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Analysis

  • max time kernel
    147s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2024, 16:50

General

  • Target

    658910d38d06cf4392afedf75ae1b5c9.exe

  • Size

    2.0MB

  • MD5

    658910d38d06cf4392afedf75ae1b5c9

  • SHA1

    363cc30332255003ee038f4d81386d11fb8fe9dd

  • SHA256

    96e901289c7f0d5427e980cbff581ae655fc9639e9cbd1c598596e0e84a11f2e

  • SHA512

    2453043dacbcd42fa5963c0d6ba24847e729da6c75c926b94164f430be609c13de457d23afbf51085178987c3ad9107d94dda1bfe47086f0b3cb69e6fe211c4f

  • SSDEEP

    24576:z4tU5NRDeBKra/ADaTJi8gTPO1RhlgP4eCdmo/oLK+ef7nmvwQPgb9iEg0ij8OLX:Tr8Ku4OF0Pyx/4Pg7nhb9Pa1I8cr/k

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\658910d38d06cf4392afedf75ae1b5c9.exe
    "C:\Users\Admin\AppData\Local\Temp\658910d38d06cf4392afedf75ae1b5c9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "CCUpdate" /tr '"C:\Users\Admin\AppData\Roaming\CCUpdate.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3700
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "CCUpdate" /tr '"C:\Users\Admin\AppData\Roaming\CCUpdate.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1084
    • C:\Users\Admin\AppData\Roaming\CCUpdate.exe
      "C:\Users\Admin\AppData\Roaming\CCUpdate.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4012
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "CCUpdate" /tr '"C:\Users\Admin\AppData\Roaming\CCUpdate.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3216
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "CCUpdate" /tr '"C:\Users\Admin\AppData\Roaming\CCUpdate.exe"'
          4⤵
          • Creates scheduled task(s)
          PID:4540
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:1232
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3880

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\CCUpdate.exe

      Filesize

      550KB

      MD5

      2b9f908bb5e0decd52e3e35d0882c515

      SHA1

      fd6152b2238fd9abaffc05dc7bab4136c2f4912e

      SHA256

      e07102bbf0a7e481456e404a0e7033b332bf7157ba3ad9b41094a8c34c2be540

      SHA512

      b20199b44361e9061497ae0f37f9b0030109b2642162509cb100c1a0aec72c484e16a4bc4337b0beff8e785d3d8739db41eb22b4c1256a89a28ed494f088b19b

    • C:\Users\Admin\AppData\Roaming\CCUpdate.exe

      Filesize

      293KB

      MD5

      bf49f3388c8fc553b8e2c59b47f08dea

      SHA1

      161834703c676feebae5e9b370abdea6e2b94c06

      SHA256

      3efbda2bf9956f983b533caa6521f6b648f7388e0ce5d4e9cad8ee6e7368dde5

      SHA512

      d733e0a9c3013f60ef301d2eaf90d2c188b8e4d18227452cbd9919db7ced41f1276c0830c25a0d9a8419e5741ad7a85d947ede589080e824b125763e56d843ba

    • C:\Users\Admin\AppData\Roaming\CCUpdate.exe

      Filesize

      1007KB

      MD5

      a88769031ef56327505d045fffe3fea9

      SHA1

      043f3321fc1a64cbf19db47f24f6672fecca8313

      SHA256

      0effd87b78b11319de288ace359da6d00a64bf72959b775a3223aec335c71e10

      SHA512

      86e0239b1893f219526827ad38286c6bee63ac10e9ba66731f5ff831e925b08323d6fe9d4e8728308421104acc57caabce78a585d154c3c1a868734ab7dbb100

    • memory/656-17-0x00007FFFFB600000-0x00007FFFFC0C1000-memory.dmp

      Filesize

      10.8MB

    • memory/656-4-0x0000000003660000-0x0000000003672000-memory.dmp

      Filesize

      72KB

    • memory/656-3-0x000000001C5E0000-0x000000001C7C8000-memory.dmp

      Filesize

      1.9MB

    • memory/656-2-0x0000000003700000-0x0000000003710000-memory.dmp

      Filesize

      64KB

    • memory/656-1-0x00007FFFFB600000-0x00007FFFFC0C1000-memory.dmp

      Filesize

      10.8MB

    • memory/656-0-0x0000000000940000-0x0000000000B4C000-memory.dmp

      Filesize

      2.0MB

    • memory/3880-54-0x000001E9089D0000-0x000001E9089D1000-memory.dmp

      Filesize

      4KB

    • memory/3880-38-0x000001E900660000-0x000001E900670000-memory.dmp

      Filesize

      64KB

    • memory/3880-56-0x000001E908A00000-0x000001E908A01000-memory.dmp

      Filesize

      4KB

    • memory/3880-57-0x000001E908A00000-0x000001E908A01000-memory.dmp

      Filesize

      4KB

    • memory/3880-58-0x000001E908B10000-0x000001E908B11000-memory.dmp

      Filesize

      4KB

    • memory/4012-18-0x00007FFFFB600000-0x00007FFFFC0C1000-memory.dmp

      Filesize

      10.8MB

    • memory/4012-21-0x00007FFFFB600000-0x00007FFFFC0C1000-memory.dmp

      Filesize

      10.8MB

    • memory/4012-19-0x0000000001560000-0x0000000001570000-memory.dmp

      Filesize

      64KB