Analysis

  • max time kernel
    151s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2023, 08:18

General

  • Target

    NEAS.b060fac0206ab1c5908fa5b275c24980.exe

  • Size

    2.5MB

  • MD5

    b060fac0206ab1c5908fa5b275c24980

  • SHA1

    dccf921de613891ac66437ce09aa020856d8ba7d

  • SHA256

    6aaf3d544c49fccfec2907fb084cf961fc95dcb5e3dd421cba1f28df11c31ffb

  • SHA512

    433065d11b5aa2c91a155e2fc5d271e7ad87ab8a73b3a0d70d22e718db72e85686795f59d0b4a1813ef32a616aa567de4e97a0999c9d7f47504fe9731994eb2f

  • SSDEEP

    49152:G514SoSD/W72OvJPafR/u1GyIRGX5KjrPS5CR/CKyodP9Ija1:GbAYWqC1EjNS5Q/CEd2u1

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Themida packer 30 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.b060fac0206ab1c5908fa5b275c24980.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.b060fac0206ab1c5908fa5b275c24980.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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2432
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3052
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • 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
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2788
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • 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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2756
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • 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:832
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 08:20 /f
            5⤵
            • Creates scheduled task(s)
            PID:2572
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 08:21 /f
            5⤵
            • Creates scheduled task(s)
            PID:1020
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 08:22 /f
            5⤵
            • Creates scheduled task(s)
            PID:472
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2992

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Resources\Themes\explorer.exe

      Filesize

      2.5MB

      MD5

      a5f07063f32f265faa92192ce876f5e6

      SHA1

      ef3998bf4adc38ae2446b1b4f119c9e80a6a9d1f

      SHA256

      4429ddfa6f17b5ba6308c3ae8ec4b5b7f2198095f7fd97f3f4bf8652aa7020fa

      SHA512

      888fe656473f7cbbd4686be55ce165f7a2f7aa8b2f941704ed60a9b676d2e99013e33a517b8713614290bc5659ff205e3a971a8b700ba98d1451fb61d0944d61

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • C:\Windows\Resources\svchost.exe

      Filesize

      2.5MB

      MD5

      ccc7dafa0415d911ed897705f4f158f2

      SHA1

      403a18c23e6a92b1196b08cefd8adb1ea6a9fc77

      SHA256

      ce5170027613cfb8a5c585a092a8c9715ae74a2ee90aa3262d50233c469db72e

      SHA512

      f0caf1696d64effa8c8ae44bfd231ca5ef25e4024e2d5c1b4f0acf44220a7e235ab6bc396ce52272f1b21171d4bbb59ecaf1aec295691d18990d95445f5c29fd

    • \??\c:\windows\resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • \??\c:\windows\resources\svchost.exe

      Filesize

      2.5MB

      MD5

      ccc7dafa0415d911ed897705f4f158f2

      SHA1

      403a18c23e6a92b1196b08cefd8adb1ea6a9fc77

      SHA256

      ce5170027613cfb8a5c585a092a8c9715ae74a2ee90aa3262d50233c469db72e

      SHA512

      f0caf1696d64effa8c8ae44bfd231ca5ef25e4024e2d5c1b4f0acf44220a7e235ab6bc396ce52272f1b21171d4bbb59ecaf1aec295691d18990d95445f5c29fd

    • \??\c:\windows\resources\themes\explorer.exe

      Filesize

      2.5MB

      MD5

      a5f07063f32f265faa92192ce876f5e6

      SHA1

      ef3998bf4adc38ae2446b1b4f119c9e80a6a9d1f

      SHA256

      4429ddfa6f17b5ba6308c3ae8ec4b5b7f2198095f7fd97f3f4bf8652aa7020fa

      SHA512

      888fe656473f7cbbd4686be55ce165f7a2f7aa8b2f941704ed60a9b676d2e99013e33a517b8713614290bc5659ff205e3a971a8b700ba98d1451fb61d0944d61

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      2.5MB

      MD5

      a5f07063f32f265faa92192ce876f5e6

      SHA1

      ef3998bf4adc38ae2446b1b4f119c9e80a6a9d1f

      SHA256

      4429ddfa6f17b5ba6308c3ae8ec4b5b7f2198095f7fd97f3f4bf8652aa7020fa

      SHA512

      888fe656473f7cbbd4686be55ce165f7a2f7aa8b2f941704ed60a9b676d2e99013e33a517b8713614290bc5659ff205e3a971a8b700ba98d1451fb61d0944d61

    • \Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • \Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      e8b957a017ffb52bc0d7a250052b0af3

      SHA1

      95fd05cc0143d2fc0146e71d4ebaceafbf368a42

      SHA256

      00ec55747f8b212d0014580d20f5a51388d2fd3b487224f6b7dbdef3b63e17a1

      SHA512

      0c8b81fe6e552593d3e34d70c1155c473d738163f000e96721ff68bddcc3859e11dda05680b3ad0bbe31a7de0d072db5b4d3c418eeac147a844ec236c43bdbed

    • \Windows\Resources\svchost.exe

      Filesize

      2.5MB

      MD5

      ccc7dafa0415d911ed897705f4f158f2

      SHA1

      403a18c23e6a92b1196b08cefd8adb1ea6a9fc77

      SHA256

      ce5170027613cfb8a5c585a092a8c9715ae74a2ee90aa3262d50233c469db72e

      SHA512

      f0caf1696d64effa8c8ae44bfd231ca5ef25e4024e2d5c1b4f0acf44220a7e235ab6bc396ce52272f1b21171d4bbb59ecaf1aec295691d18990d95445f5c29fd

    • memory/832-51-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/832-56-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2432-1-0x00000000779B0000-0x00000000779B2000-memory.dmp

      Filesize

      8KB

    • memory/2432-27-0x0000000003340000-0x0000000003944000-memory.dmp

      Filesize

      6.0MB

    • memory/2432-26-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2432-55-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2432-0-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2432-43-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-58-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-70-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-41-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-61-0x00000000034D0000-0x0000000003AD4000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-49-0x00000000034D0000-0x0000000003AD4000-memory.dmp

      Filesize

      6.0MB

    • memory/2756-59-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2788-57-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2788-47-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/2788-38-0x0000000003490000-0x0000000003A94000-memory.dmp

      Filesize

      6.0MB

    • memory/2788-23-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-48-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-30-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-37-0x0000000003270000-0x0000000003874000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-60-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-11-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-21-0x0000000003270000-0x0000000003874000-memory.dmp

      Filesize

      6.0MB

    • memory/3052-73-0x0000000000400000-0x0000000000A04000-memory.dmp

      Filesize

      6.0MB