Analysis

  • max time kernel
    150s
  • max time network
    168s
  • 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, 07:16

General

  • Target

    aab4ccb821ab038ca677d8647b6983f9f9e7cfa54e89d6a45560330f5baa5efa.exe

  • Size

    512KB

  • MD5

    8801a2958334f1fca1fbd236b54c1f0a

  • SHA1

    3a3b5f5951c5a7cc74e4947c8bfd06fc39646117

  • SHA256

    aab4ccb821ab038ca677d8647b6983f9f9e7cfa54e89d6a45560330f5baa5efa

  • SHA512

    a6be0d06eea78ccb76cdf3b5284c5c2a596213601d7180cc69ea224d8cd42baeb5d9286ef1a96f7b9e2a5caab34f171719fe251bb20e41e5cb62ec53736965e9

  • 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 3 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\aab4ccb821ab038ca677d8647b6983f9f9e7cfa54e89d6a45560330f5baa5efa.exe
    "C:\Users\Admin\AppData\Local\Temp\aab4ccb821ab038ca677d8647b6983f9f9e7cfa54e89d6a45560330f5baa5efa.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:3500
    • C:\Users\Admin\AppData\Local\Temp\n2079\s2079.exe
      "C:\Users\Admin\AppData\Local\Temp\n2079\s2079.exe" 449ecfd158e4995437bee1edaqdd7HVgHeAtpZy0MD54P/TX2gbrK4MewlAsYXIeDCIXZZ+/rfrbZOpkkCieU9mLqitkW1fQstRT1kWBejFCEYftQmF8bXPhwmp3CslzxBOCjA59Ay9fiZHvpsl6VzGW4nsnUT5EPUreDjNAbyw5qYPS /v "C:\Users\Admin\AppData\Local\Temp\aab4ccb821ab038ca677d8647b6983f9f9e7cfa54e89d6a45560330f5baa5efa.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:2072

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n2079\s2079.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n2079\s2079.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/2072-135-0x00007FFA05AF0000-0x00007FFA06526000-memory.dmp

          Filesize

          10.2MB

        • memory/2072-136-0x00000000009D0000-0x00000000009E0000-memory.dmp

          Filesize

          64KB

        • memory/2072-137-0x00000000009D0000-0x00000000009E0000-memory.dmp

          Filesize

          64KB