Analysis

  • max time kernel
    134s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:22

General

  • Target

    cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403.exe

  • Size

    364KB

  • MD5

    54a2c676671f6ddbb2177bf8e890acd0

  • SHA1

    884cfa603a2b4e79d6fe2f41d102e6b55ee2de59

  • SHA256

    cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403

  • SHA512

    fab5630b95bd11cadaa2179f0add2946b2185d5594251762d2c00f5cd0f86877e3fe7a47b46b6172865aa30ffd743ea218b3b5584124dbd5e8dc7a6a7623f2c9

  • SSDEEP

    6144:FC4m9hjy766vocAXRXi1s4dKNLGEbhSBr29lW7XczExw4Rqo:zm9hjR6A7hXEcNLtSBybW7cO7oo

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403.exe
    "C:\Users\Admin\AppData\Local\Temp\cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Users\Admin\AppData\Local\Temp\cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403.exe
      "C:\Users\Admin\AppData\Local\Temp\cd9681cfe1ef76bf46c079e4de23b7ba72bce3929585fae08e0a62937e38d403.exe"
      2⤵
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\syswow64\explorer.exe
        "C:\Windows\syswow64\explorer.exe"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\syswow64\svchost.exe
          -k netsvcs
          4⤵
            PID:800
          • C:\Windows\syswow64\vssadmin.exe
            vssadmin.exe Delete Shadows /All /Quiet
            4⤵
            • Interacts with shadow copies
            PID:1916
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1088

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\fek2B36.tmp

      Filesize

      172KB

      MD5

      685f1cbd4af30a1d0c25f252d399a666

      SHA1

      6a1b978f5e6150b88c8634146f1406ed97d2f134

      SHA256

      0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

      SHA512

      6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

    • memory/664-65-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-63-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-70-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-67-0x0000000000418820-mapping.dmp

    • memory/664-59-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-60-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-62-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/664-66-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/800-74-0x0000000000000000-mapping.dmp

    • memory/800-77-0x0000000000090000-0x00000000000B0000-memory.dmp

      Filesize

      128KB

    • memory/852-58-0x00000000004B0000-0x0000000000523000-memory.dmp

      Filesize

      460KB

    • memory/852-68-0x00000000004B0000-0x0000000000523000-memory.dmp

      Filesize

      460KB

    • memory/852-57-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/852-56-0x0000000074071000-0x0000000074073000-memory.dmp

      Filesize

      8KB

    • memory/852-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

      Filesize

      8KB

    • memory/1640-69-0x0000000000000000-mapping.dmp

    • memory/1640-73-0x0000000000080000-0x00000000000A0000-memory.dmp

      Filesize

      128KB

    • memory/1640-72-0x0000000074681000-0x0000000074683000-memory.dmp

      Filesize

      8KB

    • memory/1640-78-0x0000000000080000-0x00000000000A0000-memory.dmp

      Filesize

      128KB

    • memory/1916-75-0x0000000000000000-mapping.dmp