Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/07/2024, 01:17

General

  • Target
    2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff.exe
  • Size 697KB
  • Sample240710-bnst8axejk
  • SHA256 2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff.exe
    "C:\Users\Admin\AppData\Local\Temp\2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:660
    • C:\Program Files (x86)\windows mail\wab.exe
      "C:\Users\Admin\AppData\Local\Temp\2e2b22d80e84945f3149e24fb08a874e5293d4fbbff6d7df7c941fb47be9b4ff.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetWindowsHookEx
      PID:1668

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa884B.tmp\System.dll
        • Size 11KB
        • SHA256 fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
        • MD5 SHA1 SHA512 SSDEEP

        memory/660-11-0x0000000077891000-0x00000000779B1000-memory.dmp

        memory/660-12-0x0000000010004000-0x0000000010005000-memory.dmp

        memory/1668-13-0x0000000077918000-0x0000000077919000-memory.dmp

        memory/1668-14-0x0000000077891000-0x00000000779B1000-memory.dmp

        memory/1668-28-0x0000000077891000-0x00000000779B1000-memory.dmp

        memory/1668-31-0x0000000000AF4000-0x0000000000AF5000-memory.dmp

        memory/1668-32-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-33-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-34-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-35-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-29-0x0000000001D20000-0x0000000007772000-memory.dmp

        memory/1668-36-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-37-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-38-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-39-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-42-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-44-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-45-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-46-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-47-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-48-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-49-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-50-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-51-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-52-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-53-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-54-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-55-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-56-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-57-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-58-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-59-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-60-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-61-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-62-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-64-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-65-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-63-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-66-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-67-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-68-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-73-0x0000000077891000-0x00000000779B1000-memory.dmp

        memory/1668-76-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-77-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-78-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-79-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-80-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-81-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-82-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-83-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-84-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-85-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-86-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-87-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-88-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-89-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-90-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-91-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-92-0x0000000000AC0000-0x0000000001D14000-memory.dmp

        memory/1668-93-0x0000000000AC0000-0x0000000001D14000-memory.dmp