Overview

overview

10

Static

static

c794b13f64...11.exe

windows7-x64

10

c794b13f64...11.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2022, 23:50

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General

  • Target

    c794b13f648296d3ce367aeee708348f0bcc597c3b1873e464fa66c05b213711.exe

  • Size

    4.3MB

  • MD5

    6e745bc9cd3a84bdc382adc72d3c5e1f

  • SHA1

    d5034f29f210d80f0c863740091ee1aac11235d4

  • SHA256

    c794b13f648296d3ce367aeee708348f0bcc597c3b1873e464fa66c05b213711

  • SHA512

    363b76b6585db33fba3e59963bf151f52e7b4a68cefc807d9fdfcfdc3d21fd1a487281f5c1af5edbb544419dc1d44620bf9b905b4a6d3b7155d7910ef5671c3e

  • SSDEEP

    6144:priTOeUceEZPVB18RdCqdomsKA6h/llz6MP86JQPDHDdx/Qtqx:khZdv8R0qRsKA69llz6gPJQPDHvd

Score
10/10
evasionpersistencetrojan

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
    persistence
  • UAC bypass 3 TTPs 12 IoCs
    evasiontrojan
  • Adds policy Run key to start application 2 TTPs 28 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 6 IoCs
    evasiontrojan
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 39 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\c794b13f648296d3ce367aeee708348f0bcc597c3b1873e464fa66c05b213711.exe
    "C:\Users\Admin\AppData\Local\Temp\c794b13f648296d3ce367aeee708348f0bcc597c3b1873e464fa66c05b213711.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds policy Run key to start application
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4568
    • C:\Users\Admin\AppData\Local\Temp\ziokv.exe
      "C:\Users\Admin\AppData\Local\Temp\ziokv.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:4964
    • C:\Users\Admin\AppData\Local\Temp\ziokv.exe
      "C:\Users\Admin\AppData\Local\Temp\ziokv.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • System policy modification
      PID:3168
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3748

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\ziokv.exe
            Filesize

            5.7MB

            MD5

            d4b3f12c7db32d288d348ab9ad804de5

            SHA1

            f635dca4a2d465d889e632f71deeed3a14e78e56

            SHA256

            b21350decb04b2fc776143323ef08a77168e6c4f3347642e48cdc3192962d7b7

            SHA512

            31e9b9bca8f7249ddd2efd0a0477c13f486b41230b36b900785e003dc22f2d9c5d2e690408c3ec4d0436971192e8704e273ec58472452d0982e0deaa51456476

            Download Submit

          • C:\Users\Admin\AppData\Local\Temp\ziokv.exe
            Filesize

            5.7MB

            MD5

            d4b3f12c7db32d288d348ab9ad804de5

            SHA1

            f635dca4a2d465d889e632f71deeed3a14e78e56

            SHA256

            b21350decb04b2fc776143323ef08a77168e6c4f3347642e48cdc3192962d7b7

            SHA512

            31e9b9bca8f7249ddd2efd0a0477c13f486b41230b36b900785e003dc22f2d9c5d2e690408c3ec4d0436971192e8704e273ec58472452d0982e0deaa51456476

            Download Submit

          • C:\Users\Admin\AppData\Local\Temp\ziokv.exe
            Filesize

            5.7MB

            MD5

            d4b3f12c7db32d288d348ab9ad804de5

            SHA1

            f635dca4a2d465d889e632f71deeed3a14e78e56

            SHA256

            b21350decb04b2fc776143323ef08a77168e6c4f3347642e48cdc3192962d7b7

            SHA512

            31e9b9bca8f7249ddd2efd0a0477c13f486b41230b36b900785e003dc22f2d9c5d2e690408c3ec4d0436971192e8704e273ec58472452d0982e0deaa51456476

            Download Submit