Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-04-2024 14:34

General

  • Target

    Pre-arrival Notification.pdf.scr

  • Size

    866KB

  • MD5

    f0a78c76a0a3868087059f4f0705a9ae

  • SHA1

    1713acbb59b349c547ef73d93f39eca35610411d

  • SHA256

    bee0f2e0f50d146b489b36f71cbcbb4ee752d92f323aefa1e2a79a30afe96d2b

  • SHA512

    f2b739ee8bdffa143d1e5cb4e241907939f7abf0ac798c36a0d8c2b3b8508976940224734ec63cd7187416ff47e9e0973528be76536b9a7afec3438f8a8b571a

  • SSDEEP

    12288:/2BuuzNcMZtFxyBv1kqx8WU8Ox5iFgN3NsChO1AS7:/2BNcYtFxyBJU8I5iFgN9sCkD7

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pre-arrival Notification.pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\Pre-arrival Notification.pdf.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" 'C:\Users\Admin\AppData\Local\Temp\Pre-arrival Notification.pdf.scr' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\command-line.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2832
    • 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:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2508-24-0x0000000073F20000-0x000000007460E000-memory.dmp
    Filesize

    6.9MB

  • memory/2508-1-0x0000000073F20000-0x000000007460E000-memory.dmp
    Filesize

    6.9MB

  • memory/2508-2-0x0000000004BA0000-0x0000000004BE0000-memory.dmp
    Filesize

    256KB

  • memory/2508-3-0x0000000000620000-0x0000000000676000-memory.dmp
    Filesize

    344KB

  • memory/2508-9-0x0000000000310000-0x000000000031A000-memory.dmp
    Filesize

    40KB

  • memory/2508-0-0x0000000000CA0000-0x0000000000D7E000-memory.dmp
    Filesize

    888KB

  • memory/2832-6-0x000000006EFB0000-0x000000006F55B000-memory.dmp
    Filesize

    5.7MB

  • memory/2832-7-0x000000006EFB0000-0x000000006F55B000-memory.dmp
    Filesize

    5.7MB

  • memory/2832-8-0x0000000001DD0000-0x0000000001E10000-memory.dmp
    Filesize

    256KB

  • memory/2832-25-0x000000006EFB0000-0x000000006F55B000-memory.dmp
    Filesize

    5.7MB

  • memory/3028-10-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-14-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-21-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-19-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-23-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/3028-15-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3028-12-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB