Analysis

  • max time kernel
    362s
  • max time network
    430s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 07:09

General

  • Target

    badd5dfb295c2bed6af906272c00f23a61a6f433ce9d1d4218052a601ff8943a.exe

  • Size

    512KB

  • MD5

    a0f697edc5f06622d55fab6744bf381b

  • SHA1

    85391155217a06bb272f26b1d7aac0607997a0bb

  • SHA256

    badd5dfb295c2bed6af906272c00f23a61a6f433ce9d1d4218052a601ff8943a

  • SHA512

    95dfebe4104580972710d9579e9be5792ee748217e6b69cd423c46fbe53e61dfe34bef6a7f88f4ac8116e05ac65ef3140cd24f4f835ce8b8c24ae8c5bfe7dcb3

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4I:0+h9OY70z+warul3E4I

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 4 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\badd5dfb295c2bed6af906272c00f23a61a6f433ce9d1d4218052a601ff8943a.exe
    "C:\Users\Admin\AppData\Local\Temp\badd5dfb295c2bed6af906272c00f23a61a6f433ce9d1d4218052a601ff8943a.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:3536
    • C:\Users\Admin\AppData\Local\Temp\n8855\s8855.exe
      "C:\Users\Admin\AppData\Local\Temp\n8855\s8855.exe" 21826a2f03fd0bff60f8458fnhTkrIv/oLQX/lL1BfA8Rj1SfUYIegJxjHsibUkhJtrwEGscu64yg8PfkcKCh8Fm2h4dO0huYIfjIf8uJAqIM0g8DWyI9ush8RSUoa8rYT7JfYgsglOqYFBVW38Qcp97lGsV4dCOSLN/AyV0sDOXynti /v "C:\Users\Admin\AppData\Local\Temp\badd5dfb295c2bed6af906272c00f23a61a6f433ce9d1d4218052a601ff8943a.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:4552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8855\s8855.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8855\s8855.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4552-135-0x00007FFF94460000-0x00007FFF94E96000-memory.dmp

    Filesize

    10.2MB

  • memory/4552-136-0x000000000138A000-0x000000000138F000-memory.dmp

    Filesize

    20KB

  • memory/4552-137-0x000000000138A000-0x000000000138F000-memory.dmp

    Filesize

    20KB