Analysis

  • max time kernel
    91s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 13:54

General

  • Target

    Bootstrapper.exe

  • Size

    800KB

  • MD5

    02c70d9d6696950c198db93b7f6a835e

  • SHA1

    30231a467a49cc37768eea0f55f4bea1cbfb48e2

  • SHA256

    8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3

  • SHA512

    431d9b9918553bff4f4a5bc2a5e7b7015f8ad0e2d390bb4d5264d08983372424156524ef5587b24b67d1226856fc630aaca08edc8113097e0094501b4f08efeb

  • SSDEEP

    12288:qhd8cjaLXVh84wEFkW1mocaBj6WtiRPpptHxQ0z:2ycjar84w5W4ocaBj6y2tHDz

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd" /c ipconfig /all
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Windows\system32\ipconfig.exe
        ipconfig /all
        3⤵
        • Gathers network information
        PID:1144
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3384
    • C:\Users\Admin\AppData\Local\Temp\BootstrapperV2.04.exe
      "C:\Users\Admin\AppData\Local\Temp\BootstrapperV2.04.exe" --oldBootstrapper "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe" --isUpdate true
      2⤵
      • Executes dropped EXE
      PID:1200

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BootstrapperV2.04.exe

    Filesize

    2.8MB

    MD5

    be4da425d9b7593e358ffbfca29f9c70

    SHA1

    dc98530aad9728d779866ae957a738c52b13a565

    SHA256

    c5277ddb6e51181d2b8bad59acf5f2badf5613b1e73384a84b793f720aa76c0d

    SHA512

    35790944f5855038f8357c0f6d11ea81b260632e590c26f9342e8beb1a8dfd2e3eb9efa11f8378f8542cad45e7675af3d29cf27424accf35aaa6aeb34487155b

  • memory/1200-20-0x000001F7FEC70000-0x000001F7FEC78000-memory.dmp

    Filesize

    32KB

  • memory/1200-26-0x000001F79C6C0000-0x000001F79C6C8000-memory.dmp

    Filesize

    32KB

  • memory/1200-21-0x000001F7FECF0000-0x000001F7FED28000-memory.dmp

    Filesize

    224KB

  • memory/1200-23-0x000001F79BF80000-0x000001F79C080000-memory.dmp

    Filesize

    1024KB

  • memory/1200-18-0x000001F7FC4F0000-0x000001F7FC7CA000-memory.dmp

    Filesize

    2.9MB

  • memory/1200-22-0x000001F7FEC80000-0x000001F7FEC8E000-memory.dmp

    Filesize

    56KB

  • memory/1200-19-0x000001F7FCB90000-0x000001F7FCBA0000-memory.dmp

    Filesize

    64KB

  • memory/1200-29-0x000001F79BA20000-0x000001F79BA2A000-memory.dmp

    Filesize

    40KB

  • memory/1200-30-0x000001F7FEC90000-0x000001F7FEC98000-memory.dmp

    Filesize

    32KB

  • memory/1200-28-0x000001F79C6B0000-0x000001F79C6BA000-memory.dmp

    Filesize

    40KB

  • memory/1200-27-0x000001F79C6D0000-0x000001F79C6E6000-memory.dmp

    Filesize

    88KB

  • memory/1200-24-0x000001F79BA10000-0x000001F79BA1A000-memory.dmp

    Filesize

    40KB

  • memory/1200-25-0x000001F79C680000-0x000001F79C6A8000-memory.dmp

    Filesize

    160KB

  • memory/1804-17-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1804-1-0x0000027BDE240000-0x0000027BDE30E000-memory.dmp

    Filesize

    824KB

  • memory/1804-4-0x0000027BE0080000-0x0000027BE00A2000-memory.dmp

    Filesize

    136KB

  • memory/1804-0-0x00007FFAEEA33000-0x00007FFAEEA35000-memory.dmp

    Filesize

    8KB

  • memory/1804-2-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

    Filesize

    10.8MB