Analysis

  • max time kernel
    50s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2023, 07:41

General

  • Target

    Payment copy.exe

  • Size

    635KB

  • MD5

    758739dc69bea1dbffeb64a16adbba73

  • SHA1

    5ab3aac44c8bc50082ad557df368549a3c10e7e4

  • SHA256

    dcbf2a46595f5714137faa5d4950067eb1b1e5259c2bce2a75f853a73303d45f

  • SHA512

    2096fddf3b59a51673ab236964866699ac20522fe19c084c03cf9368a9154ef393d0a731b9c653bfdaeba9e393f0eb3320cee70abbba5935fa28ce528d2dfa00

  • SSDEEP

    12288:UnE5BhWH78QM8F2yf8mnpA9JXKBO4wl363Y8fo:UnE5KbXPddA3XGW363YKo

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5663632223:AAG5KHZDs7KWoaqTYx3lSyFlOdfD9vGegQo/

Signatures

  • AgentTesla

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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). 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 use of AdjustPrivilegeToken 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\Payment copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ToLzCL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC276.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1728
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1056

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpC276.tmp

          Filesize

          1KB

          MD5

          3adcc39fac29ad9a5429528481130aec

          SHA1

          ab3d881c671d113a370609ddab1f532e9de45502

          SHA256

          7cf1e6d73d75cf66b191f0c6f053e318f6c4949e2f0e4a98c81a3f5a07730bfd

          SHA512

          50a689a383c5b733be03ee34ea51692d941136630402a81038607e52f33a75de9aefe8ecef41c5bc24f9b852b051aecf2af57a545ab1b914afe97425dcd324a4

        • memory/1056-69-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-62-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-91-0x0000000004D60000-0x0000000004DA0000-memory.dmp

          Filesize

          256KB

        • memory/1056-72-0x0000000004D60000-0x0000000004DA0000-memory.dmp

          Filesize

          256KB

        • memory/1056-71-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-63-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-65-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-67-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-64-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/1056-66-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

          Filesize

          4KB

        • memory/1408-56-0x0000000000390000-0x000000000039C000-memory.dmp

          Filesize

          48KB

        • memory/1408-54-0x0000000001180000-0x0000000001226000-memory.dmp

          Filesize

          664KB

        • memory/1408-55-0x0000000004CF0000-0x0000000004D30000-memory.dmp

          Filesize

          256KB

        • memory/1408-58-0x0000000000AE0000-0x0000000000B10000-memory.dmp

          Filesize

          192KB

        • memory/1408-57-0x00000000053B0000-0x0000000005430000-memory.dmp

          Filesize

          512KB