Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-ja
  • resource tags

    arch:x64arch:x86image:win7-20240419-jalocale:ja-jpos:windows7-x64systemwindows
  • submitted
    10-06-2024 00:43

General

  • Target

    Ship Docs YINGHAI-MANE PO 240786/Ship Docs YINGHAI-MANE PO 240786.xlsx.exe

  • Size

    390KB

  • MD5

    9ad1097ef6d23a86d4b9327e54fdc9bc

  • SHA1

    517d09c1d755f08f3c5bf073d87185a801b68907

  • SHA256

    df9e1f7fa8d1badaa7afd42cc3aac4ef5aad3a9973ee71059599325284566e67

  • SHA512

    1ea9293a6931e191b1c63537fc5ea003e8ae98d53242a711769052bf9ba1976def2bb5f7894f85a0da087c0a4354a68474268da77d8438cfbb0a04299df7c955

  • SSDEEP

    6144:nG8/Pl5W2KYbjOrq1NijSchoiEC8IjhJwJpNhCF5qGI3f2nwf0F4eQhrt/bcnAI:n2rgijP7EHEsvNhC7IfBbhrt4T

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://s4.serv00.com
  • Port:
    21
  • Username:
    f2241_dol
  • Password:
    Doll900#@

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 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ship Docs YINGHAI-MANE PO 240786\Ship Docs YINGHAI-MANE PO 240786.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\Ship Docs YINGHAI-MANE PO 240786\Ship Docs YINGHAI-MANE PO 240786.xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\Ship Docs YINGHAI-MANE PO 240786\Ship Docs YINGHAI-MANE PO 240786.xlsx.exe
      "C:\Users\Admin\AppData\Local\Temp\Ship Docs YINGHAI-MANE PO 240786\Ship Docs YINGHAI-MANE PO 240786.xlsx.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3040-0-0x0000000000EA0000-0x0000000000F06000-memory.dmp

    Filesize

    408KB

  • memory/3040-1-0x00000000747DE000-0x00000000747DF000-memory.dmp

    Filesize

    4KB

  • memory/3040-15-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3068-4-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-6-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-2-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3068-16-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-17-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-20-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB