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Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2024, 13:59

General

  • Target

    TS-240304-UF2.exe

  • Size

    338KB

  • MD5

    915c28817d8aded7bb6b98f387dc9dd7

  • SHA1

    cb52f0363e10a7bcdccf0e12d15f2f4a15bebdb4

  • SHA256

    d192c8d38432e7a474fc0f7ae9aa569150bbb5f337444c68f77e6e74049d9912

  • SHA512

    b7daeb88da4260acb1fda43b95740495d0182c6a5721131550f208a808bf7cc8bf6ac65b866be187e6d2d5ca41e4bda62bd63387f12975eb7b383d1283e4e2b2

  • SSDEEP

    6144:PYFuQ3A4YkC0D+15e70vt7LPuVAiN91Pyx1c+5j8k5IRJ:QFuQ3An0E8+7Lm39k7BIRJ

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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TS-240304-UF2.exe
    "C:\Users\Admin\AppData\Local\Temp\TS-240304-UF2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\TS-240304-UF2.exe
      "C:\Users\Admin\AppData\Local\Temp\TS-240304-UF2.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3000-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3000-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-20-0x0000000000780000-0x00000000007C0000-memory.dmp

    Filesize

    256KB

  • memory/3000-19-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-4-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-5-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-6-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-17-0x0000000000780000-0x00000000007C0000-memory.dmp

    Filesize

    256KB

  • memory/3000-16-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3000-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3036-0-0x0000000001220000-0x000000000127A000-memory.dmp

    Filesize

    360KB

  • memory/3036-12-0x0000000074BD0000-0x00000000752BE000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-1-0x0000000074BD0000-0x00000000752BE000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-3-0x00000000003A0000-0x00000000003A1000-memory.dmp

    Filesize

    4KB

  • memory/3036-2-0x00000000011B0000-0x00000000011F0000-memory.dmp

    Filesize

    256KB