Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2024 16:02

General

  • Target

    Purchase Inquiry List.exe

  • Size

    645KB

  • MD5

    a43ba259c860a31a93e7d2f0ea2576f7

  • SHA1

    80ce37bbc15e052759334a8bde1ef71c5f0b79fd

  • SHA256

    3730cb53c74ac925b65e3c43e603f1a2664d5b06d1c9239403a7178ce9c3e4e0

  • SHA512

    3e01fd59b33fb9fb340058a17d862b6e3fa7e6d7f2ec42c728193d8ff2d9e73bb86fecaa16079c7c8ce350eb75043c7f6230bb8f214b9584896f418d8c0a7059

  • SSDEEP

    12288:UxkjLBJI3n9hGqTWs0zwzeh1TNCmAIyeL1JyMlfeMgu4tgOZ+VDKgDbypx:fjrunAs0zwzehfnAIyeLnJZgu4z+nbyz

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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\Purchase Inquiry List.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry List.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry List.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry List.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1700-0-0x0000000000F20000-0x0000000000FC8000-memory.dmp
    Filesize

    672KB

  • memory/1700-1-0x0000000074760000-0x0000000074E4E000-memory.dmp
    Filesize

    6.9MB

  • memory/1700-2-0x0000000004FB0000-0x0000000004FF0000-memory.dmp
    Filesize

    256KB

  • memory/1700-3-0x0000000000480000-0x0000000000498000-memory.dmp
    Filesize

    96KB

  • memory/1700-4-0x00000000004B0000-0x00000000004B8000-memory.dmp
    Filesize

    32KB

  • memory/1700-5-0x00000000004C0000-0x00000000004CC000-memory.dmp
    Filesize

    48KB

  • memory/1700-6-0x0000000005E10000-0x0000000005E8C000-memory.dmp
    Filesize

    496KB

  • memory/1700-19-0x0000000074760000-0x0000000074E4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2764-8-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-9-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-11-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2764-14-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-16-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-7-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2764-21-0x0000000004A50000-0x0000000004A90000-memory.dmp
    Filesize

    256KB

  • memory/2764-20-0x0000000074760000-0x0000000074E4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2764-23-0x0000000074760000-0x0000000074E4E000-memory.dmp
    Filesize

    6.9MB