Analysis

  • max time kernel
    112s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 08:02

General

  • Target

    Uqzqkjvjt.exe

  • Size

    667KB

  • MD5

    d840d8828c7d653df6e528c5839c58e1

  • SHA1

    2200c0209a437889afe3b268301fdfc467b70fd7

  • SHA256

    4a27c12a8f4fb92e14521406e64dee16c6e888ba8de479b56d273241f514883b

  • SHA512

    1fa04c5285db39fd177d6e5498d5af7e60bfb3446d9b756acfeed0d86121dd0e037feed483362a2a790e63a4559b073231147c4f974603be959327c286a6b608

  • SSDEEP

    12288:8JCwrKHetRgFqSFa7y0iL/M8GXem/rZcsMW2g7dyEL3uG5:aCJH3PTtD0/dclW20d+

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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 2 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe
    "C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
        PID:3652
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2156

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2156-935-0x0000000075330000-0x0000000075AE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2156-934-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2156-937-0x00000000054A0000-0x0000000005506000-memory.dmp

      Filesize

      408KB

    • memory/2156-936-0x0000000005390000-0x00000000053A0000-memory.dmp

      Filesize

      64KB

    • memory/2156-939-0x0000000006740000-0x0000000006790000-memory.dmp

      Filesize

      320KB

    • memory/2156-943-0x0000000005390000-0x00000000053A0000-memory.dmp

      Filesize

      64KB

    • memory/2156-942-0x0000000075330000-0x0000000075AE0000-memory.dmp

      Filesize

      7.7MB

    • memory/2156-941-0x00000000067D0000-0x00000000067DA000-memory.dmp

      Filesize

      40KB

    • memory/2156-940-0x0000000006830000-0x00000000068C2000-memory.dmp

      Filesize

      584KB

    • memory/4352-45-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-61-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-9-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-15-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-13-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-21-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-23-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-19-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-17-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-25-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-5-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-27-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-29-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-4-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-39-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-7-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-53-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-59-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-65-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-67-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-63-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-11-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-57-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-55-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-51-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-49-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-47-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-43-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-41-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-37-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-35-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-33-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-31-0x00000000054E0000-0x0000000005583000-memory.dmp

      Filesize

      652KB

    • memory/4352-3-0x0000000005460000-0x0000000005470000-memory.dmp

      Filesize

      64KB

    • memory/4352-2-0x00000000054E0000-0x000000000558A000-memory.dmp

      Filesize

      680KB

    • memory/4352-1-0x0000000000A80000-0x0000000000B2E000-memory.dmp

      Filesize

      696KB

    • memory/4352-0-0x0000000075330000-0x0000000075AE0000-memory.dmp

      Filesize

      7.7MB

    • memory/4352-926-0x0000000005450000-0x0000000005451000-memory.dmp

      Filesize

      4KB

    • memory/4352-927-0x00000000055F0000-0x0000000005632000-memory.dmp

      Filesize

      264KB

    • memory/4352-928-0x0000000005630000-0x000000000567C000-memory.dmp

      Filesize

      304KB

    • memory/4352-929-0x0000000006020000-0x00000000065C4000-memory.dmp

      Filesize

      5.6MB

    • memory/4352-933-0x0000000075330000-0x0000000075AE0000-memory.dmp

      Filesize

      7.7MB