Analysis

  • max time kernel
    137s
  • max time network
    130s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    20-10-2021 14:18

General

  • Target

    g9XCQOMvwhPEV6L.exe

  • Size

    436KB

  • MD5

    272949acab6b71a4819f040bc4f0c5c4

  • SHA1

    ba714a50c8b67e5b951ab74ef5c201884ef223f0

  • SHA256

    2d7c5f6f54961f7bad156c7fd858c1718218fccc731ccd45f75f7180d03d921c

  • SHA512

    aca3035eb6a102beeb9497783a0828f4acfc1defefafc702b0b50bb2a7f74f89066b7f6847f4a0df8e41a24715e52955327ded4fd97d82aa45e0b2d581768cb5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.goldentravel.ec
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chinadusco@5555343

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe
    "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe
      "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
      2⤵
        PID:3720
      • C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe
        "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
        2⤵
          PID:1920
        • C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe
          "C:\Users\Admin\AppData\Local\Temp\g9XCQOMvwhPEV6L.exe"
          2⤵
          • Drops file in Drivers directory
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:996

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      3
      T1081

      Collection

      Data from Local System

      3
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\g9XCQOMvwhPEV6L.exe.log
        MD5

        0c2899d7c6746f42d5bbe088c777f94c

        SHA1

        622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

        SHA256

        5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

        SHA512

        ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

      • memory/996-124-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/996-133-0x0000000005FB0000-0x0000000005FB1000-memory.dmp
        Filesize

        4KB

      • memory/996-132-0x0000000005F10000-0x0000000005F11000-memory.dmp
        Filesize

        4KB

      • memory/996-131-0x0000000002DB0000-0x0000000002DB1000-memory.dmp
        Filesize

        4KB

      • memory/996-125-0x000000000043772E-mapping.dmp
      • memory/2784-119-0x0000000004AF0000-0x0000000004FEE000-memory.dmp
        Filesize

        5.0MB

      • memory/2784-123-0x0000000008700000-0x0000000008758000-memory.dmp
        Filesize

        352KB

      • memory/2784-122-0x0000000008560000-0x0000000008561000-memory.dmp
        Filesize

        4KB

      • memory/2784-121-0x0000000004FE0000-0x0000000004FE7000-memory.dmp
        Filesize

        28KB

      • memory/2784-120-0x0000000004B30000-0x0000000004B31000-memory.dmp
        Filesize

        4KB

      • memory/2784-115-0x0000000000270000-0x0000000000271000-memory.dmp
        Filesize

        4KB

      • memory/2784-118-0x0000000004B90000-0x0000000004B91000-memory.dmp
        Filesize

        4KB

      • memory/2784-117-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
        Filesize

        4KB