Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    05-11-2020 16:36

General

  • Target

    dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f.exe

  • Size

    484KB

  • MD5

    b988afbb1df5f268d64a2ef604c92cdf

  • SHA1

    b9320b32b14219e2829eaa6a69b046e6d68b39dd

  • SHA256

    dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f

  • SHA512

    ff4d78db6deac88a8094e4921bc4c8bf8a245b97e4e7c2e3c6f9855b900f4f667980e4543ebb53842778405841e2b575d414c05bc893211c1555cc0cd64e51f5

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5728 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f.exe
    "C:\Users\Admin\AppData\Local\Temp\dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f.exe
      "C:\Users\Admin\AppData\Local\Temp\dfb2cb14a2f6a3281514226cec06bb2bb99e9ebbeb583a9b6f80ec8b4d6fe15f.exe"
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3076
      • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
        "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
        3⤵
        • Executes dropped EXE
        PID:692
      • C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\89477942.exe
        "89477942.exe"
        3⤵
        • Executes dropped EXE
        PID:2076
      • C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\421950546.exe
        C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\421950546.exe /sjson C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\book.json
        3⤵
        • Executes dropped EXE
        PID:3176
      • C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\1066157052.exe
        C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\1066157052.exe /sjson C:\Users\Admin\AppData\Local\Temp\{2E4E3A8B-1D26-4A81-B402-E98EF35A58B1}\book.json
        3⤵
        • Executes dropped EXE
        PID:1188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 320
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1092

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1092-7-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

    Filesize

    4KB

  • memory/1092-3-0x0000000004770000-0x0000000004771000-memory.dmp

    Filesize

    4KB

  • memory/3076-0-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB

  • memory/3076-2-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB