Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 19:20

General

  • Target

    202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe

  • Size

    1.3MB

  • MD5

    9c4cf5de0f3b3b30580b293df06a8bfc

  • SHA1

    0d6f67856bc7769dd1f312a92ce42ea6dd42f1b2

  • SHA256

    e86126285765e75589f3e068ea6120e27d59b523595dfe1c333f1e89d5d235a2

  • SHA512

    0e6c38ae91b99438feda96789701862559c510595efbff665d4ae2176370c16f88d46ddfc45845b3ad01a7fcc67a478868fffdb0be647f24a24eb203af312959

  • SSDEEP

    24576:Iw8gCCgWDAe1wLiBnGHpq0Iylpn0oCcTQ0Ev:58g3nuEUr0rcTI

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Sets file execution options in registry 2 TTPs 12 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
    "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe"
    1⤵
    • UAC bypass
    • Sets file execution options in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1272
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3036
  • C:\Windows\system32\schtasks.exe
    schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe" /rl HIGHEST /f
    1⤵
    • Creates scheduled task(s)
    PID:2924
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BE6804A4-176C-4265-96FC-A53F00C49AEB} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
      C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
      2⤵
        PID:2760
      • C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
        C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
        2⤵
          PID:2308
        • C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
          C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
          2⤵
            PID:2700
        • C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe
          C:\Users\Admin\AppData\Local\Temp\202401069c4cf5de0f3b3b30580b293df06a8bfcransomlock.exe explorer.exe
          1⤵
            PID:2644

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/1272-129-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-0-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/1272-301-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-278-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-255-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-25-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-238-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-45-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/1272-70-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-89-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-213-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-44-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-194-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-108-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-150-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/1272-175-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/2308-131-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/2308-130-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/2644-14-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/2644-13-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/2700-256-0x00000000003D0000-0x00000000003D1000-memory.dmp

                  Filesize

                  4KB

                • memory/2700-259-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB

                • memory/2760-1-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/2760-4-0x0000000000400000-0x0000000000593000-memory.dmp

                  Filesize

                  1.6MB