Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2023 21:00

General

  • Target

    RFQ155115.exe

  • Size

    809KB

  • MD5

    bc7f894d4ac5380359cc4ecfb5e89540

  • SHA1

    dc4c07d683c482f878971840a407efac016ce360

  • SHA256

    ded4d7400f9b37aa33cddbe13bb8f7bbb3a3acf4e4708d0b7cfededa46ffb79b

  • SHA512

    d6c4c9240173b3bcf673980da8a40c811c94616512414b12fa99c4b88c03a2aa306724586ae478c23292c658ed6409d719dbfc256dbc8232959d01fd3d012b92

  • SSDEEP

    24576:9XKtD/61Ijjp/M5VYLCrrVCm51jNOOty+oZQGF3z:M6Kjjp/u5XV/bjQ0mZt

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.

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

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe"
      2⤵
        PID:2996
      • C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ155115.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3016

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2916-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp

      Filesize

      6.9MB

    • memory/2916-0-0x00000000009B0000-0x0000000000A80000-memory.dmp

      Filesize

      832KB

    • memory/2916-2-0x0000000000550000-0x0000000000590000-memory.dmp

      Filesize

      256KB

    • memory/2916-3-0x0000000000410000-0x0000000000428000-memory.dmp

      Filesize

      96KB

    • memory/2916-4-0x00000000003F0000-0x00000000003F8000-memory.dmp

      Filesize

      32KB

    • memory/2916-5-0x0000000000590000-0x000000000059A000-memory.dmp

      Filesize

      40KB

    • memory/2916-6-0x0000000004980000-0x00000000049FE000-memory.dmp

      Filesize

      504KB

    • memory/2916-20-0x00000000743E0000-0x0000000074ACE000-memory.dmp

      Filesize

      6.9MB

    • memory/3016-9-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-12-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3016-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-15-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-19-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-17-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-7-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3016-21-0x00000000743E0000-0x0000000074ACE000-memory.dmp

      Filesize

      6.9MB

    • memory/3016-22-0x0000000004B20000-0x0000000004B60000-memory.dmp

      Filesize

      256KB

    • memory/3016-25-0x00000000743E0000-0x0000000074ACE000-memory.dmp

      Filesize

      6.9MB