Analysis

  • max time kernel
    157s
  • max time network
    38s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    15-03-2023 23:08

General

  • Target

    ReasonLabs/DNS/rsDNSSvc.installstate

  • Size

    7KB

  • MD5

    362ce475f5d1e84641bad999c16727a0

  • SHA1

    6b613c73acb58d259c6379bd820cca6f785cc812

  • SHA256

    1f78f1056761c6ebd8965ed2c06295bafa704b253aff56c492b93151ab642899

  • SHA512

    7630e1629cf4abecd9d3ddea58227b232d5c775cb480967762a6a6466be872e1d57123b08a6179fe1cfbc09403117d0f81bc13724f259a1d25c1325f1eac645b

  • SSDEEP

    96:R3DrP/zatgCnNjn1x62muDr9aHmzcv/65m7JDcm0BefnanGEkn56vT4ZvR++JDr+:NexdYX7OSRjXsaA0Ndhi

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\rsDNSSvc.installstate
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\rsDNSSvc.installstate
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:928
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\rsDNSSvc.installstate"
        3⤵
        • Suspicious use of SetWindowsHookEx
        PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads