Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 05:13

General

  • Target

    4faa75278c66e94e6cfd14b1096d16a66a8983aac071809d11e9cf0c9172632d.exe

  • Size

    624KB

  • MD5

    483455cfcf6481368a32551042f992a2

  • SHA1

    5dbf33acde86209b5ca66f62cdde17d7eeb28d9f

  • SHA256

    4faa75278c66e94e6cfd14b1096d16a66a8983aac071809d11e9cf0c9172632d

  • SHA512

    b5833f698ed16d1a795d19004afc33f73b086b98d429c6839f24023de00cd353d61796f6f1b412f3145526f21d4ced1639667dbcd3cc66d41c2f09514a600b0e

  • SSDEEP

    12288:rtPSUHqNTgJ8vGROyn1cPZuZxKRgIPvxu6fpUxW9BBGm+Ds:wUHqduQyn6x4egIZuye89BMm+Ds

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4faa75278c66e94e6cfd14b1096d16a66a8983aac071809d11e9cf0c9172632d.exe
    "C:\Users\Admin\AppData\Local\Temp\4faa75278c66e94e6cfd14b1096d16a66a8983aac071809d11e9cf0c9172632d.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Users\Admin\AppData\Local\Temp\n7807\s7807.exe
      "C:\Users\Admin\AppData\Local\Temp\n7807\s7807.exe" 9f88d50c02f9952272feb9e7MWLcfvLO7PlrXl6QTUsVB5lYH95dKnJH6CJE0+DbKv15QFXwaiBlhpXjXYD0OartvC1VFp7wGQZyEOMtXgmjnibeS4fv/q1izc5G0E1O0iaEiMd85tsFzCWmdq825Dy7w6eEAD+1Lm8bbU3X9R99rjEUMxbQM9nYyN2E /v "C:\Users\Admin\AppData\Local\Temp\4faa75278c66e94e6cfd14b1096d16a66a8983aac071809d11e9cf0c9172632d.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3480

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7807\s7807.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • C:\Users\Admin\AppData\Local\Temp\n7807\s7807.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • memory/3480-135-0x00007FFF57530000-0x00007FFF57F66000-memory.dmp

    Filesize

    10.2MB

  • memory/3480-136-0x000000000074A000-0x000000000074F000-memory.dmp

    Filesize

    20KB

  • memory/3480-137-0x000000000074A000-0x000000000074F000-memory.dmp

    Filesize

    20KB