Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 02:05

General

  • Target

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe

  • Size

    1.9MB

  • MD5

    b1a1b801d4d4cd9a69432cbac0a53393

  • SHA1

    0ca06e648515de6973846fbd1d3c2ddd67af0157

  • SHA256

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c

  • SHA512

    3b8c5bb38009e03b45c99e207170847bc91c7691624663602d14b417e2f20266a3098e67e13c2e6a5a77bdbabe98058c3adbd89adad0674e5860bedb746db034

  • SSDEEP

    24576:mxWVeyRYcR0Ow9HMobQi3AlbWAcAYDgWlZiibmwa+5v0DmZlbmw7orwi1KxOqO:m8Yc2zsobQrhRR+mibhv0DmT6I6DkO

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Checks processor information in registry 2 TTPs 15 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe
    "C:\Users\Admin\AppData\Local\Temp\b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:620
    • \??\c:\program files (x86)\microsoft analysis services\as oledb\10\serverinterfaces.exe
      "c:\program files (x86)\microsoft analysis services\as oledb\10\serverinterfaces.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1552
    • \??\c:\program files (x86)\common files\microsoft shared\msinfo\en-us\msinfowindows6.1.7600.163857.0907131255.exe
      "c:\program files (x86)\common files\microsoft shared\msinfo\en-us\msinfowindows6.1.7600.163857.0907131255.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2968
    • \??\c:\program files (x86)\common files\system\ole db\en-us\sqlxmlxmicrosoft.exe
      "c:\program files (x86)\common files\system\ole db\en-us\sqlxmlxmicrosoft.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:940
    • \??\c:\program files (x86)\common files\microsoft shared\vsta\8.0\x86\microsoftvisual.exe
      "c:\program files (x86)\common files\microsoft shared\vsta\8.0\x86\microsoftvisual.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\ServerInterfaces.exe

    Filesize

    1.9MB

    MD5

    d8a6a5fb6b811fd15418f70f4c778236

    SHA1

    c5ae7353ddaef65ff939428becff6b72cf5c0775

    SHA256

    0c938f62b4e6d5b7b44ad9833a29c5ad6bbccfe6e41c18ba0c39187e6180ee05

    SHA512

    59b4750b671341a69e35585f6a7ba0d278c40e463eb7ce53979f527327c2ef7717f3280b379fbd9b3b30462cd573b7e50d3a8ef4026fb437be94fd145c2f13d5

  • C:\Program Files (x86)\Microsoft Office\Office14\Document Parts\1033\14\BuiltInBuilding.exe

    Filesize

    1.9MB

    MD5

    b1a1b801d4d4cd9a69432cbac0a53393

    SHA1

    0ca06e648515de6973846fbd1d3c2ddd67af0157

    SHA256

    b91e77cdaa582335f5e2714d4f84910dfda1a272d2d568053c68b7738191be1c

    SHA512

    3b8c5bb38009e03b45c99e207170847bc91c7691624663602d14b417e2f20266a3098e67e13c2e6a5a77bdbabe98058c3adbd89adad0674e5860bedb746db034