Analysis

  • max time kernel
    120s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-05-2024 14:34

General

  • Target

    RFQ10675000162Doc.7z

  • Size

    1.7MB

  • MD5

    2471e9d267119c5e303ac4ba7cf13806

  • SHA1

    9a3bba80df896eaf7e7e3cd77ffb50a2ff1d2d6a

  • SHA256

    00e715ce64eb10038453c97389c966f1940251b4422bc488b782fd8af4c761ed

  • SHA512

    3eef3cb75acf7875a7d62ef88177ee6f0287f1022a50085dcb997e119a6c4091e539912e81bafc0f093fbf1867f61a29950aedb591e8a57103d3179171e31923

  • SSDEEP

    49152:/hCphg4tRB+dFk6toKYB1j2Ca608LI/JoCROC:/hCpL+db2KmVgCI3R/

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#.

  • Executes dropped EXE 2 IoCs
  • 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\RFQ10675000162Doc.7z
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\RFQ10675000162Doc.7z"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Users\Admin\AppData\Local\Temp\7zO40A72986\RFQ10675000162.exe
        "C:\Users\Admin\AppData\Local\Temp\7zO40A72986\RFQ10675000162.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2596
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3116
      • C:\Users\Admin\AppData\Local\Temp\7zO40A4EAF6\RFQ10675000162.exe
        "C:\Users\Admin\AppData\Local\Temp\7zO40A4EAF6\RFQ10675000162.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zO40A72986\RFQ10675000162.exe

    Filesize

    4.6MB

    MD5

    bdac6ecf5c7f3ae57414eb01e643f96b

    SHA1

    a931d7d7b4471c39e37c14369373aa0bc4d5ad2e

    SHA256

    50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a

    SHA512

    9a021ae8bf9bb33a7055224bc50a7206bc16fc2358299b52b31837c106195eec4c1695260307a7a95c919d3fd9cb21c28112ed3c9f9c51490191ee0b4159a27e

  • memory/1836-9848-0x0000000000090000-0x00000000000D2000-memory.dmp

    Filesize

    264KB

  • memory/2596-4918-0x0000000002530000-0x000000000259C000-memory.dmp

    Filesize

    432KB

  • memory/2596-97-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-45-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-75-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-51-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-71-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-99-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-73-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-95-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-93-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-91-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-89-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-87-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-85-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-83-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-81-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-79-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-77-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-37-0x0000000006110000-0x0000000006340000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-4919-0x0000000000910000-0x000000000095C000-memory.dmp

    Filesize

    304KB

  • memory/2596-47-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-38-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-101-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-69-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-67-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-65-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-63-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-61-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-59-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-4920-0x0000000002320000-0x0000000002374000-memory.dmp

    Filesize

    336KB

  • memory/2596-57-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-55-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-53-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-49-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-43-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-42-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-39-0x0000000006110000-0x000000000633A000-memory.dmp

    Filesize

    2.2MB

  • memory/2596-36-0x0000000000160000-0x0000000000604000-memory.dmp

    Filesize

    4.6MB

  • memory/3116-4946-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3188-4947-0x00000000010C0000-0x0000000001564000-memory.dmp

    Filesize

    4.6MB

  • memory/3188-9828-0x0000000000FB0000-0x0000000001004000-memory.dmp

    Filesize

    336KB