Analysis

  • max time kernel
    162s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14-10-2021 05:00

General

  • Target

    Purchase Order 2892808.exe

  • Size

    562KB

  • MD5

    54c9b215e30e50b7f9f559b414737d10

  • SHA1

    56015460883c19c741a26b9d94b27952f67ec656

  • SHA256

    9b674819f4cfeff2ecac04486fa031d913d78e5649dee0e3acf0b4078f4fee74

  • SHA512

    1d15db38dff0619df154ec814a192076909f6de6133c8aef189b4189c3b1e5a8e3e51681dd4a691c1beb4758a0605ef3537d0d7b0fa006fa840423376457e797

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.emirtecnt.com
  • Port:
    587
  • Username:
    reporting@emirtecnt.com
  • Password:
    Amazinggrace123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe"
      2⤵
        PID:2348
      • C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase Order 2892808.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2332

    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\Purchase Order 2892808.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/996-121-0x0000000007960000-0x0000000007961000-memory.dmp
      Filesize

      4KB

    • memory/996-116-0x0000000005AB0000-0x0000000005AB1000-memory.dmp
      Filesize

      4KB

    • memory/996-118-0x00000000054B0000-0x00000000054B1000-memory.dmp
      Filesize

      4KB

    • memory/996-119-0x00000000055B0000-0x0000000005AAE000-memory.dmp
      Filesize

      5.0MB

    • memory/996-120-0x0000000005830000-0x0000000005835000-memory.dmp
      Filesize

      20KB

    • memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp
      Filesize

      4KB

    • memory/996-122-0x0000000007A80000-0x0000000007AFA000-memory.dmp
      Filesize

      488KB

    • memory/996-117-0x00000000054D0000-0x00000000054D1000-memory.dmp
      Filesize

      4KB

    • memory/2332-123-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2332-124-0x00000000004375FE-mapping.dmp
    • memory/2332-130-0x00000000053C0000-0x00000000058BE000-memory.dmp
      Filesize

      5.0MB

    • memory/2332-131-0x0000000005880000-0x0000000005881000-memory.dmp
      Filesize

      4KB

    • memory/2332-132-0x0000000006120000-0x0000000006121000-memory.dmp
      Filesize

      4KB

    • memory/2332-135-0x00000000053C0000-0x00000000058BE000-memory.dmp
      Filesize

      5.0MB