Analysis

  • max time kernel
    69s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-09-2022 14:18

General

  • Target

    PO#88224.exe

  • Size

    781KB

  • MD5

    05963cbe736805e0168a5fb3d6e6ae6b

  • SHA1

    14dd852164396f3e05b6b3469263c497851f6f0c

  • SHA256

    61b7c784665ee5e76aec4437bfcf67378d075f26fbb3a0dcabce328b3778a8be

  • SHA512

    51b9207c2ccf5a6931660c623ed18a97c8a12ba0758ae891f54825114c0aa8a05ce70af42bcf8108e4835f7356e6a08d4b547d30a621cfcfb7d67ff38294fac0

  • SSDEEP

    12288:qdxsEH/ARUwqxwZNVls4QM8tOqO5c1UADqjJ5nl0+9MK:qwEoMYNbsKbc0jrZe

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5662683474:AAFvSjyPXTiwhBPcFi8of3_-_FCdfhhN8x0/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#88224.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#88224.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iiTQITmv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp732E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2036
    • C:\Users\Admin\AppData\Local\Temp\PO#88224.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp732E.tmp

    Filesize

    1KB

    MD5

    4b235668c0e1fad59f4b58675cbb15fd

    SHA1

    cc246bea96fd2daeef30cb0644c920e96b2a9bf0

    SHA256

    2ec079cc4594c70a598ea95aac0db5af75b70935748b370c91ca247665fd2a86

    SHA512

    211597600f57354dcb019caf25c971f210352fd7d65d3501d86b2831b737aee1bd4771b5152905e3688fef0e589a017ec4288475963904b0a263bfa9bbcd331c

  • memory/1936-57-0x00000000023A0000-0x0000000002424000-memory.dmp

    Filesize

    528KB

  • memory/1936-55-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

    Filesize

    8KB

  • memory/1936-54-0x0000000000A40000-0x0000000000B0A000-memory.dmp

    Filesize

    808KB

  • memory/1936-58-0x0000000000690000-0x00000000006CA000-memory.dmp

    Filesize

    232KB

  • memory/1936-56-0x00000000003B0000-0x00000000003D0000-memory.dmp

    Filesize

    128KB

  • memory/1984-66-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-61-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-62-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-64-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-65-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-67-0x0000000000435A7E-mapping.dmp

  • memory/1984-69-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1984-71-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2036-59-0x0000000000000000-mapping.dmp