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Analysis
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max time kernel
150s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28/05/2024, 03:09
Behavioral task
behavioral1
Sample
cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe
Resource
win10v2004-20240426-en
General
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Target
cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe
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Size
2.5MB
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MD5
5ca005a9e762448e7f22ac187729be56
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SHA1
28d031b5ad6412280afbeec70c0fece85d2e86b7
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SHA256
cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9
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SHA512
ba3f933b42c14a369b7b9e22906bf56b328c686cfce6709ffaffe05d765a63c78e16d019ad072754b95d3e6ff2922c673b19db4af720981896dee9acec579289
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SSDEEP
49152:MxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxa:Mxx9NUFkQx753uWuCyyxa
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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe -
Detects executables packed with Themida 17 IoCs
resource yara_rule behavioral2/memory/2796-0-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/files/0x000a00000002342b-8.dat INDICATOR_EXE_Packed_Themida behavioral2/memory/368-10-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/files/0x0008000000023433-15.dat INDICATOR_EXE_Packed_Themida behavioral2/memory/3516-19-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/files/0x0008000000023435-26.dat INDICATOR_EXE_Packed_Themida behavioral2/memory/3416-28-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/4692-33-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/2796-42-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/3516-41-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/4692-38-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/368-43-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/3416-44-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/368-53-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/368-55-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/3416-62-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida behavioral2/memory/3416-66-0x0000000000400000-0x0000000000A0E000-memory.dmp INDICATOR_EXE_Packed_Themida -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.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 Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ spoolsv.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 spoolsv.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.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 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.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\SystemBiosVersion svchost.exe -
Executes dropped EXE 4 IoCs
pid Process 368 explorer.exe 3516 spoolsv.exe 3416 svchost.exe 4692 spoolsv.exe -
resource yara_rule behavioral2/memory/2796-0-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/files/0x000a00000002342b-8.dat themida behavioral2/memory/368-10-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/files/0x0008000000023433-15.dat themida behavioral2/memory/3516-19-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/files/0x0008000000023435-26.dat themida behavioral2/memory/3416-28-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/4692-33-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/2796-42-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/3516-41-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/4692-38-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/368-43-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/3416-44-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/368-53-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/368-55-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/3416-62-0x0000000000400000-0x0000000000A0E000-memory.dmp themida behavioral2/memory/3416-66-0x0000000000400000-0x0000000000A0E000-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 spoolsv.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.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 -
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 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 368 explorer.exe 3516 spoolsv.exe 3416 svchost.exe 4692 spoolsv.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification \??\c:\windows\resources\themes\explorer.exe cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe 368 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 368 explorer.exe 3416 svchost.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 368 explorer.exe 368 explorer.exe 3516 spoolsv.exe 3516 spoolsv.exe 3416 svchost.exe 3416 svchost.exe 4692 spoolsv.exe 4692 spoolsv.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2796 wrote to memory of 368 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 82 PID 2796 wrote to memory of 368 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 82 PID 2796 wrote to memory of 368 2796 cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe 82 PID 368 wrote to memory of 3516 368 explorer.exe 83 PID 368 wrote to memory of 3516 368 explorer.exe 83 PID 368 wrote to memory of 3516 368 explorer.exe 83 PID 3516 wrote to memory of 3416 3516 spoolsv.exe 86 PID 3516 wrote to memory of 3416 3516 spoolsv.exe 86 PID 3516 wrote to memory of 3416 3516 spoolsv.exe 86 PID 3416 wrote to memory of 4692 3416 svchost.exe 87 PID 3416 wrote to memory of 4692 3416 svchost.exe 87 PID 3416 wrote to memory of 4692 3416 svchost.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe"C:\Users\Admin\AppData\Local\Temp\cbcfdd32a836531eedf06b413278288bdd85316fe3c6a148814084823beb09b9.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796 -
\??\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
- 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
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:368 -
\??\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
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3516 -
\??\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
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3416 -
\??\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
- Suspicious use of SetWindowsHookEx
PID:4692
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Virtualization/Sandbox Evasion
1Replay Monitor
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Downloads
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Filesize
2.5MB
MD509b77876c4cd932646180778a3662425
SHA19b409177739773ed4e3756c371c982d446c0d5a1
SHA256482815e20c4cf1c9e03a8cd8d7a42050d0fd536dc884fa6d767ad5e1c3b6491b
SHA51259e4f378b31a36e26a6e66882bd4ed5d183ef4c8195ba86a4a684eff6c1ab328ccec010c94f38199f9d4b74655b87e74fbba2a8a7e7892fafcbba81779babe13
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Filesize
2.5MB
MD58ebdb6ba2292810fb58b47b2acbe55fb
SHA1a1d737c36c125501565106f3f584fe9043d3d880
SHA256650c022570a01aa4092a8d0f6f8566936b699d8d7a2a7aaebaa72a73bc5075e1
SHA512d6dfd51d6cf7fcd00a2598d3b5b133d24e7ad9b977737cca8a2c13b9749622b4ccc2225b8fed264c347ff45812d6ef1243319bb07ba2d44179b82e632b7eafb6
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Filesize
2.5MB
MD52350cf937d4636fc85cf0ae2d96b5ccb
SHA1ab341326f542a319b8474c3e46d3c8a9d57bfa50
SHA256e4121caefb01be4f334d641b57ac9e7537e1df4a16ca59a3afbb7e4682feca6f
SHA512e51defbedd752737fd6f0b86ae6eb6809b4370afb24d03d024af5d752207bc44ede65baaf5ab6931f83148a78b547f7a5133d34477538293ecb2976220b31128