Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-06-2024 07:13

General

  • Target

    YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe

  • Size

    595KB

  • MD5

    ee4bf41b907bc392d81019a6a94949bf

  • SHA1

    0b938cc890947766c5133f46225acee30bf08bc4

  • SHA256

    15c04e22491f8e845da0adff79abd677fc12388ccea0f7c031c679ef175e3228

  • SHA512

    e3e66239827ee024217e04863f62bd6aad302f1049b4c337ba9bd14d790ec01c4c2e85c7c7a28f929f1bdde797967f6ca2f08bd32770bb319cfb378bd23e5184

  • SSDEEP

    12288:vaw2pkEVVr3/sqHj4QOnubaa4PICGZiFIYKP/7IBy:vOLTP/D4im7PICGgyVPsBy

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe
    "C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1988
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2120 -s 660
      2⤵
        PID:2616

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1988-10-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-17-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-6-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1988-5-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-13-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-8-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1988-15-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2120-1-0x00000000002C0000-0x00000000002CA000-memory.dmp

      Filesize

      40KB

    • memory/2120-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

      Filesize

      4KB

    • memory/2120-3-0x000000001B290000-0x000000001B324000-memory.dmp

      Filesize

      592KB

    • memory/2120-2-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

      Filesize

      9.9MB

    • memory/2120-18-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

      Filesize

      4KB

    • memory/2120-19-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

      Filesize

      9.9MB