Analysis

  • max time kernel
    90s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:07

General

  • Target

    PRODUCT LISTS_____PDF_____0011.exe

  • Size

    499KB

  • MD5

    bc9fd8f4ea37c6b294ff3a7b4c4f66ce

  • SHA1

    48c7c0476a8f55c73be4ff8a2e1938f65514a5da

  • SHA256

    145d6a68dc07f5ed56f660761fa8412600d1c553bfcf67b321db725482ff991c

  • SHA512

    632e81ce8118a5a52b5008f2cf6dd91896bb8742591ae5a5e7470ea0c72eab06054543e977476bcf5f378f27fe3af1915100b2d34c065e21c53b077308ce9196

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ijeomam288

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ijeomam288

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PRODUCT LISTS_____PDF_____0011.exe
    "C:\Users\Admin\AppData\Local\Temp\PRODUCT LISTS_____PDF_____0011.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RNSGPnYt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA359.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3716
    • C:\Users\Admin\AppData\Local\Temp\PRODUCT LISTS_____PDF_____0011.exe
      "{path}"
      2⤵
        PID:3176
      • C:\Users\Admin\AppData\Local\Temp\PRODUCT LISTS_____PDF_____0011.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:876
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:2904

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PRODUCT LISTS_____PDF_____0011.exe.log
        Filesize

        507B

        MD5

        1c985cdad5556063862ee63e3473c93a

        SHA1

        133c14d8d4643caba072ea007b67b3e8574ee7be

        SHA256

        ea9307d2150c0abfb0c5734155b0e8d9f8097a7ff7f34f4030db6809c181c5bc

        SHA512

        fd906e2649be66ec5a38cebaf3e1391f281b3303518827ce3efab50b969e73d6a4c4bc52b641afa16758bdf2251d8fbd3a3a246f7f671510f4db8695b32540ca

      • C:\Users\Admin\AppData\Local\Temp\tmpA359.tmp
        Filesize

        1KB

        MD5

        52b4655f0599f301f6b3916266544df5

        SHA1

        6bc1558c04a2647afa0cac692ada8dc93493a628

        SHA256

        24b647b7a551dbfa9f2732491c0b0cbcab2575eba86ac998fcfc3adde919a7ea

        SHA512

        615ba00eeb285591ace285eeaf7b11e5b650b8097ac898805aa91f7a2a766b21f44e6022eb245415d80410b404efadab21393d96c1834d155d2c5ed54484585d

      • memory/876-137-0x0000000000000000-mapping.dmp
      • memory/876-143-0x0000000006D90000-0x0000000006D9A000-memory.dmp
        Filesize

        40KB

      • memory/876-142-0x0000000006890000-0x00000000068E0000-memory.dmp
        Filesize

        320KB

      • memory/876-140-0x0000000005B90000-0x0000000005BF6000-memory.dmp
        Filesize

        408KB

      • memory/876-138-0x0000000000400000-0x0000000000452000-memory.dmp
        Filesize

        328KB

      • memory/2328-133-0x00000000062C0000-0x0000000006864000-memory.dmp
        Filesize

        5.6MB

      • memory/2328-130-0x00000000005B0000-0x0000000000636000-memory.dmp
        Filesize

        536KB

      • memory/2328-132-0x0000000005750000-0x00000000057EC000-memory.dmp
        Filesize

        624KB

      • memory/2328-131-0x0000000005230000-0x00000000052C2000-memory.dmp
        Filesize

        584KB

      • memory/2904-141-0x0000000000000000-mapping.dmp
      • memory/3176-136-0x0000000000000000-mapping.dmp
      • memory/3716-134-0x0000000000000000-mapping.dmp