Analysis

  • max time kernel
    151s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 13:28

General

  • Target

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a.exe

  • Size

    235KB

  • MD5

    2a88c48fc7685a737ce34139c91ed7ee

  • SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

  • SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

  • SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • SSDEEP

    6144:ILz6tH6cHXdjMZNXd4Rku/c/KZVGDPfc7:ICtH6INuz9KYPfc7

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a.exe
    "C:\Users\Admin\AppData\Local\Temp\a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Users\Admin\AppData\Local\Temp\a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a.exe
      "C:\Users\Admin\AppData\Local\Temp\a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1756
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1300
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:984
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:1356
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:1480
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:1736
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:976
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:1924

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    235KB

    MD5

    2a88c48fc7685a737ce34139c91ed7ee

    SHA1

    a2e3e7efb74eec20acfbb33defc2da5b300912d5

    SHA256

    a636faf46963da90e6252f3dbfd8b62fba7d7a4430d7fba8b8f6eef4c857416a

    SHA512

    9b4da767da27a4d80c7d04e5ccdf740d5d0e806e5f7ac160ffce17dc835c48fa8ea5361260974be8922c64f7418b4da233c8f411e418c4d48cb6fbb0c651134e

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    7KB

    MD5

    346cc610f2a43754fbd2ad0bd4d67edf

    SHA1

    06fb84bd968978f834820ddfd59075e8d1e21759

    SHA256

    c214b3c08c5abd9c178cb566a6b2beb5026ec1a54197e8bd403d2e3af90e0e74

    SHA512

    eb9fd2dbd7f53b642384311a8f10547c78ae29263cc7d64b3fc2056fb818ddc0c7c80a42d4596c3557a0ac42dcf7d9198f6d742088f7336c4d7868acb52ca940

  • memory/976-155-0x000000000041C01E-mapping.dmp

  • memory/976-162-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/984-84-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/984-85-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/984-81-0x0000000000000000-mapping.dmp

  • memory/1300-72-0x0000000000000000-mapping.dmp

  • memory/1300-86-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1300-78-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1300-76-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1356-108-0x0000000000080000-0x00000000000AE000-memory.dmp

    Filesize

    184KB

  • memory/1356-101-0x0000000000080000-0x00000000000AE000-memory.dmp

    Filesize

    184KB

  • memory/1356-110-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1356-113-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1356-112-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1356-98-0x000000000041C01E-mapping.dmp

  • memory/1356-105-0x0000000000080000-0x00000000000AE000-memory.dmp

    Filesize

    184KB

  • memory/1480-130-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1480-129-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1480-128-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1480-121-0x000000000041C01E-mapping.dmp

  • memory/1512-55-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1512-54-0x00000000756A1000-0x00000000756A3000-memory.dmp

    Filesize

    8KB

  • memory/1512-56-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-147-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-146-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-145-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-138-0x000000000041C01E-mapping.dmp

  • memory/1756-70-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-60-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-64-0x000000000041C01E-mapping.dmp

  • memory/1756-66-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-63-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-58-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-61-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-68-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-57-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1756-77-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-87-0x0000000000000000-mapping.dmp

  • memory/1924-90-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1924-111-0x00000000748C0000-0x0000000074E6B000-memory.dmp

    Filesize

    5.7MB