Analysis
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max time kernel
120s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
17-08-2024 22:07
Behavioral task
behavioral1
Sample
4c4ad3168ff823c050f984b5e2c69810N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
4c4ad3168ff823c050f984b5e2c69810N.exe
Resource
win10v2004-20240802-en
General
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Target
4c4ad3168ff823c050f984b5e2c69810N.exe
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Size
2.5MB
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MD5
4c4ad3168ff823c050f984b5e2c69810
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SHA1
5e802e2f209c9f19c2fd8b7d5094317bad4cdb29
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SHA256
d8b6e5f27f7c466653896bc2e66519e3f3c358d0e715ebdc30f132cfe01f5891
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SHA512
4477b36dbfbccc5aaa96a8bec3a159339251dbd22141e899aa4e1f7b58c8d89b7d44a52c6d1e7b38eba7ff91882cda73f8a6087df672370d2d9038de8836a237
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SSDEEP
49152:JxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxR:Jxx9NUFkQx753uWuCyyxR
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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.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__ explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ spoolsv.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ svchost.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ spoolsv.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4c4ad3168ff823c050f984b5e2c69810N.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\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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4c4ad3168ff823c050f984b5e2c69810N.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.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 spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4c4ad3168ff823c050f984b5e2c69810N.exe -
Executes dropped EXE 4 IoCs
pid Process 2884 explorer.exe 2792 spoolsv.exe 2564 svchost.exe 2732 spoolsv.exe -
Loads dropped DLL 4 IoCs
pid Process 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 2884 explorer.exe 2792 spoolsv.exe 2564 svchost.exe -
resource yara_rule behavioral1/memory/1668-0-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/files/0x0029000000016ce6-7.dat themida behavioral1/memory/2884-11-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/files/0x0008000000016d58-18.dat themida behavioral1/memory/2792-23-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/files/0x000b000000016d6c-30.dat themida behavioral1/memory/2564-37-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/1668-42-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2732-43-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2792-49-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2732-50-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/1668-52-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2884-53-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2884-55-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2564-56-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2884-66-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2564-67-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral1/memory/2884-68-0x0000000000400000-0x0000000000A0E000-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 4c4ad3168ff823c050f984b5e2c69810N.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 explorer.exe File opened for modification C:\Windows\SysWOW64\explorer.exe svchost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 2884 explorer.exe 2792 spoolsv.exe 2564 svchost.exe 2732 spoolsv.exe -
Drops file in Windows directory 4 IoCs
description ioc Process 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 File opened for modification \??\c:\windows\resources\themes\explorer.exe 4c4ad3168ff823c050f984b5e2c69810N.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 4c4ad3168ff823c050f984b5e2c69810N.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 2984 schtasks.exe 580 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2564 svchost.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2884 explorer.exe 2564 svchost.exe 2564 svchost.exe 2884 explorer.exe 2564 svchost.exe 2884 explorer.exe 2564 svchost.exe 2884 explorer.exe 2564 svchost.exe 2884 explorer.exe 2564 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2884 explorer.exe 2564 svchost.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 2884 explorer.exe 2884 explorer.exe 2792 spoolsv.exe 2792 spoolsv.exe 2564 svchost.exe 2564 svchost.exe 2732 spoolsv.exe 2732 spoolsv.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1668 wrote to memory of 2884 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 30 PID 1668 wrote to memory of 2884 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 30 PID 1668 wrote to memory of 2884 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 30 PID 1668 wrote to memory of 2884 1668 4c4ad3168ff823c050f984b5e2c69810N.exe 30 PID 2884 wrote to memory of 2792 2884 explorer.exe 31 PID 2884 wrote to memory of 2792 2884 explorer.exe 31 PID 2884 wrote to memory of 2792 2884 explorer.exe 31 PID 2884 wrote to memory of 2792 2884 explorer.exe 31 PID 2792 wrote to memory of 2564 2792 spoolsv.exe 32 PID 2792 wrote to memory of 2564 2792 spoolsv.exe 32 PID 2792 wrote to memory of 2564 2792 spoolsv.exe 32 PID 2792 wrote to memory of 2564 2792 spoolsv.exe 32 PID 2564 wrote to memory of 2732 2564 svchost.exe 33 PID 2564 wrote to memory of 2732 2564 svchost.exe 33 PID 2564 wrote to memory of 2732 2564 svchost.exe 33 PID 2564 wrote to memory of 2732 2564 svchost.exe 33 PID 2884 wrote to memory of 2604 2884 explorer.exe 34 PID 2884 wrote to memory of 2604 2884 explorer.exe 34 PID 2884 wrote to memory of 2604 2884 explorer.exe 34 PID 2884 wrote to memory of 2604 2884 explorer.exe 34 PID 2564 wrote to memory of 2984 2564 svchost.exe 35 PID 2564 wrote to memory of 2984 2564 svchost.exe 35 PID 2564 wrote to memory of 2984 2564 svchost.exe 35 PID 2564 wrote to memory of 2984 2564 svchost.exe 35 PID 2564 wrote to memory of 580 2564 svchost.exe 38 PID 2564 wrote to memory of 580 2564 svchost.exe 38 PID 2564 wrote to memory of 580 2564 svchost.exe 38 PID 2564 wrote to memory of 580 2564 svchost.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\4c4ad3168ff823c050f984b5e2c69810N.exe"C:\Users\Admin\AppData\Local\Temp\4c4ad3168ff823c050f984b5e2c69810N.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:1668 -
\??\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:2884 -
\??\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:2792 -
\??\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:2564 -
\??\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:2732
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:10 /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2984
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:11 /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:580
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C:\Windows\Explorer.exeC:\Windows\Explorer.exe3⤵PID:2604
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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
MD56a7ee542d20ed61aa2f7a3bd669b50c5
SHA1282a1df28296de59b00c94716b6c953cc520946c
SHA2563d30b4d87d5bc7d44bdba783a492ef42db5b21b2f761855ff8e108409866e158
SHA5122674e417dade4fa835ba56643e3c9d7ee4decc888a20462ed8586400629dd612a93cc030e895186a2f62286a03213b1e191a4532fb0ebe5be66ebbc0dd2103a0
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Filesize
2.5MB
MD53f1e1941ed4d264f1ff54487f5a396bc
SHA131134fdc6aa5082663472d2bf710b4d9b2a43619
SHA256e9271b8302087cd336c7088cfe99368c405c818dee7190b48d5e14dd840529ee
SHA512af9d44907531b9da52f78582d76eebabc4d06bd1002bcc4b300b8865fade8929e260e24044ac8e96d2f2b2f1c64bdabfb3751c70ea789fe3b7daff7220b31055
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Filesize
2.5MB
MD5aeb9c1c8244192d921926ba9d8d2781f
SHA1d295f8c11c3be77e101f8b66c5ac0492e377bc4a
SHA256c35120c819cc228c2abc56850a6004b76557cd798e1ff2a7c5e8e1bf5dca2587
SHA5127e57e68b2922a306d8c9cf6465bbf60040b0be30fc09d1c224656bd8573b9f09830933b0a2de1e045a145dca3fc1de1be61be221f256314dd9e0f151634a9100