Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 08:05

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 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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 use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3780
    • 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:2020
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 2096
        3⤵
        • Program crash
        PID:4016
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2020 -ip 2020
    1⤵
      PID:4544

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2020-935-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2020-939-0x0000000074940000-0x00000000750F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2020-934-0x0000000074940000-0x00000000750F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2020-936-0x0000000005970000-0x0000000005980000-memory.dmp

      Filesize

      64KB

    • memory/2020-937-0x00000000059F0000-0x0000000005A56000-memory.dmp

      Filesize

      408KB

    • memory/3780-41-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-43-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-13-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-21-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-23-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-25-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-33-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-37-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-35-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-31-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-29-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-27-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-19-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-17-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-15-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-11-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-9-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-0-0x00000000009C0000-0x0000000000A6E000-memory.dmp

      Filesize

      696KB

    • memory/3780-47-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-49-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-45-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-7-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-57-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-67-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-65-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-63-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-61-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-59-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-55-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-53-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-51-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-39-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-926-0x00000000053F0000-0x00000000053F1000-memory.dmp

      Filesize

      4KB

    • memory/3780-927-0x0000000005520000-0x0000000005562000-memory.dmp

      Filesize

      264KB

    • memory/3780-928-0x0000000005560000-0x00000000055AC000-memory.dmp

      Filesize

      304KB

    • memory/3780-929-0x0000000005F50000-0x00000000064F4000-memory.dmp

      Filesize

      5.6MB

    • memory/3780-4-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-5-0x0000000005460000-0x0000000005503000-memory.dmp

      Filesize

      652KB

    • memory/3780-3-0x0000000005450000-0x0000000005460000-memory.dmp

      Filesize

      64KB

    • memory/3780-2-0x0000000005460000-0x000000000550A000-memory.dmp

      Filesize

      680KB

    • memory/3780-933-0x0000000074940000-0x00000000750F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3780-1-0x0000000074940000-0x00000000750F0000-memory.dmp

      Filesize

      7.7MB