Analysis

  • max time kernel
    117s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:18

General

  • Target

    2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe

  • Size

    771KB

  • MD5

    1433df7a0c7d30eccc2973886763dd3c

  • SHA1

    5524fd6fad6327287aefb807db8aca267ef81b23

  • SHA256

    2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a

  • SHA512

    c717cde6ebb72c81dd7af08aec4e18a99c667481746618b6e6122dc88d90f9c0e687e8e31c77d730b9fdabac25346bf716fc57712bfee9ae114be56c2030449f

  • SSDEEP

    12288:t7spRsB6mNbI4sdgeMPHqwIR8jfkS5yZ8mZOduX6Pf/Jx8RTVUizeV:GpRsv5I4sivPARIJ50ROdA6PXkv

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 10 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\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe
    "C:\Users\Admin\AppData\Local\Temp\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aiJeBnYkReqdHp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2556
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aiJeBnYkReqdHp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp71C6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe
      "C:\Users\Admin\AppData\Local\Temp\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe"
      2⤵
        PID:2448
      • C:\Users\Admin\AppData\Local\Temp\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe
        "C:\Users\Admin\AppData\Local\Temp\2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2808

    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\tmp71C6.tmp
      Filesize

      1KB

      MD5

      5bce1bb79d51e7a57da08e0219215845

      SHA1

      4e01d117bfe92e3904bcc02da61a68277f668fe1

      SHA256

      fa9321f49547d8d33590d7e310ae9dec7bf03c89bbbdd80e813e8893bcf0f70c

      SHA512

      012d0b0ef2ca2b3ced5c508bf33512d7bbb1cb7ae852529921f730805da4b1b0dfcd035028e14681bcd5880466cc1775c0d410e13b61195f0c132c9cdbf200eb

    • memory/2300-19-0x00000000741A0000-0x000000007488E000-memory.dmp
      Filesize

      6.9MB

    • memory/2300-1-0x00000000741A0000-0x000000007488E000-memory.dmp
      Filesize

      6.9MB

    • memory/2300-2-0x0000000000960000-0x00000000009A0000-memory.dmp
      Filesize

      256KB

    • memory/2300-3-0x00000000003B0000-0x00000000003CA000-memory.dmp
      Filesize

      104KB

    • memory/2300-4-0x00000000003E0000-0x00000000003EC000-memory.dmp
      Filesize

      48KB

    • memory/2300-5-0x0000000005170000-0x00000000051F2000-memory.dmp
      Filesize

      520KB

    • memory/2300-0-0x0000000000820000-0x00000000008E6000-memory.dmp
      Filesize

      792KB

    • memory/2556-29-0x000000006F1F0000-0x000000006F79B000-memory.dmp
      Filesize

      5.7MB

    • memory/2556-28-0x0000000002370000-0x00000000023B0000-memory.dmp
      Filesize

      256KB

    • memory/2556-27-0x000000006F1F0000-0x000000006F79B000-memory.dmp
      Filesize

      5.7MB

    • memory/2556-26-0x000000006F1F0000-0x000000006F79B000-memory.dmp
      Filesize

      5.7MB

    • memory/2808-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2808-22-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-20-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-25-0x0000000074120000-0x000000007480E000-memory.dmp
      Filesize

      6.9MB

    • memory/2808-17-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-13-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-14-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-12-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB

    • memory/2808-30-0x0000000074120000-0x000000007480E000-memory.dmp
      Filesize

      6.9MB