Analysis

  • max time kernel
    140s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:41

General

  • Target

    quotation.exe

  • Size

    601KB

  • MD5

    c28e411d66d49853c4044f7f423fa950

  • SHA1

    dc78c53301fb2ecdd6a5b2dfda46827b5aebdf96

  • SHA256

    02aff20f4937dc1eca8940292d169147007a41b0589cd34d04a3ece9519b5125

  • SHA512

    c9cf743bfa786186306aa8fa4d483df57d7c5f29dd62653b79fb179cb0d96f72bf0746104eb38ded1a9664f97352f8fa0ab4823b84c8128cdaed5c5767671a29

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.pharco--corp.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    (UxyAlp7

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\quotation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\quotation.exe
      "{path}"
      2⤵
        PID:2040
      • C:\Users\Admin\AppData\Local\Temp\quotation.exe
        "{path}"
        2⤵
          PID:1224
        • C:\Users\Admin\AppData\Local\Temp\quotation.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1220

      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

      • memory/1220-64-0x000000000044761E-mapping.dmp
      • memory/1220-58-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-59-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-61-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-62-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-63-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-66-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-68-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1220-69-0x0000000076451000-0x0000000076453000-memory.dmp
        Filesize

        8KB

      • memory/1304-55-0x00000000003F0000-0x00000000003F8000-memory.dmp
        Filesize

        32KB

      • memory/1304-56-0x0000000005040000-0x00000000050B2000-memory.dmp
        Filesize

        456KB

      • memory/1304-57-0x0000000004EA0000-0x0000000004EF6000-memory.dmp
        Filesize

        344KB

      • memory/1304-54-0x0000000000120000-0x00000000001BC000-memory.dmp
        Filesize

        624KB