Analysis

  • max time kernel
    130s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    07-07-2020 13:47

General

  • Target

    Fedex.exe

  • Size

    807KB

  • MD5

    aedcd1bff5430ef44e428fa297923690

  • SHA1

    1ac82d9a83f14b50155f3e4705a735e79f6c1579

  • SHA256

    7c4ec41185be3d57adbaa0bfcd8b517aa2cabbf40320e2de0dd1b4ad73aaab36

  • SHA512

    91f41fc9eb145e2c4aac7ae1bfed6c4a62bc2bc59e17c60f44cb47e275874e791daedbec11f3932b0edb2436e18de8d898f7b715687f80de09116ba608195df6

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    daddyhandsome1234

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fedex.exe
    "C:\Users\Admin\AppData\Local\Temp\Fedex.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Users\Admin\AppData\Local\Temp\Fedex.exe
      "C:\Users\Admin\AppData\Local\Temp\Fedex.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1084
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1104
      • C:\Users\Admin\AppData\Local\Temp\Fedex.exe
        "C:\Users\Admin\AppData\Local\Temp\Fedex.exe" 2 1084 64631
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:836

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/836-4-0x0000000000000000-mapping.dmp

    • memory/1084-0-0x0000000000400000-0x00000000004B1000-memory.dmp

      Filesize

      708KB

    • memory/1084-2-0x0000000000400000-0x00000000004B1000-memory.dmp

      Filesize

      708KB

    • memory/1084-1-0x00000000004AF740-mapping.dmp

    • memory/1084-3-0x0000000000400000-0x00000000004B1000-memory.dmp

      Filesize

      708KB

    • memory/1084-5-0x00000000004C0000-0x0000000000512000-memory.dmp

      Filesize

      328KB

    • memory/1084-6-0x0000000000562000-0x0000000000563000-memory.dmp

      Filesize

      4KB

    • memory/1084-7-0x0000000000260000-0x00000000002AC000-memory.dmp

      Filesize

      304KB

    • memory/1104-9-0x0000000000000000-mapping.dmp