Analysis

  • max time kernel
    48s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    09-01-2023 19:45

General

  • Target

    VSvhnWEKx73w8nP.exe

  • Size

    976KB

  • MD5

    1b260daf9d2f783e02a2b9831e57eff9

  • SHA1

    4bf3d43df112424bd92c1873ed2a0512f4988ca5

  • SHA256

    72ad163429af1e34f7af32cabe4b86df4d27d3205f2e9523ed4c5b409b9fce5f

  • SHA512

    06054c26370c2db8cb2a732c3477351fd4786eaab6432a48eb5d68ba528878ff618994b2068d803d52ddd799bf60a49bd1d89d7b8ceb08574c52e9d3888bdbe7

  • SSDEEP

    24576:Lp41mgWuuJ/Gmz4aiwRehRwvaQ5fmyXtCqG8VE0DcxE:CHuJ/saiwRLaO+oCqG8VPz

Malware Config

Extracted

Family

agenttesla

Credentials

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
  • 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
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VSvhnWEKx73w8nP.exe
    "C:\Users\Admin\AppData\Local\Temp\VSvhnWEKx73w8nP.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Users\Admin\AppData\Local\Temp\VSvhnWEKx73w8nP.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1492

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/852-54-0x00000000012A0000-0x000000000139A000-memory.dmp

    Filesize

    1000KB

  • memory/852-55-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

    Filesize

    8KB

  • memory/852-56-0x00000000006D0000-0x00000000006DE000-memory.dmp

    Filesize

    56KB

  • memory/852-57-0x0000000005C40000-0x0000000005CDC000-memory.dmp

    Filesize

    624KB

  • memory/852-58-0x0000000000C30000-0x0000000000C8A000-memory.dmp

    Filesize

    360KB

  • memory/1492-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-65-0x0000000000437CAE-mapping.dmp

  • memory/1492-67-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1492-69-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB