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Resubmissions

11/02/2025, 14:17

250211-rl745awmbw 10

Analysis

  • max time kernel
    20s
  • max time network
    24s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/02/2025, 14:17

General

  • Target

    AJProxy.exe

  • Size

    638KB

  • MD5

    6dbf1564024546cf0da4bf8f35936265

  • SHA1

    ec7b401b5222590e9116d36fb454108a09c7d6a7

  • SHA256

    af01b25f7db087fe50e3deebf5e55f8cdf9c3588d223471b4f71d9aa82fc92fd

  • SHA512

    0a4194bbea2b895306a505ca7e27a22fd79589b3c8e6eeae3f747a184f720e87f586d77b5fb88ed24d1447b467f972873150db92f18139d0c5f3d278b304b72d

  • SSDEEP

    12288:h32/lChV9mf/2QRXDD1yed0fsU4GSWaOvPESGj4s32xEdRCS:h3yChVA2Q9NXw2/wPOjdGxY

Malware Config

Signatures

  • Growtopia

    Growtopa is an opensource modular stealer written in C#.

  • Growtopia family
  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AJProxy.exe
    "C:\Users\Admin\AppData\Local\Temp\AJProxy.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c timeout /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\AJProxy.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3688
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1144-0-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/1144-1-0x0000000000F90000-0x0000000001036000-memory.dmp

    Filesize

    664KB

  • memory/1144-2-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1144-3-0x00000000062C0000-0x0000000006326000-memory.dmp

    Filesize

    408KB

  • memory/1144-5-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB