Analysis

  • max time kernel
    102s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    21-01-2021 18:33

General

  • Target

    haitianx.exe

  • Size

    45KB

  • MD5

    c2a516ecaa7cd7627eee19decabbedb6

  • SHA1

    5799c2d794a9f961e54e4e9726a847bc6fdc52e0

  • SHA256

    c29a5c591efd9fd4dab5c5f29fbec995829618ac2c2256523bac884182574e49

  • SHA512

    3fece40243b87f4ea6f48796e7086350b080be46f11bae66d4cfc2738de6de78a1a7ec5950aaece71d44b34668b9206a431802b48de87f0980dc23d4f98f69e9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    polar.argondns.net
  • Port:
    587
  • Username:
    bretandmix@temsad.com
  • Password:
    ]4&w8LUz9*LT

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
    "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
      "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1712
    • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
      "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
      2⤵
        PID:1692
      • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
        "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
        2⤵
          PID:388
        • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
          "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
          2⤵
            PID:1632
          • C:\Users\Admin\AppData\Local\Temp\haitianx.exe
            "C:\Users\Admin\AppData\Local\Temp\haitianx.exe"
            2⤵
              PID:700

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Credential Access

          Credentials in Files

          3
          T1081

          Collection

          Data from Local System

          3
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/388-25-0x00000000048F0000-0x00000000048F1000-memory.dmp
            Filesize

            4KB

          • memory/388-15-0x000000000043734E-mapping.dmp
          • memory/388-17-0x0000000073980000-0x000000007406E000-memory.dmp
            Filesize

            6.9MB

          • memory/700-22-0x000000000043734E-mapping.dmp
          • memory/700-23-0x0000000073980000-0x000000007406E000-memory.dmp
            Filesize

            6.9MB

          • memory/1336-3-0x00000000000F0000-0x00000000000F1000-memory.dmp
            Filesize

            4KB

          • memory/1336-5-0x0000000004B10000-0x0000000004B11000-memory.dmp
            Filesize

            4KB

          • memory/1336-6-0x0000000004C40000-0x0000000004C9B000-memory.dmp
            Filesize

            364KB

          • memory/1336-2-0x0000000073980000-0x000000007406E000-memory.dmp
            Filesize

            6.9MB

          • memory/1336-24-0x00000000003E0000-0x00000000003E1000-memory.dmp
            Filesize

            4KB

          • memory/1632-18-0x000000000043734E-mapping.dmp
          • memory/1692-11-0x000000000043734E-mapping.dmp
          • memory/1712-7-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1712-26-0x0000000000950000-0x0000000000951000-memory.dmp
            Filesize

            4KB

          • memory/1712-12-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/1712-10-0x0000000073980000-0x000000007406E000-memory.dmp
            Filesize

            6.9MB

          • memory/1712-8-0x000000000043734E-mapping.dmp
          • memory/1712-27-0x0000000000951000-0x0000000000952000-memory.dmp
            Filesize

            4KB