Resubmissions

16-12-2021 15:50

211216-tab9escdc7 1

01-11-2021 11:55

211101-n3vnksefdn 10

01-11-2021 10:56

211101-m1ptwaeecm 10

Analysis

  • max time kernel
    147s
  • max time network
    130s
  • platform
    windows11_x64
  • resource
    win11
  • submitted
    01-11-2021 11:55

General

  • Target

    e62467fc0e7982279b2752a3330e741135366e7b318890aa9613ccc5ddcfd37f.exe

  • Size

    546KB

  • MD5

    490f0cff27a1cff0aead0ca3864e15d6

  • SHA1

    d78d47381845c3f712745e709a315a647c017506

  • SHA256

    e62467fc0e7982279b2752a3330e741135366e7b318890aa9613ccc5ddcfd37f

  • SHA512

    567de9d34fc6a0d74540f3d168cf6441e5cc5d5c7d95e2907ae6e0f0ab7b09f90f60dc15480c5e52873db2832542058f92757bcb952130525b2ffef10f68ee73

Score
8/10

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 6 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e62467fc0e7982279b2752a3330e741135366e7b318890aa9613ccc5ddcfd37f.exe
    "C:\Users\Admin\AppData\Local\Temp\e62467fc0e7982279b2752a3330e741135366e7b318890aa9613ccc5ddcfd37f.exe"
    1⤵
      PID:2540
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 0f09733ee9a5678045c464fff7c01b09 9IDtXk8kpE6GjoFleu8TmQ.0.1.0.3.0
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:3520
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:4412
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
      1⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
        C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
        2⤵
          PID:2380
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe 0f09733ee9a5678045c464fff7c01b09 9IDtXk8kpE6GjoFleu8TmQ.0.1.0.3.0
        1⤵
        • Modifies data under HKEY_USERS
        PID:2260

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2380-149-0x0000000000000000-mapping.dmp

      • memory/4412-146-0x000001BA41520000-0x000001BA41530000-memory.dmp

        Filesize

        64KB

      • memory/4412-147-0x000001BA41760000-0x000001BA41770000-memory.dmp

        Filesize

        64KB

      • memory/4412-148-0x000001BA43CA0000-0x000001BA43CA4000-memory.dmp

        Filesize

        16KB