Analysis

  • max time kernel
    143s
  • max time network
    197s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-05-2021 15:52

General

  • Target

    a110ce3f_by_Libranalysis.exe

  • Size

    5.6MB

  • MD5

    a110ce3f7366c6bb12553ea17a793110

  • SHA1

    8e10076496347d6324382f20968f3b7c8516eedf

  • SHA256

    0e63f296fdc309cb1e487cd1a549d029d2a9144b8a050db274901030dc6ec0f3

  • SHA512

    dc9103da71a1143365f3c7f39c4a316a9b9cc6e337b601a95d13d68bba777d2145d79a9d44ac96edce71775819e4d4bb2bb0cf7e49627163237ec3580b25c3cf

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 13 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.

  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:472
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Modifies registry class
        PID:436
    • C:\Users\Admin\AppData\Local\Temp\a110ce3f_by_Libranalysis.exe
      "C:\Users\Admin\AppData\Local\Temp\a110ce3f_by_Libranalysis.exe"
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Windows\SysWOW64\rUNdlL32.eXe
          "C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\install.dll",setuser
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1484
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1848

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/436-94-0x0000000000430000-0x00000000004A0000-memory.dmp

      Filesize

      448KB

    • memory/876-91-0x0000000000890000-0x00000000008DB000-memory.dmp

      Filesize

      300KB

    • memory/876-92-0x0000000000B20000-0x0000000000B90000-memory.dmp

      Filesize

      448KB

    • memory/1484-89-0x0000000001E40000-0x0000000001F41000-memory.dmp

      Filesize

      1.0MB

    • memory/1484-88-0x0000000010000000-0x0000000010002000-memory.dmp

      Filesize

      8KB

    • memory/1484-90-0x00000000002A0000-0x00000000002FC000-memory.dmp

      Filesize

      368KB

    • memory/1848-85-0x0000000000830000-0x0000000000831000-memory.dmp

      Filesize

      4KB

    • memory/1848-95-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB

    • memory/1848-96-0x00000000002A0000-0x00000000002A9000-memory.dmp

      Filesize

      36KB

    • memory/1980-59-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

      Filesize

      8KB