⤵
- Checks computer location settings
- 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:688 -
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:768
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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:4752
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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\tmp7A4C.tmp"6⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3452
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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:3404
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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
2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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Filesize
18KB
MD5afeedea80aba2f5d5a6807f18663b41e
SHA10e736963cbdecd83a3f4cbef8e85fb6be8c78019
SHA256a32cc037aac1436d2806914a0dd558a33457d0a973f8a70aa77f06fb95554027
SHA512f9c9d945c3ee79324cb88ff1782f268a9b3e390cd669df84afe9da605d69766e6bc9a2f0d15d7726e43491f8b9db696314c9ff418d495b599b44528a56c801f1
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Filesize
18KB
MD505fd59af7ef0255eac9c922176de11fe
SHA11ccb29abe181c07c8df40383744c2dd08a3a28b1
SHA2569cd29bfdbfd55577b789f8968d60e3763be7fb3c40f6054008bc15e019e631c6
SHA512469fc628946926b26e9319761143ad029432041b08fa57401800c027a80657db2d09eb6f27933df44fb9d55d61e7c2ee894efd342af014812a6be6b417abda3c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
392B
MD5046708368578d720d91fb9ceecec742e
SHA11dc732f67f48a1d5694f4cf14a8d279dbd1d6ee6
SHA25604f4edc28e97a16f93cf7acac864aba17cc467282550ae61baac719262be6f5e
SHA5129106f645ee74c9e061fcb396a00d706512d41054a356125f26a10d42390d8f0d3ea3dd785393bf5de358b62464ec3c0f7d2e27411e87bb408581f820c427e7f0
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Filesize
1KB
MD577b5aaf1606a79a7f6047b30d2e46aec
SHA1eac7a9c50f3d726d7f0e2c26e41e501d8f392c05
SHA256d4ef4f97983847f15891554c3d3e971a2be8d0903e30d515f38cc3d0ef5a17ac
SHA512d206979c95afc3657b0ae4e4f83147f530bdbdf58fc867125fce112a43f502ab229b8baffb5e3c05ef05af53af4bc8c5be4839e2a0fb9fc0374571f7bdc89d93