Analysis

  • max time kernel
    92s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 13:27

General

  • Target

    SecuriteInfo.com.Win64.TrojanX-gen.24429.31258.exe

  • Size

    40KB

  • MD5

    26c95e5acba77d7fd14d109c94f75cca

  • SHA1

    56359d96cd63d66b51eb49acd46d8df25f170c30

  • SHA256

    32272f676a500007b4321f7c076ec3169305615e230dad3d89c63e0cfd24c1c6

  • SHA512

    6b2bd0a6240a13b641d005dc34cd364fd5eb2bb861d49d33bf826766ea0daf4a264f1182905363720b6a8bfad03d97386e965863578e57cf2cf5403d1309363a

  • SSDEEP

    768:1pc7ngE+7L+Phy83dWrz7lwHZjl7GdoUNIBBv5r:1Aj+7100rz7lwHj7QSBvJ

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Contacts a large (4464) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.TrojanX-gen.24429.31258.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.TrojanX-gen.24429.31258.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:6216

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1808-10-0x0000018BB5180000-0x0000018BB5190000-memory.dmp

          Filesize

          64KB

        • memory/1808-12-0x00007FFEA48A0000-0x00007FFEA5361000-memory.dmp

          Filesize

          10.8MB

        • memory/1808-2-0x0000018BB5180000-0x0000018BB5190000-memory.dmp

          Filesize

          64KB

        • memory/1808-3-0x0000018BB52F0000-0x0000018BB5499000-memory.dmp

          Filesize

          1.7MB

        • memory/1808-5-0x00007FFEA48A0000-0x00007FFEA5361000-memory.dmp

          Filesize

          10.8MB

        • memory/1808-6-0x0000018BB80E0000-0x0000018BB8176000-memory.dmp

          Filesize

          600KB

        • memory/1808-0-0x0000018B9AC00000-0x0000018B9AC0E000-memory.dmp

          Filesize

          56KB

        • memory/1808-11-0x0000018BB52F0000-0x0000018BB5499000-memory.dmp

          Filesize

          1.7MB

        • memory/1808-1-0x00007FFEA48A0000-0x00007FFEA5361000-memory.dmp

          Filesize

          10.8MB

        • memory/6216-7-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/6216-13-0x00000000745B0000-0x0000000074D60000-memory.dmp

          Filesize

          7.7MB

        • memory/6216-14-0x0000000005940000-0x0000000005EE4000-memory.dmp

          Filesize

          5.6MB

        • memory/6216-15-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB

        • memory/6216-16-0x00000000052D0000-0x0000000005336000-memory.dmp

          Filesize

          408KB

        • memory/6216-17-0x00000000065A0000-0x00000000065F0000-memory.dmp

          Filesize

          320KB

        • memory/6216-18-0x0000000006690000-0x0000000006722000-memory.dmp

          Filesize

          584KB

        • memory/6216-19-0x0000000006620000-0x000000000662A000-memory.dmp

          Filesize

          40KB

        • memory/6216-20-0x00000000745B0000-0x0000000074D60000-memory.dmp

          Filesize

          7.7MB

        • memory/6216-21-0x0000000005380000-0x0000000005390000-memory.dmp

          Filesize

          64KB