Analysis

  • max time kernel
    55s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2023, 18:53

General

  • Target

    82c72d1f6afd188285e2510da83364af2a686ffa.exe

  • Size

    817KB

  • MD5

    49c85634a86ddc630bf63c9a9f20b216

  • SHA1

    82c72d1f6afd188285e2510da83364af2a686ffa

  • SHA256

    23b733b80abf2a3de431fdc75ec1ce480c4352a92c97d5dba57a3a45cb1030fe

  • SHA512

    2082a7dc9a6f73200ed8b4f5d46b6f32b3292b67cb16f2116c5b122922e80fab548f85d0fef2009a6a38fa6341f725267308a3ef10951165cde8cf9059acb1e9

  • SSDEEP

    24576:kxeSqG4yPaKppo5TNrSOsez3ImX86F0xM:kaTS9ez4mXxWi

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82c72d1f6afd188285e2510da83364af2a686ffa.exe
    "C:\Users\Admin\AppData\Local\Temp\82c72d1f6afd188285e2510da83364af2a686ffa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Users\Admin\AppData\Local\Temp\82c72d1f6afd188285e2510da83364af2a686ffa.exe
      "C:\Users\Admin\AppData\Local\Temp\82c72d1f6afd188285e2510da83364af2a686ffa.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1736

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1408-54-0x0000000000BC0000-0x0000000000C92000-memory.dmp

    Filesize

    840KB

  • memory/1408-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

    Filesize

    8KB

  • memory/1408-56-0x00000000004E0000-0x00000000004F4000-memory.dmp

    Filesize

    80KB

  • memory/1408-57-0x00000000009C0000-0x00000000009CA000-memory.dmp

    Filesize

    40KB

  • memory/1408-58-0x0000000005110000-0x000000000517A000-memory.dmp

    Filesize

    424KB

  • memory/1408-59-0x00000000051C0000-0x00000000051F0000-memory.dmp

    Filesize

    192KB

  • memory/1736-60-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-61-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-64-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-65-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1736-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB