Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2023, 08:16

General

  • Target

    Transferencia.exe

  • Size

    624KB

  • MD5

    6c69b1778096564e9926f9cab8600031

  • SHA1

    39592861740092bbfe0bcb632b0bc55fbde58ab1

  • SHA256

    850ce005298ab95b563a50c0b95618d97bc4696e3fffddf12b06c25bf933bfb0

  • SHA512

    ad501fd2ccf52740dc0c64bef085551f840f926b2f721923016ad0021420d541de2ec4f2298a1ef99715834aa13bf55717c3849f1c48f6da156d95e8c90ff5e4

  • SSDEEP

    12288:hPYPfY7fsbKjfK9yK2kVM7Ta/UO42LMW2lNDCxNZP:hPYPgwbKjGyK2j6UqMWENDk

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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
    "C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Users\Admin\AppData\Local\Temp\Transferencia.exe
      "C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Transferencia.exe.log

    Filesize

    1KB

    MD5

    765cff098b629b1eb49e3ef981f7001a

    SHA1

    32b7ade1f746d013371141dcebd96e0bb3faeef3

    SHA256

    ee17be860e129795491b4be61f5ac446b16f2679e056114024ffc72b2e23a9b7

    SHA512

    ca2d2ddafc2dcbeab2c93f039bdbc567d4c9e0457e741e71c432b7461a1a8165891f22112ff1b57004ba51271899555fbf001db17d2dc748bafc608817bd9474

  • memory/400-147-0x0000000074990000-0x0000000075140000-memory.dmp

    Filesize

    7.7MB

  • memory/400-134-0x0000000074990000-0x0000000075140000-memory.dmp

    Filesize

    7.7MB

  • memory/400-136-0x00000000056C0000-0x0000000005752000-memory.dmp

    Filesize

    584KB

  • memory/400-133-0x0000000000C90000-0x0000000000D30000-memory.dmp

    Filesize

    640KB

  • memory/400-138-0x0000000005890000-0x000000000589A000-memory.dmp

    Filesize

    40KB

  • memory/400-139-0x0000000005AB0000-0x0000000005C56000-memory.dmp

    Filesize

    1.6MB

  • memory/400-140-0x0000000074990000-0x0000000075140000-memory.dmp

    Filesize

    7.7MB

  • memory/400-141-0x00000000056B0000-0x00000000056C0000-memory.dmp

    Filesize

    64KB

  • memory/400-135-0x0000000005D30000-0x00000000062D4000-memory.dmp

    Filesize

    5.6MB

  • memory/400-142-0x0000000009760000-0x00000000097FC000-memory.dmp

    Filesize

    624KB

  • memory/400-137-0x00000000056B0000-0x00000000056C0000-memory.dmp

    Filesize

    64KB

  • memory/4848-146-0x0000000074990000-0x0000000075140000-memory.dmp

    Filesize

    7.7MB

  • memory/4848-148-0x0000000005160000-0x0000000005170000-memory.dmp

    Filesize

    64KB

  • memory/4848-149-0x00000000050D0000-0x0000000005136000-memory.dmp

    Filesize

    408KB

  • memory/4848-143-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4848-152-0x00000000068A0000-0x00000000068F0000-memory.dmp

    Filesize

    320KB

  • memory/4848-153-0x0000000006AC0000-0x0000000006C82000-memory.dmp

    Filesize

    1.8MB

  • memory/4848-163-0x0000000074990000-0x0000000075140000-memory.dmp

    Filesize

    7.7MB

  • memory/4848-164-0x0000000005160000-0x0000000005170000-memory.dmp

    Filesize

    64KB