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Analysis

  • max time kernel
    178s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 00:30

General

  • Target

    bc5cb5bc28b7ee5db1337a31b8a973b9d15031d640d60430addf18fcdc640550.exe

  • Size

    512KB

  • MD5

    da9b8ae03af8e49be69b166dee84dd81

  • SHA1

    30012035ead197eafcf2cee9db37c6ad7b59d686

  • SHA256

    bc5cb5bc28b7ee5db1337a31b8a973b9d15031d640d60430addf18fcdc640550

  • SHA512

    1e0c2cc4d40f49e5c0a22adf7e52c60b7b7c640415c16761519d32e93ce8f729176a2a20f59936869ff8d03b6f37b3f79f91c1386b2ff410b55367dbfdf8c854

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4f:0+h9OY70z+warul3E4f

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 5 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\bc5cb5bc28b7ee5db1337a31b8a973b9d15031d640d60430addf18fcdc640550.exe
    "C:\Users\Admin\AppData\Local\Temp\bc5cb5bc28b7ee5db1337a31b8a973b9d15031d640d60430addf18fcdc640550.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:3408
    • C:\Users\Admin\AppData\Local\Temp\n7472\s7472.exe
      "C:\Users\Admin\AppData\Local\Temp\n7472\s7472.exe" 23c1b1f013dfd34b87670b9cw+b1m0ag4i7LeHzHjOnzOOuNrX0jb/IBRivSUo8RjMfTQCsRWBczZnZLwIoyQAIM7/flFUon0w8d5LNbDQjsUGFabMKZo1u6OoLIuWNu2Db5Y+Tpu7q+nCCdwb2hgExbokKy2CXujPBdVMWNtFreRN/2 /v "C:\Users\Admin\AppData\Local\Temp\bc5cb5bc28b7ee5db1337a31b8a973b9d15031d640d60430addf18fcdc640550.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:372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7472\s7472.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n7472\s7472.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/372-135-0x00007FF8CA490000-0x00007FF8CAEC6000-memory.dmp

    Filesize

    10.2MB

  • memory/372-136-0x0000000000D2A000-0x0000000000D2F000-memory.dmp

    Filesize

    20KB

  • memory/372-137-0x0000000000D2A000-0x0000000000D2F000-memory.dmp

    Filesize

    20KB