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Analysis
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max time kernel
120s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07/09/2024, 09:53
Behavioral task
behavioral1
Sample
dabff55fbaf499428753fad48a5f76d0N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
dabff55fbaf499428753fad48a5f76d0N.exe
Resource
win10v2004-20240802-en
General
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Target
dabff55fbaf499428753fad48a5f76d0N.exe
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Size
2.5MB
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MD5
dabff55fbaf499428753fad48a5f76d0
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SHA1
d2f665fca08fa2a191eec5ab8c750a71a77a3854
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SHA256
8650cc32a68d474938c678d1e2c15b56cd3c7553d17b82cf7fa384b9b2cfbd14
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SHA512
8c32dcd2d0c2b4ee604f0e9b09b3ca2610eb98de60ce80f9091bb6b30467610ee833ab9ab48a33841a0206182b84a63b04084ea97a535c617f14437e713656ce
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SSDEEP
49152:hxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxF:hxx9NUFkQx753uWuCyyxF
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ spoolsv.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ dabff55fbaf499428753fad48a5f76d0N.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ spoolsv.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ svchost.exe -
Checks BIOS information in registry 2 TTPs 10 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion dabff55fbaf499428753fad48a5f76d0N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion dabff55fbaf499428753fad48a5f76d0N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion spoolsv.exe -
Executes dropped EXE 4 IoCs
pid Process 2492 explorer.exe 2248 spoolsv.exe 2668 svchost.exe 2684 spoolsv.exe -
Loads dropped DLL 4 IoCs
pid Process 1852 dabff55fbaf499428753fad48a5f76d0N.exe 2492 explorer.exe 2248 spoolsv.exe 2668 svchost.exe -
resource yara_rule behavioral1/memory/1852-0-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/files/0x000b00000001739b-7.dat themida behavioral1/memory/2492-12-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/1852-11-0x0000000003660000-0x0000000003C6E000-memory.dmp themida behavioral1/memory/2492-21-0x0000000003800000-0x0000000003E0E000-memory.dmp themida behavioral1/files/0x00080000000173f6-19.dat themida behavioral1/memory/2248-24-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/files/0x000800000001746c-31.dat themida behavioral1/memory/2668-36-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/1852-42-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2684-45-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2684-50-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2248-52-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/1852-53-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2492-54-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2668-55-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2492-56-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2492-64-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2668-67-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2492-68-0x0000000000400000-0x0000000000A0E000-memory.dmp themida -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" svchost.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA dabff55fbaf499428753fad48a5f76d0N.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorer.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA spoolsv.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA spoolsv.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\explorer.exe svchost.exe File opened for modification C:\Windows\SysWOW64\explorer.exe explorer.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 1852 dabff55fbaf499428753fad48a5f76d0N.exe 2492 explorer.exe 2248 spoolsv.exe 2668 svchost.exe 2684 spoolsv.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification \??\c:\windows\resources\themes\explorer.exe dabff55fbaf499428753fad48a5f76d0N.exe File opened for modification \??\c:\windows\resources\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\resources\svchost.exe spoolsv.exe File opened for modification C:\Windows\Resources\tjud.exe explorer.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dabff55fbaf499428753fad48a5f76d0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe -
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 1556 schtasks.exe 1996 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2668 svchost.exe 2492 explorer.exe 2668 svchost.exe 2668 svchost.exe 2492 explorer.exe 2492 explorer.exe 2492 explorer.exe 2668 svchost.exe 2492 explorer.exe 2492 explorer.exe 2668 svchost.exe 2492 explorer.exe 2668 svchost.exe 2492 explorer.exe 2668 svchost.exe 2492 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2492 explorer.exe 2668 svchost.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1852 dabff55fbaf499428753fad48a5f76d0N.exe 1852 dabff55fbaf499428753fad48a5f76d0N.exe 2492 explorer.exe 2492 explorer.exe 2248 spoolsv.exe 2248 spoolsv.exe 2668 svchost.exe 2668 svchost.exe 2684 spoolsv.exe 2684 spoolsv.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1852 wrote to memory of 2492 1852 dabff55fbaf499428753fad48a5f76d0N.exe 31 PID 1852 wrote to memory of 2492 1852 dabff55fbaf499428753fad48a5f76d0N.exe 31 PID 1852 wrote to memory of 2492 1852 dabff55fbaf499428753fad48a5f76d0N.exe 31 PID 1852 wrote to memory of 2492 1852 dabff55fbaf499428753fad48a5f76d0N.exe 31 PID 2492 wrote to memory of 2248 2492 explorer.exe 32 PID 2492 wrote to memory of 2248 2492 explorer.exe 32 PID 2492 wrote to memory of 2248 2492 explorer.exe 32 PID 2492 wrote to memory of 2248 2492 explorer.exe 32 PID 2248 wrote to memory of 2668 2248 spoolsv.exe 33 PID 2248 wrote to memory of 2668 2248 spoolsv.exe 33 PID 2248 wrote to memory of 2668 2248 spoolsv.exe 33 PID 2248 wrote to memory of 2668 2248 spoolsv.exe 33 PID 2668 wrote to memory of 2684 2668 svchost.exe 34 PID 2668 wrote to memory of 2684 2668 svchost.exe 34 PID 2668 wrote to memory of 2684 2668 svchost.exe 34 PID 2668 wrote to memory of 2684 2668 svchost.exe 34 PID 2492 wrote to memory of 2916 2492 explorer.exe 35 PID 2492 wrote to memory of 2916 2492 explorer.exe 35 PID 2492 wrote to memory of 2916 2492 explorer.exe 35 PID 2492 wrote to memory of 2916 2492 explorer.exe 35 PID 2668 wrote to memory of 1556 2668 svchost.exe 36 PID 2668 wrote to memory of 1556 2668 svchost.exe 36 PID 2668 wrote to memory of 1556 2668 svchost.exe 36 PID 2668 wrote to memory of 1556 2668 svchost.exe 36 PID 2668 wrote to memory of 1996 2668 svchost.exe 39 PID 2668 wrote to memory of 1996 2668 svchost.exe 39 PID 2668 wrote to memory of 1996 2668 svchost.exe 39 PID 2668 wrote to memory of 1996 2668 svchost.exe 39
Processes
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C:\Users\Admin\AppData\Local\Temp\dabff55fbaf499428753fad48a5f76d0N.exe"C:\Users\Admin\AppData\Local\Temp\dabff55fbaf499428753fad48a5f76d0N.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852 -
\??\c:\windows\resources\themes\explorer.exec:\windows\resources\themes\explorer.exe2⤵
- Modifies visiblity of hidden/system files in Explorer
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2492 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe SE3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2248 -
\??\c:\windows\resources\svchost.exec:\windows\resources\svchost.exe4⤵
- Modifies visiblity of hidden/system files in Explorer
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe PR5⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2684
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 09:55 /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1556
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 09:56 /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1996
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C:\Windows\Explorer.exeC:\Windows\Explorer.exe3⤵PID:2916
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Network
MITRE ATT&CK Enterprise v15
Persistence
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
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Virtualization/Sandbox Evasion
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.5MB
MD55a377cae3fc16f55fdc5821651b48ebb
SHA10d0f692df3e11064cfca0d288fbce6e9dcb981b9
SHA2566d10e847b5d481a94421bc92af05ef9dda0b8f7260afaa96683182bfd61ef993
SHA512c6951eca2eb5061040cc77e0c09ea1dc1c98b3d2d4da8e3efee419c6bae90a82397480d3dba7d509669593c1e3a1388d21cfecd4d4cdb5fb6b3fe5da5f8eaa32
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Filesize
2.5MB
MD529c8c2e2029b8c6837f5fb0754f34b90
SHA1bac419b39b5647be39fea82e3124d0e102e621f2
SHA256586a713a2d945a67d75f4ac1f70e83196c1d17d9a94ea4c77b0923e502ba51a0
SHA51293200d3ea1b7364cc32258e7b6f8bf1661cd8d93eb05ab706fae67866a5dd3efd77feda7ca48e1c712e4d22dd1b3cc4179c6bd32a9af508a7d932b420b91933a
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Filesize
2.5MB
MD585ee185221bbffdff73199428048186f
SHA156a8377b9b6e11b73718d817e6bfeefc60c7dbc4
SHA256142ed85fa276a8b4d8c4e82eef0456dcc7e767f0643e559db292bd4349db35a7
SHA512ea287a78bd701b2665c98c2f64dca8e51afec4a887a440347b2a0f787c0ac49ca413d6b8693e86d47e3ab4d898ccf8c8889691154ab54c75331f8fa6d2bd485b