Analysis

  • max time kernel
    136s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 17:31

General

  • Target

    INVOICE COPY.exe

  • Size

    650KB

  • MD5

    c64c2a89d124e9185d312b3f880b31d9

  • SHA1

    cb98b08b3954f8c596762a9d571006bc077612e0

  • SHA256

    8dd68257e8d07b2e0d25da886cdb7cb487085b99a469984369d486812596ea12

  • SHA512

    92c0be639e432691a58c220e015987f77755703c4f936480befd3c035ff4386ad20734a936d21921c3fc5bfa3cc4e1be6288756fc24e10147305621d34bbb472

  • SSDEEP

    12288:iq5nF8ME6jD/GYVZBzN0SeawOHlB+GrgetMtZeF3KKprWeb25LfYOghi:iqPtD/Gez03awaDrgeWtZeNr6eaLQOu

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yvygyKkUYqKa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD67A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:208
    • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2gcubtvg.gnq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD67A.tmp

    Filesize

    1KB

    MD5

    c8f18246aeeca85d4d7ed95b69924809

    SHA1

    dde528022c022ae946ea68a9064092d3c0340d34

    SHA256

    a850c81fbfe84fb0ca9924bc0088976653f2849b017219cbf814f05be408698a

    SHA512

    15fe87df688b985a018dc5f3a69d77b3a01c815ae17097ee7942a9bcf1bfee09278780da24e3358ff6dc147a2dc40bb2a2cf286a7826cb156324d3b9a2655d88

  • memory/1672-59-0x0000000007FE0000-0x000000000865A000-memory.dmp

    Filesize

    6.5MB

  • memory/1672-63-0x0000000007BA0000-0x0000000007BB1000-memory.dmp

    Filesize

    68KB

  • memory/1672-57-0x0000000007670000-0x0000000007713000-memory.dmp

    Filesize

    652KB

  • memory/1672-46-0x00000000759F0000-0x0000000075A3C000-memory.dmp

    Filesize

    304KB

  • memory/1672-72-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/1672-69-0x0000000007CE0000-0x0000000007CE8000-memory.dmp

    Filesize

    32KB

  • memory/1672-68-0x0000000007D00000-0x0000000007D1A000-memory.dmp

    Filesize

    104KB

  • memory/1672-45-0x0000000006C70000-0x0000000006CA2000-memory.dmp

    Filesize

    200KB

  • memory/1672-66-0x0000000007BF0000-0x0000000007BFE000-memory.dmp

    Filesize

    56KB

  • memory/1672-15-0x0000000002D60000-0x0000000002D96000-memory.dmp

    Filesize

    216KB

  • memory/1672-16-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/1672-17-0x0000000002D10000-0x0000000002D20000-memory.dmp

    Filesize

    64KB

  • memory/1672-44-0x000000007FC40000-0x000000007FC50000-memory.dmp

    Filesize

    64KB

  • memory/1672-20-0x0000000005960000-0x0000000005F88000-memory.dmp

    Filesize

    6.2MB

  • memory/1672-43-0x0000000002D10000-0x0000000002D20000-memory.dmp

    Filesize

    64KB

  • memory/1672-21-0x0000000002D10000-0x0000000002D20000-memory.dmp

    Filesize

    64KB

  • memory/1672-42-0x0000000006740000-0x000000000678C000-memory.dmp

    Filesize

    304KB

  • memory/1672-60-0x00000000079A0000-0x00000000079BA000-memory.dmp

    Filesize

    104KB

  • memory/1672-23-0x00000000055C0000-0x00000000055E2000-memory.dmp

    Filesize

    136KB

  • memory/1672-26-0x0000000005F90000-0x0000000005FF6000-memory.dmp

    Filesize

    408KB

  • memory/1672-27-0x0000000006000000-0x0000000006066000-memory.dmp

    Filesize

    408KB

  • memory/1672-62-0x0000000007C20000-0x0000000007CB6000-memory.dmp

    Filesize

    600KB

  • memory/1672-61-0x0000000007A10000-0x0000000007A1A000-memory.dmp

    Filesize

    40KB

  • memory/1672-67-0x0000000007C00000-0x0000000007C14000-memory.dmp

    Filesize

    80KB

  • memory/1672-56-0x0000000006C50000-0x0000000006C6E000-memory.dmp

    Filesize

    120KB

  • memory/1672-40-0x0000000006070000-0x00000000063C4000-memory.dmp

    Filesize

    3.3MB

  • memory/1672-41-0x00000000053F0000-0x000000000540E000-memory.dmp

    Filesize

    120KB

  • memory/3832-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3832-64-0x00000000072A0000-0x00000000072F0000-memory.dmp

    Filesize

    320KB

  • memory/3832-65-0x00000000074C0000-0x0000000007682000-memory.dmp

    Filesize

    1.8MB

  • memory/3832-30-0x0000000005640000-0x0000000005650000-memory.dmp

    Filesize

    64KB

  • memory/3832-73-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-28-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-74-0x0000000005640000-0x0000000005650000-memory.dmp

    Filesize

    64KB

  • memory/4972-2-0x0000000005100000-0x00000000056A4000-memory.dmp

    Filesize

    5.6MB

  • memory/4972-0-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-19-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-29-0x0000000075190000-0x0000000075940000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-24-0x0000000004A60000-0x0000000004A70000-memory.dmp

    Filesize

    64KB

  • memory/4972-1-0x0000000000030000-0x00000000000D8000-memory.dmp

    Filesize

    672KB

  • memory/4972-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp

    Filesize

    584KB

  • memory/4972-10-0x0000000005ED0000-0x0000000005F6C000-memory.dmp

    Filesize

    624KB

  • memory/4972-9-0x00000000073F0000-0x000000000745A000-memory.dmp

    Filesize

    424KB

  • memory/4972-8-0x0000000005DD0000-0x0000000005DDA000-memory.dmp

    Filesize

    40KB

  • memory/4972-7-0x0000000005CC0000-0x0000000005CC8000-memory.dmp

    Filesize

    32KB

  • memory/4972-6-0x00000000050E0000-0x00000000050F8000-memory.dmp

    Filesize

    96KB

  • memory/4972-5-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

    Filesize

    40KB

  • memory/4972-4-0x0000000004A60000-0x0000000004A70000-memory.dmp

    Filesize

    64KB