Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 14:17

General

  • Target

    7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe

  • Size

    896KB

  • MD5

    f350551099a8fc532cb883bdc55e31bd

  • SHA1

    c757fbb281a8b883974740f6343244c54aa21c14

  • SHA256

    7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3

  • SHA512

    5dc9c5d1eb72e7060004b5415ce256a007d31c54fea1bc6d252e7680b14720e34cf53a7cabd0b49bef853f38a5e32e8f8fb5e7e38002b17a5d9bb98a94eb284e

  • SSDEEP

    24576:BRVAfJWtb3BE1lMAzY0O14gZlcT6+C1MGQvn:TDZBEEAE0a4OlKmM5vn

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe
    "C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KXKyzZjhF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KXKyzZjhF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA53.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe
      "C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe"
      2⤵
        PID:2488
      • C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe
        "C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe"
        2⤵
          PID:2836
        • C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe
          "C:\Users\Admin\AppData\Local\Temp\7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2876

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpAA53.tmp

        Filesize

        1KB

        MD5

        81f6c1e447cc072a37f200f53a81aa79

        SHA1

        e88c28d1f41b05dfdbb88e59bba69a39cffac60f

        SHA256

        3118241cca65de69215f51db5ab109497e62cd5fdfd2d15f7bb6f85794e55878

        SHA512

        fc61b4198eafcc40965b64d83562225c33eab2920ca449bfb6bd3721e673626dddf7f51b1909cda588f845786b7f8cf1f14f3699f585494e3fd698b3611bac5b

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

        Filesize

        7KB

        MD5

        ea5f916d0c4e43e55d513c787e71d0f5

        SHA1

        73c90afe309573d60e7f7795617642aa79b6b4a9

        SHA256

        e8752eb20b588f520918943900d6865fec1e52aa48b8edbfa191acd0e0bf8f88

        SHA512

        537c4bb838bd2471b5c68fde75a766e0a8404f38e2a246915e3255cd1f7cef61ecfcbccf0dcf4c1b0782b7fe398d125d1d4daee3b1ab294f138618dcff49db79

      • memory/2876-30-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-23-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-19-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2876-28-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-29-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-21-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2876-25-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/3008-6-0x0000000007430000-0x00000000074B4000-memory.dmp

        Filesize

        528KB

      • memory/3008-1-0x0000000000070000-0x0000000000152000-memory.dmp

        Filesize

        904KB

      • memory/3008-0-0x000000007465E000-0x000000007465F000-memory.dmp

        Filesize

        4KB

      • memory/3008-2-0x0000000074650000-0x0000000074D3E000-memory.dmp

        Filesize

        6.9MB

      • memory/3008-3-0x00000000006A0000-0x00000000006C2000-memory.dmp

        Filesize

        136KB

      • memory/3008-5-0x00000000006D0000-0x00000000006E0000-memory.dmp

        Filesize

        64KB

      • memory/3008-4-0x00000000006C0000-0x00000000006CC000-memory.dmp

        Filesize

        48KB

      • memory/3008-31-0x0000000074650000-0x0000000074D3E000-memory.dmp

        Filesize

        6.9MB