Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 01:24

General

  • Target

    ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe

  • Size

    622KB

  • MD5

    1e8ecb9d9a5327abd414a0195c523628

  • SHA1

    358da33c9b8f0334a835ecb910e22359e718a7bc

  • SHA256

    ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490

  • SHA512

    7c7ece4b3c052a33994ed38a77e2b200b26c31232f258ff0f4f6166bb6d031c80e3052697b6645fd57e420827d5a9e54a8b4989ebf88c218cf00e27b471b6ed1

  • SSDEEP

    12288:ra5WGDPMJfniGQaw9TPs39kSmeC2xeVyaEX3nXUD51rx:Z9/rjMPs3VK2xeVpEnkl1

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6510566783:AAEqx5Uod2gO5hHDZ1xznAnHyO5uFneWegY/

Signatures

  • AgentTesla

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

  • 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 2 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe
    "C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lUaPONLS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2052
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lUaPONLS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp421F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2656
    • C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe
      "C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe"
      2⤵
        PID:2748
      • C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe
        "C:\Users\Admin\AppData\Local\Temp\ed23f75c269f80d52f41bed70deb30ad4429268db9792f770f6b609c03480490.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2984

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp421F.tmp
      Filesize

      1KB

      MD5

      47da611057c5e0a3b5bb80c192d6f699

      SHA1

      68d4199949f31d2624456703ef8a1e7093fe1f9c

      SHA256

      34d55e89f51078da201b3417f2ea6979816fd2ff4de58cba21e882ee59b10a6c

      SHA512

      61dd44b15bdb0027812f0023cd56788f6e4994933234065b0f6f6e662ad62476593a6a5d8347c4772fbb2ed0c4f841ec772b764d6ecda3ef9831de304737f4c0

    • memory/2052-30-0x000000006EA40000-0x000000006EFEB000-memory.dmp
      Filesize

      5.7MB

    • memory/2052-27-0x000000006EA40000-0x000000006EFEB000-memory.dmp
      Filesize

      5.7MB

    • memory/2052-28-0x0000000001D40000-0x0000000001D80000-memory.dmp
      Filesize

      256KB

    • memory/2052-29-0x000000006EA40000-0x000000006EFEB000-memory.dmp
      Filesize

      5.7MB

    • memory/2052-26-0x0000000001D40000-0x0000000001D80000-memory.dmp
      Filesize

      256KB

    • memory/2872-24-0x00000000745B0000-0x0000000074C9E000-memory.dmp
      Filesize

      6.9MB

    • memory/2872-3-0x0000000000240000-0x0000000000252000-memory.dmp
      Filesize

      72KB

    • memory/2872-0-0x0000000000B30000-0x0000000000BD0000-memory.dmp
      Filesize

      640KB

    • memory/2872-2-0x0000000000360000-0x00000000003A0000-memory.dmp
      Filesize

      256KB

    • memory/2872-4-0x00000000003E0000-0x00000000003EC000-memory.dmp
      Filesize

      48KB

    • memory/2872-5-0x0000000005CB0000-0x0000000005D32000-memory.dmp
      Filesize

      520KB

    • memory/2872-1-0x00000000745B0000-0x0000000074C9E000-memory.dmp
      Filesize

      6.9MB

    • memory/2984-23-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-21-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-19-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2984-25-0x00000000745B0000-0x0000000074C9E000-memory.dmp
      Filesize

      6.9MB

    • memory/2984-16-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-13-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-15-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-14-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2984-31-0x00000000745B0000-0x0000000074C9E000-memory.dmp
      Filesize

      6.9MB