Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2023 13:35

General

  • Target

    Revise 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • 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:2640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA63.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2732
    • C:\Users\Admin\AppData\Local\Temp\Revise copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAA63.tmp

    Filesize

    1KB

    MD5

    5e828b7c9d49dbbae20bee022a9b7b01

    SHA1

    3b771010a852ca7eabaaf70a03ea127015391677

    SHA256

    fcbc3a87d3c67b2418d4a747bc731a82bda8ae4b55864cdc5fe5c5a1dba78918

    SHA512

    bc370c1b470cc1402da43e283c3b611c9985f65e57bb28c57505e807948ce4dde5bebac8676cc47d1559cc3e48ee4a44c49f9877a3ffb7f1dda1519df74cd9b0

  • memory/1724-6-0x0000000004C70000-0x0000000004CDA000-memory.dmp

    Filesize

    424KB

  • memory/1724-2-0x0000000004D50000-0x0000000004D90000-memory.dmp

    Filesize

    256KB

  • memory/1724-3-0x00000000004E0000-0x00000000004F8000-memory.dmp

    Filesize

    96KB

  • memory/1724-4-0x0000000000510000-0x0000000000518000-memory.dmp

    Filesize

    32KB

  • memory/1724-5-0x0000000000520000-0x000000000052A000-memory.dmp

    Filesize

    40KB

  • memory/1724-20-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/1724-1-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/1724-0-0x0000000000E30000-0x0000000000ED8000-memory.dmp

    Filesize

    672KB

  • memory/2640-31-0x000000006F070000-0x000000006F61B000-memory.dmp

    Filesize

    5.7MB

  • memory/2640-30-0x0000000002860000-0x00000000028A0000-memory.dmp

    Filesize

    256KB

  • memory/2640-29-0x000000006F070000-0x000000006F61B000-memory.dmp

    Filesize

    5.7MB

  • memory/2640-28-0x000000006F070000-0x000000006F61B000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2692-18-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-21-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-23-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-24-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-27-0x0000000004E50000-0x0000000004E90000-memory.dmp

    Filesize

    256KB

  • memory/2692-15-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-14-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-13-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-12-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2692-33-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-34-0x0000000004E50000-0x0000000004E90000-memory.dmp

    Filesize

    256KB