Analysis

  • max time kernel
    42s
  • max time network
    76s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    01-02-2022 10:37

General

  • Target

    313dc38bada29a700a34ec2c11e61f6f3edb7e031e134afbd8bca668b494b599.dll

  • Size

    583KB

  • MD5

    25f1acad71927d1f4f8559a75bb6319a

  • SHA1

    33425c95c8d1cdfc5c244078fd799ca765fd6dc8

  • SHA256

    313dc38bada29a700a34ec2c11e61f6f3edb7e031e134afbd8bca668b494b599

  • SHA512

    5592b2cd5e5800f001e431f4d3eabeafeb80a4a53c83f6c42eb91fbf3e9f8db1d2d215a3a3701620ddb3d45616f9f8501993c5bb857285e0bcdab6270c0e6ca3

Score
8/10

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 6 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\313dc38bada29a700a34ec2c11e61f6f3edb7e031e134afbd8bca668b494b599.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4080
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\313dc38bada29a700a34ec2c11e61f6f3edb7e031e134afbd8bca668b494b599.dll,#1
      2⤵
        PID:2492
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 6a5e8f29640984a2092e90925d460954 b6eUj2fH2UaHpG6f1e9LbA.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:4964
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4872

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4872-130-0x000001CA7FFA0000-0x000001CA7FFB0000-memory.dmp
      Filesize

      64KB

    • memory/4872-131-0x000001CA807E0000-0x000001CA807F0000-memory.dmp
      Filesize

      64KB

    • memory/4872-132-0x000001CA82D10000-0x000001CA82D14000-memory.dmp
      Filesize

      16KB