Analysis

  • max time kernel
    152s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01/02/2022, 02:22

General

  • Target

    ffbb522721eb4c518fe199d0cd60da52875933a5171b3d0ff0e1f855834b02f9.msi

  • Size

    384KB

  • MD5

    781379eaa915fc31b506737317c84368

  • SHA1

    a8e531220a3cb652feb600944a357b614adda2b4

  • SHA256

    ffbb522721eb4c518fe199d0cd60da52875933a5171b3d0ff0e1f855834b02f9

  • SHA512

    f0c9081a58f19f997deeae4b1c9d69ce87e2be91f33168727687a88f04f59369561342cc12bbc0bed5d0675ea2ff1804827dfb78d07148069c14620e0b37983b

Score
8/10

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 44 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ffbb522721eb4c518fe199d0cd60da52875933a5171b3d0ff0e1f855834b02f9.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3264
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3512
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3180
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 30edae95079f097253d004c854e4a600 M47BRkgQTUyhsRmoBvSRng.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:2856

    Network

    MITRE ATT&CK Enterprise v6

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    Downloads