Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 01:54

General

  • Target

    b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe

  • Size

    1.4MB

  • MD5

    9fbf1890e0236da00be34bab1b6979c9

  • SHA1

    4d9f66bdc24dda4355870001a1e25494bb0e411c

  • SHA256

    b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314

  • SHA512

    bf827a0c4019af1aa565a82f747872bd014159dcc73fd8d76b08051026ff997b41797279544b78b2e5434fb3cd3d72405188274bb145a57a293d7051f459796e

  • SSDEEP

    24576:OUzKsG5DaqdRk6JSpu1Ho6tsPqXz+ULhOxJ/NDCB32mJ+sz+D8yKnSk6Y8anr/:fr01nz+Ucf/UB3PJ+sKgyKQrar/

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe
    "C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2824
    • 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:2800
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2824 -s 628
      2⤵
        PID:1624

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/2800-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2800-9-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-10-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-16-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-12-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-8-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-14-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2800-7-0x0000000000400000-0x0000000000442000-memory.dmp

            Filesize

            264KB

          • memory/2824-1-0x00000000001C0000-0x00000000001D0000-memory.dmp

            Filesize

            64KB

          • memory/2824-6-0x000000001ADE0000-0x000000001AE74000-memory.dmp

            Filesize

            592KB

          • memory/2824-5-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

            Filesize

            9.9MB

          • memory/2824-4-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

            Filesize

            9.9MB

          • memory/2824-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

            Filesize

            4KB

          • memory/2824-3-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

            Filesize

            9.9MB

          • memory/2824-2-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

            Filesize

            9.9MB

          • memory/2824-17-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

            Filesize

            4KB

          • memory/2824-18-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

            Filesize

            9.9MB