Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2023 06:42

General

  • Target

    unvp.exe

  • Size

    628KB

  • MD5

    60e0cb2dda65e61f07b78667b34ecbd2

  • SHA1

    4f974ad07111c0cf5082cb1fa039ed7718f4d6b0

  • SHA256

    26a294c50930c0cd9fbed08dd7fb63ea59bd2300eed46c452de0b4c5f7b95309

  • SHA512

    765704d47c86fbb46b184b39cf7aefcd69123f5284c416276e3d93dc9fe0f9ca7d868c8e88261122a93d8915a2cb7d403479fcd087f5cf28ccc15ed15c3a5c0b

  • SSDEEP

    12288:lJ0yXuN/VvbwTDgbLOtG7YaehgZHLWl5EHCNumB0s:z0EAdvEgelaeSHRy

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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\unvp.exe
    "C:\Users\Admin\AppData\Local\Temp\unvp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vgOtIQtcOdo.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1992
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vgOtIQtcOdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB23.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2636
    • C:\Users\Admin\AppData\Local\Temp\unvp.exe
      "C:\Users\Admin\AppData\Local\Temp\unvp.exe"
      2⤵
        PID:2536
      • C:\Users\Admin\AppData\Local\Temp\unvp.exe
        "C:\Users\Admin\AppData\Local\Temp\unvp.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2816

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpDB23.tmp

      Filesize

      1KB

      MD5

      a287b09146b692726e37a769c69c2a15

      SHA1

      09dbd738699d14ce908e4935f756d92a7603ee9c

      SHA256

      29b0cd74e93a446f64cffaf97c881bcba98126cae29ffd45c912c2800ad1a489

      SHA512

      c2b23e725b96761b7095b1a589ad2a7af4f9fed880f5a94f7e6c98aae80823253d069ef3961c0653855f5e8cd764bd8d7d473e5296ea01ce3ad5cb3406b173a1

    • memory/1992-36-0x000000006ED10000-0x000000006F2BB000-memory.dmp

      Filesize

      5.7MB

    • memory/1992-35-0x00000000024A0000-0x00000000024E0000-memory.dmp

      Filesize

      256KB

    • memory/1992-34-0x000000006ED10000-0x000000006F2BB000-memory.dmp

      Filesize

      5.7MB

    • memory/1992-33-0x000000006ED10000-0x000000006F2BB000-memory.dmp

      Filesize

      5.7MB

    • memory/1992-32-0x00000000024A0000-0x00000000024E0000-memory.dmp

      Filesize

      256KB

    • memory/2068-7-0x0000000000530000-0x000000000053C000-memory.dmp

      Filesize

      48KB

    • memory/2068-29-0x0000000074770000-0x0000000074E5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2068-8-0x0000000004990000-0x00000000049FA000-memory.dmp

      Filesize

      424KB

    • memory/2068-6-0x0000000000520000-0x000000000052A000-memory.dmp

      Filesize

      40KB

    • memory/2068-1-0x0000000074770000-0x0000000074E5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2068-2-0x0000000004E90000-0x0000000004ED0000-memory.dmp

      Filesize

      256KB

    • memory/2068-0-0x0000000001110000-0x00000000011B2000-memory.dmp

      Filesize

      648KB

    • memory/2068-3-0x0000000000390000-0x00000000003A8000-memory.dmp

      Filesize

      96KB

    • memory/2068-4-0x0000000074770000-0x0000000074E5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2068-5-0x0000000004E90000-0x0000000004ED0000-memory.dmp

      Filesize

      256KB

    • memory/2816-26-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-16-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-18-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-30-0x0000000074770000-0x0000000074E5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2816-31-0x00000000005F0000-0x0000000000630000-memory.dmp

      Filesize

      256KB

    • memory/2816-19-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-22-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-24-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2816-14-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2816-38-0x0000000074770000-0x0000000074E5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2816-39-0x00000000005F0000-0x0000000000630000-memory.dmp

      Filesize

      256KB