Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2023 10:56

General

  • Target

    Payment of PO. 303092.exe

  • Size

    727KB

  • MD5

    02389ebeb400fccb4be3a8a838947f41

  • SHA1

    7f36a7136d1a7fa89f79406df235a761b77ecb71

  • SHA256

    93c6d96d2c4eff6927c67389dbfa6be605fb70f8005783c3b9915a1ed9fd47f9

  • SHA512

    fb14193f2eed31a5a797296cb2e71f7b67c72bd16f58fff84b8f2d770a7b645a4260020fd05ca4a84006f543ab565dd9eef5ceb97984e4ced5f79a788f4bd5fe

  • SSDEEP

    12288:h7KE6jD/62iNG5nF8gljUB4Ab/J18w+Dao23eg6WwqEdz4EH9O4r9Ha:h7KtD/61IfjMXB2bGo9tWV84Spr0

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
  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment of PO. 303092.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment of PO. 303092.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vTqEAcFwp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2232
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vTqEAcFwp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F35.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2256
    • C:\Users\Admin\AppData\Local\Temp\Payment of PO. 303092.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment of PO. 303092.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8F35.tmp

    Filesize

    1KB

    MD5

    03be2f68de5aaea70996279f29dc9a49

    SHA1

    55509596caf6552887525a5c88d33fc7fac4d385

    SHA256

    7be16bf2e618947794e80542d19442b6e08c9ee080654755bb36b0a4165adebf

    SHA512

    6bb8db557b1c6c4f11e80103fbc45047aeb607086d3d6e88c6abf0944626ac4b3db744dc415332aae0829da42001414b5ee77194179503b44c948f9c64611dc5

  • memory/2136-27-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2136-1-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2136-2-0x0000000004A30000-0x0000000004A70000-memory.dmp

    Filesize

    256KB

  • memory/2136-3-0x0000000000810000-0x0000000000828000-memory.dmp

    Filesize

    96KB

  • memory/2136-4-0x00000000009D0000-0x00000000009D8000-memory.dmp

    Filesize

    32KB

  • memory/2136-5-0x00000000009E0000-0x00000000009EA000-memory.dmp

    Filesize

    40KB

  • memory/2136-6-0x00000000050D0000-0x000000000513A000-memory.dmp

    Filesize

    424KB

  • memory/2136-0-0x0000000000F90000-0x000000000104C000-memory.dmp

    Filesize

    752KB

  • memory/2232-31-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-33-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-37-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-36-0x00000000003F0000-0x0000000000430000-memory.dmp

    Filesize

    256KB

  • memory/2232-35-0x00000000003F0000-0x0000000000430000-memory.dmp

    Filesize

    256KB

  • memory/2232-34-0x00000000003F0000-0x0000000000430000-memory.dmp

    Filesize

    256KB

  • memory/2592-16-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-29-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-30-0x0000000073340000-0x0000000073A2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2592-14-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-32-0x0000000005160000-0x00000000051A0000-memory.dmp

    Filesize

    256KB

  • memory/2592-26-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-18-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-24-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2592-20-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2592-38-0x0000000073340000-0x0000000073A2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2592-39-0x0000000005160000-0x00000000051A0000-memory.dmp

    Filesize

    256KB