Analysis

  • max time kernel
    98s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/05/2024, 01:40

General

  • Target
    c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe
  • Size 245KB
  • Sample240514-b3nttaef62
  • SHA256 c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot1263338506:AAEo1afaqZcanZqwKGJF2HA7xr6YOHyXHtU/

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 36 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 48 IoCs
  • 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe
    "C:\Users\Admin\AppData\Local\Temp\c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Users\Admin\AppData\Local\Temp\c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe
      "C:\Users\Admin\AppData\Local\Temp\c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Users\Admin\AppData\Local\Temp\Thfppon.exe
        "C:\Users\Admin\AppData\Local\Temp\Thfppon.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5460
        • C:\Users\Admin\AppData\Local\Temp\Thfppon.exe
          "C:\Users\Admin\AppData\Local\Temp\Thfppon.exe"
          4⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:2800

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Thfppon.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Thfppon.exe.log
        • Size 805B
        • SHA256 6049be83020702896a539b5c8c13270add224d7b91b3ee0bebc328791b74a84b
        • MD5 SHA1 SHA512

        c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2.exe.log
        • Size 1KB
        • SHA256 e82069884dd428bd6a1c67fe00c5fa56f9c4d62b538b694694a699588f1f4ab2
        • MD5 SHA1 SHA512

        Cgshkgs.tmpdb

        • Path C:\Users\Admin\AppData\Local\Temp\Cgshkgs.tmpdb
        • Size 124KB
        • SHA256 a4cd72e529e60b5f74c50e4e5b159efaf80625f23534dd15a28203760b8b28ab
        • MD5 SHA1 SHA512 SSDEEP

        Gszgl.tmpdb

        • Path C:\Users\Admin\AppData\Local\Temp\Gszgl.tmpdb
        • Size 152KB
        • SHA256 aab0b201f392fef9fdff09e56a9d0ac33d0f68be95da270e6dab89bb1f971d8b
        • MD5 SHA1 SHA512 SSDEEP

        Thfppon.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Thfppon.exe
        • Size 2.3MB
        • SHA256 ab3f0c321894430eed1ba65eca338a0471e18ba82cdd554084ed63f36ff91dce
        • MD5 SHA1 SHA512 SSDEEP

        notepad.exe

        • Path \??\c:\users\admin\appdata\roaming\notepad.exe
        • Size 245KB
        • SHA256 c0f72ab29ef52bcaec56b606ebd53b6e19f8ea5d36a071e7985ba77f0ebd95b2
        • MD5 SHA1 SHA512 SSDEEP

        memory/2184-39-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-61-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-4-0x00000000075B0000-0x0000000007B54000-memory.dmp

        memory/2184-5-0x00000000070E0000-0x0000000007172000-memory.dmp

        memory/2184-13-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-15-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-33-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-35-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-31-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-29-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-25-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-23-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-21-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-19-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-27-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-11-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-9-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-7-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-17-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-6-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-67-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-53-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-51-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-49-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-47-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-45-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-43-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-41-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-2-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/2184-37-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-69-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-65-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-3-0x0000000006D10000-0x0000000006FFA000-memory.dmp

        memory/2184-59-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-63-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-57-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-55-0x0000000006D10000-0x0000000006FF4000-memory.dmp

        memory/2184-4886-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/2184-4888-0x0000000005470000-0x00000000054BC000-memory.dmp

        memory/2184-4887-0x0000000005850000-0x0000000005978000-memory.dmp

        memory/2184-4889-0x00000000054C0000-0x0000000005514000-memory.dmp

        memory/2184-4896-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/2184-0-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

        memory/2184-1-0x00000000000D0000-0x0000000000110000-memory.dmp

        memory/2800-12143-0x00000000009C0000-0x0000000000A02000-memory.dmp

        memory/2800-12146-0x0000000006870000-0x000000000687A000-memory.dmp

        memory/2800-12145-0x00000000067A0000-0x000000000683C000-memory.dmp

        memory/2800-12144-0x00000000066B0000-0x0000000006700000-memory.dmp

        memory/3484-4894-0x0000000000700000-0x00000000007D8000-memory.dmp

        memory/3484-7191-0x0000000005790000-0x00000000057F6000-memory.dmp

        memory/3484-7245-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/3484-7251-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/3484-7188-0x0000000004D60000-0x0000000004DFE000-memory.dmp

        memory/3484-4895-0x00000000012C0000-0x00000000013D6000-memory.dmp

        memory/3484-7189-0x00000000050F0000-0x0000000005160000-memory.dmp

        memory/3484-7190-0x0000000005580000-0x000000000558A000-memory.dmp

        memory/3484-7192-0x0000000006770000-0x00000000067EA000-memory.dmp

        memory/3484-4932-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/5460-12135-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/5460-7252-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/5460-12142-0x0000000074C80000-0x0000000075430000-memory.dmp

        memory/5460-12136-0x0000000005DB0000-0x0000000005E1C000-memory.dmp

        memory/5460-7250-0x0000000000BD0000-0x0000000000E22000-memory.dmp

        memory/5460-7253-0x0000000005800000-0x0000000005A30000-memory.dmp

        memory/5460-12134-0x0000000074C80000-0x0000000075430000-memory.dmp