Analysis

  • max time kernel
    133s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:17

General

  • Target

    Payment Transfer Slip.exe

  • Size

    706KB

  • MD5

    90bd06de49d3e571ea2c4edd225738c3

  • SHA1

    0113e3a212bfeeb5f905279f5b131dc880a4ab76

  • SHA256

    53af62936f7cb4fcbcb2775be40606aed87def8af75821520ebd857dc91370c1

  • SHA512

    91b61e057d7ce58eb546c22d11a28fa835a5a1c8bd5fc601f190600d6d312ef1512d2c1041502346478af57fae127dd17d42dfa7fd6e18052ef229f0e019feda

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.active.by
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    QWErty654321

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.active.by
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    QWErty654321

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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 12 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\Payment Transfer Slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Transfer Slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Users\Admin\AppData\Local\Temp\Payment Transfer Slip.exe
      "{path}"
      2⤵
        PID:4948
      • C:\Users\Admin\AppData\Local\Temp\Payment Transfer Slip.exe
        "{path}"
        2⤵
          PID:1840
        • C:\Users\Admin\AppData\Local\Temp\Payment Transfer Slip.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:2260

      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/1840-136-0x0000000000000000-mapping.dmp
      • memory/2260-137-0x0000000000000000-mapping.dmp
      • memory/2260-138-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/2260-139-0x00000000064F0000-0x0000000006556000-memory.dmp
        Filesize

        408KB

      • memory/2260-140-0x0000000006C90000-0x0000000006CE0000-memory.dmp
        Filesize

        320KB

      • memory/4240-130-0x00000000002F0000-0x00000000003A6000-memory.dmp
        Filesize

        728KB

      • memory/4240-131-0x00000000054F0000-0x0000000005A94000-memory.dmp
        Filesize

        5.6MB

      • memory/4240-132-0x0000000005120000-0x00000000051B2000-memory.dmp
        Filesize

        584KB

      • memory/4240-133-0x00000000050F0000-0x00000000050FA000-memory.dmp
        Filesize

        40KB

      • memory/4240-134-0x0000000008810000-0x00000000088AC000-memory.dmp
        Filesize

        624KB

      • memory/4948-135-0x0000000000000000-mapping.dmp