Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17/09/2024, 21:37
Behavioral task
behavioral1
Sample
Solara3.0.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
Solara3.0.exe
Resource
win11-20240802-en
General
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Target
Solara3.0.exe
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Size
469KB
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MD5
78cc68b05b96757337bd5cf262c00b7a
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SHA1
f3ecae5e0edbf728092e49f28609610c3fefec46
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SHA256
5cadbdb3c936e6e75c4314aa7c9b815f3507135957bac00dc95ba5a5a61abcb8
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SHA512
b1fa4d3621adeb59934f9c89c066510d6b04d823c23180922222e6a68796515558af763c99ca5ca8d4467896dd6546aabb3d4d682e69f53dabeb49cfa69a2b93
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SSDEEP
12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSTn9:uiLJbpI7I2WhQqZ7T9
Malware Config
Extracted
remcos
RemoteHost
accessories-retrieve.gl.at.ply.gg:13970
192.168.1.56:13970
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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
Solara2.exe
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copy_folder
Health
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delete_file
true
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hide_file
true
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hide_keylog_file
true
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install_flag
true
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install_path
%WinDir%\System32
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keylog_crypt
true
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
filer32
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keylog_path
%WinDir%\System32
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mouse_option
false
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mutex
Rmc-VK27G6
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screenshot_crypt
true
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screenshot_flag
true
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screenshot_folder
Screenshots
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screenshot_path
%WinDir%\System32
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screenshot_time
10
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startup_value
WindowsHealth
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe -
Adds policy Run key to start application 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara3.0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run Solara2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara2.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run Solara3.0.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation Solara3.0.exe Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation WScript.exe -
Deletes itself 1 IoCs
pid Process 468 WScript.exe -
Executes dropped EXE 1 IoCs
pid Process 4772 Solara2.exe -
Adds Run key to start application 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara3.0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara3.0.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" Solara2.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHealth = "\"C:\\Windows\\SysWOW64\\Health\\Solara2.exe\"" iexplore.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\Health\Solara2.exe Solara3.0.exe File opened for modification C:\Windows\SysWOW64\Health\Solara2.exe Solara3.0.exe File opened for modification C:\Windows\SysWOW64\Health Solara3.0.exe File created C:\Windows\SysWOW64\Screenshots\time_20240917_213756.dat iexplore.exe File opened for modification C:\Windows\SysWOW64\filer32\logs.dat iexplore.exe File created C:\Windows\SysWOW64\filer32\logs.dat iexplore.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\638212528946203815.png" iexplore.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4772 set thread context of 3972 4772 Solara2.exe 90 PID 3972 set thread context of 2832 3972 iexplore.exe 97 -
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 11 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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iexplore.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Solara3.0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe 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 Solara2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings Solara3.0.exe -
Modifies registry key 1 TTPs 3 IoCs
pid Process 3112 reg.exe 4856 reg.exe 392 reg.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3972 iexplore.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4772 Solara2.exe 3972 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3972 iexplore.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3972 iexplore.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3972 iexplore.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2904 wrote to memory of 4744 2904 Solara3.0.exe 82 PID 2904 wrote to memory of 4744 2904 Solara3.0.exe 82 PID 2904 wrote to memory of 4744 2904 Solara3.0.exe 82 PID 4744 wrote to memory of 3112 4744 cmd.exe 84 PID 4744 wrote to memory of 3112 4744 cmd.exe 84 PID 4744 wrote to memory of 3112 4744 cmd.exe 84 PID 2904 wrote to memory of 468 2904 Solara3.0.exe 85 PID 2904 wrote to memory of 468 2904 Solara3.0.exe 85 PID 2904 wrote to memory of 468 2904 Solara3.0.exe 85 PID 468 wrote to memory of 1900 468 WScript.exe 86 PID 468 wrote to memory of 1900 468 WScript.exe 86 PID 468 wrote to memory of 1900 468 WScript.exe 86 PID 1900 wrote to memory of 4772 1900 cmd.exe 88 PID 1900 wrote to memory of 4772 1900 cmd.exe 88 PID 1900 wrote to memory of 4772 1900 cmd.exe 88 PID 4772 wrote to memory of 2152 4772 Solara2.exe 89 PID 4772 wrote to memory of 2152 4772 Solara2.exe 89 PID 4772 wrote to memory of 2152 4772 Solara2.exe 89 PID 4772 wrote to memory of 3972 4772 Solara2.exe 90 PID 4772 wrote to memory of 3972 4772 Solara2.exe 90 PID 4772 wrote to memory of 3972 4772 Solara2.exe 90 PID 4772 wrote to memory of 3972 4772 Solara2.exe 90 PID 2152 wrote to memory of 4856 2152 cmd.exe 92 PID 2152 wrote to memory of 4856 2152 cmd.exe 92 PID 2152 wrote to memory of 4856 2152 cmd.exe 92 PID 3972 wrote to memory of 1772 3972 iexplore.exe 93 PID 3972 wrote to memory of 1772 3972 iexplore.exe 93 PID 3972 wrote to memory of 1772 3972 iexplore.exe 93 PID 1772 wrote to memory of 392 1772 cmd.exe 96 PID 1772 wrote to memory of 392 1772 cmd.exe 96 PID 1772 wrote to memory of 392 1772 cmd.exe 96 PID 3972 wrote to memory of 2832 3972 iexplore.exe 97 PID 3972 wrote to memory of 2832 3972 iexplore.exe 97 PID 3972 wrote to memory of 2832 3972 iexplore.exe 97 PID 3972 wrote to memory of 2832 3972 iexplore.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\Solara3.0.exe"C:\Users\Admin\AppData\Local\Temp\Solara3.0.exe"1⤵
- Adds policy Run key to start application
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744 -
C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f3⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:3112
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"2⤵
- Checks computer location settings
- Deletes itself
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:468 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Windows\SysWOW64\Health\Solara2.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Windows\SysWOW64\Health\Solara2.exeC:\Windows\SysWOW64\Health\Solara2.exe4⤵
- Adds policy Run key to start application
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4772 -
C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f6⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:4856
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\??\c:\program files (x86)\internet explorer\iexplore.exe"c:\program files (x86)\internet explorer\iexplore.exe"5⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f6⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f7⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:392
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C:\Windows\SysWOW64\svchost.exesvchost.exe6⤵PID:2832
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
5Replay Monitor
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Downloads
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Filesize
32KB
MD54baefc9083a6e68e1cec28edaf5c32dc
SHA1018e647235d38003fe446d5cc0fcd4ad54d68b7e
SHA256437d48501551725b3e13c33f0a2fa0cf2b3b6c766f8570ef587e70e083a75b4e
SHA51283704d109a2b03ed75cde5c33628baec0f93dba03a2b6cd449dc2876916dabf50d22e867f0b6020787fc1dd8ab7de9326d68e6091881fd3bb4b03a30b63308ba
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Filesize
528B
MD59fdc1fab4ac329ed44834a7107e01586
SHA131e1fdb32b2362bd4c6c763447921b79ff8356e7
SHA256e451e71bcf8cfa2f5d0587427cc1d8de37f0a463504dd6c95be3fde0a70bfb94
SHA5123b4d7958ec9757cd4a0e5cea025f0fb9419c058917d4772df06b271de5c48a544cf00f49dbf5d05ad7578ee97267ea4da5f83bcee223e8c01db86996fa9c3df6
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Filesize
469KB
MD578cc68b05b96757337bd5cf262c00b7a
SHA1f3ecae5e0edbf728092e49f28609610c3fefec46
SHA2565cadbdb3c936e6e75c4314aa7c9b815f3507135957bac00dc95ba5a5a61abcb8
SHA512b1fa4d3621adeb59934f9c89c066510d6b04d823c23180922222e6a68796515558af763c99ca5ca8d4467896dd6546aabb3d4d682e69f53dabeb49cfa69a2b93
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Filesize
346B
MD5f6310a0e4119a87850471a2ff1f94d69
SHA123c0e3492f425bcf865ce7efd30f2adb12ad3373
SHA256a6cb3c98db2fbd8d94aae644cebcb4d5822123d874400e5bc04ab142971f6952
SHA51232ebf24caa9b1a8fc6d9c10788a08dc92b2f8e2d0eddb165905f35acb3448e100b5c6efa41aa7da057c88c7f602abff175ffb3e2ab05b93d0577b1e5d1e52a98