Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 01:33

General

  • Target

    CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe

  • Size

    778KB

  • MD5

    4fd5ae8446fc97f481011ebe56bee23b

  • SHA1

    438e310a2a92cc1d889c29dada25d9a15ffbf0eb

  • SHA256

    6927f5860d17522a78a4e93599a9dc4230fa920f37665c5775250d02e18e9568

  • SHA512

    f2fdb70e40f889e0bd86b6527e5ceb28a224e2cb0ec71c7192d5e6fb2c855a12510f109f6132521a877dd71c35d972990a5b19412bbea5d9034628cc1178fc36

  • SSDEEP

    12288:j7jnKo7r7xDKW49kF9rIz38om4LsI0nF/dBhdRfviOxbCDTh5F:j7Wo7vNK9gNe8oBqF1TXfviW2Dt5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.normagroup.com.tr
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Qb.X[.j.Yfm[

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe
    "C:\Users\Admin\AppData\Local\Temp\CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2336
    • 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\CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Users\Admin\AppData\Local\Temp\CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe
      "C:\Users\Admin\AppData\Local\Temp\CN-Statement of Accounts and ETax-OB-XXXXX6856-03012824201808801.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2336-0-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/2336-1-0x0000000000E00000-0x0000000000EC8000-memory.dmp

    Filesize

    800KB

  • memory/2336-2-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2336-3-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/2336-4-0x0000000000800000-0x0000000000812000-memory.dmp

    Filesize

    72KB

  • memory/2336-5-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2336-6-0x00000000056F0000-0x0000000005774000-memory.dmp

    Filesize

    528KB

  • memory/2336-19-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-8-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-17-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-13-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2836-10-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-9-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-7-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2836-18-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-20-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-23-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB