Analysis

  • max time kernel
    116s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 14:39

General

  • Target

    2a1ce8e989e4097f2832592c3c3e9554d6ed87450d5b389711d3e21fc7fbcb4a.exe

  • Size

    601KB

  • MD5

    36a542bdf1667c0a8a0f2ef32ed6a150

  • SHA1

    147bc6d662be2b478dd4a5cef27b50d0f05cd17d

  • SHA256

    2a1ce8e989e4097f2832592c3c3e9554d6ed87450d5b389711d3e21fc7fbcb4a

  • SHA512

    ff629290c721e862d6f0162c1da183ce26fd820f5f6e20d2db94b87740d79b2fd711f08918faa0b2626ebccda73f42f533bb7c2f76fd4c4c48ae5838ac456219

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAdNY:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4Ak

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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 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\2a1ce8e989e4097f2832592c3c3e9554d6ed87450d5b389711d3e21fc7fbcb4a.exe
    "C:\Users\Admin\AppData\Local\Temp\2a1ce8e989e4097f2832592c3c3e9554d6ed87450d5b389711d3e21fc7fbcb4a.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:4740
    • C:\Users\Admin\AppData\Local\Temp\n1236\s1236.exe
      "C:\Users\Admin\AppData\Local\Temp\n1236\s1236.exe" f5b54510c81996cb1d64acdfiquww8k3cUyZD5SjoHDhsP0nrb7ERyqoTflJVDbJZZQEIGDbD9Z1WJ/xz10yXY42INb7HUXre+HEA56WqKbYYP7B81w/dlOXysOwEii/V/SABc1uONatU04e74P4i/9eQ3O0o+83WmDTUcR6gw5y5oWWOiV7WD6SJn8A8w8= /v "C:\Users\Admin\AppData\Local\Temp\2a1ce8e989e4097f2832592c3c3e9554d6ed87450d5b389711d3e21fc7fbcb4a.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:4248

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n1236\s1236.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • C:\Users\Admin\AppData\Local\Temp\n1236\s1236.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • memory/4248-135-0x00007FFC1BEE0000-0x00007FFC1C916000-memory.dmp

    Filesize

    10.2MB

  • memory/4248-136-0x0000000000BCA000-0x0000000000BCF000-memory.dmp

    Filesize

    20KB

  • memory/4248-137-0x0000000000BCA000-0x0000000000BCF000-memory.dmp

    Filesize

    20KB

  • memory/4248-138-0x0000000000BCA000-0x0000000000BCF000-memory.dmp

    Filesize

    20KB