Resubmissions

30-11-2023 17:10

231130-vpsqdseg33 10

Analysis

  • max time kernel
    151s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2023 17:10

General

  • Target

    RUNTWAREV2.exe

  • Size

    227KB

  • MD5

    6a3f3ce9e59e7f8b18895edb0ccb8e4f

  • SHA1

    81da4be170d0e4be51014e5bccc89c09f0c95202

  • SHA256

    dee17b4eadaee39276596882c2c60a1b59451017aa91f5c255dee92ae6689449

  • SHA512

    b9caa7e6020d9c7b2442b351a03215a4dece45613918936f848de180b5da92286a20ea8527c676b6fd0d4843a7c2fd9f9123c85c8630e62b883a907ae0101fba

  • SSDEEP

    6144:+loZM+rIkd8g+EtXHkv/iD44AummkrHMV9YW3X2cAb8e1mxzOi:ooZtL+EP84AummkrHMV9YW3X21Azj

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RUNTWAREV2.exe
    "C:\Users\Admin\AppData\Local\Temp\RUNTWAREV2.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4816
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /0
    1⤵
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:796
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4284
    • C:\Windows\System32\zcj3o5.exe
      "C:\Windows\System32\zcj3o5.exe"
      1⤵
        PID:3908
      • C:\Windows\System32\xwizard.exe
        "C:\Windows\System32\xwizard.exe"
        1⤵
          PID:1680

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/796-13-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-7-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-14-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-16-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-5-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-6-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-17-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-11-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-15-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/796-12-0x0000027FC1970000-0x0000027FC1971000-memory.dmp

          Filesize

          4KB

        • memory/1532-0-0x0000020374040000-0x0000020374080000-memory.dmp

          Filesize

          256KB

        • memory/1532-1-0x00007FF8E8AC0000-0x00007FF8E9581000-memory.dmp

          Filesize

          10.8MB

        • memory/1532-4-0x00007FF8E8AC0000-0x00007FF8E9581000-memory.dmp

          Filesize

          10.8MB

        • memory/1532-2-0x0000020375E00000-0x0000020375E10000-memory.dmp

          Filesize

          64KB