Analysis

  • max time kernel
    113s
  • max time network
    164s
  • 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, 09:06

General

  • Target

    f9f56dc5a28b8d2f44c4ddb997108dc277be1e0591024295dc308ff4b4fce980.exe

  • Size

    512KB

  • MD5

    31504d46629f043b108e72e9e9a3dd43

  • SHA1

    c0b6a4f5cac413d97c25487abbc6e30ca5111912

  • SHA256

    f9f56dc5a28b8d2f44c4ddb997108dc277be1e0591024295dc308ff4b4fce980

  • SHA512

    27bb77fae3d195b8e918ef88dbc9b14d59d03a0af4ec769ac743b51bec7145b71b248319aa9b708914b673d85847187f2c15e124197dbf7260ded78495fdf97a

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E40:0+h9OY70z+warul3E40

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\f9f56dc5a28b8d2f44c4ddb997108dc277be1e0591024295dc308ff4b4fce980.exe
    "C:\Users\Admin\AppData\Local\Temp\f9f56dc5a28b8d2f44c4ddb997108dc277be1e0591024295dc308ff4b4fce980.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:4028
    • C:\Users\Admin\AppData\Local\Temp\n162\s166.exe
      "C:\Users\Admin\AppData\Local\Temp\n162\s166.exe" f799a6c102b7269966f20f78Wb21dFYobAJrWksawezK0DF3bgCFNkAIhAhTZhbQx6zVp4AYPdTtyaaakhB7772RrH3HpTzLiH+oe2cPe0sHHBG+VtvC8hiPL8EDdZRIqGjXxhBHMFQAQu6koIAb95mRknoY/lC8S764sSgmyBu+K3PI /v "C:\Users\Admin\AppData\Local\Temp\f9f56dc5a28b8d2f44c4ddb997108dc277be1e0591024295dc308ff4b4fce980.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:4944

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n162\s166.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n162\s166.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/4944-135-0x00007FFFEC1A0000-0x00007FFFECBD6000-memory.dmp

          Filesize

          10.2MB

        • memory/4944-136-0x00000000013CA000-0x00000000013CF000-memory.dmp

          Filesize

          20KB

        • memory/4944-137-0x00000000013CA000-0x00000000013CF000-memory.dmp

          Filesize

          20KB