Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    08/12/2023, 02:40

General

  • Target

    16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc.exe

  • Size

    603KB

  • MD5

    3552552714e612e9c9bef9c2684b9341

  • SHA1

    a547d614934e54d862e7d18b31a18cea0227669f

  • SHA256

    16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc

  • SHA512

    906bedfd82ae522e8a48a174ce3abfb7eb2cd5b97f77ffb8afe0f85a723e616a61b23568f0abb97b87800a4e90cda0b88a2914c5363daba973acd7c1b9df65b1

  • SSDEEP

    12288:tBqW3HA+GP0C5vkEFR7LOGJXWSNhScAueH5qzr:t7kJ58EFNWGhvkq

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\16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc.exe
    "C:\Users\Admin\AppData\Local\Temp\16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pgmlkvLgopP.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pgmlkvLgopP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDFE4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2696
    • C:\Users\Admin\AppData\Local\Temp\16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc.exe
      "C:\Users\Admin\AppData\Local\Temp\16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDFE4.tmp

    Filesize

    1KB

    MD5

    a2779afc02e5c473f5b6ed77f80edb09

    SHA1

    3414e72c6398290431aea672ba92eb7e8b7cbcf2

    SHA256

    d342fed0512ec90203fa73383de9a5eeb32fc64141a16183e5534bd5376d05dc

    SHA512

    4659a8cf22bd903d2b143d45f4235ce334c2da4006073090ba70a23d63c3f03f9a1046735a4aed16ba0d7966e5cce9b718ca4608a8e782590701247d899387f5

  • memory/2364-6-0x0000000005E40000-0x0000000005EAA000-memory.dmp

    Filesize

    424KB

  • memory/2364-2-0x0000000004E40000-0x0000000004E80000-memory.dmp

    Filesize

    256KB

  • memory/2364-3-0x0000000000560000-0x000000000057A000-memory.dmp

    Filesize

    104KB

  • memory/2364-4-0x0000000000990000-0x0000000000998000-memory.dmp

    Filesize

    32KB

  • memory/2364-5-0x00000000009E0000-0x00000000009EA000-memory.dmp

    Filesize

    40KB

  • memory/2364-26-0x00000000748E0000-0x0000000074FCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2364-1-0x00000000748E0000-0x0000000074FCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2364-0-0x0000000000B10000-0x0000000000BAE000-memory.dmp

    Filesize

    632KB

  • memory/2632-36-0x000000006ECA0000-0x000000006F24B000-memory.dmp

    Filesize

    5.7MB

  • memory/2632-35-0x0000000002870000-0x00000000028B0000-memory.dmp

    Filesize

    256KB

  • memory/2632-33-0x000000006ECA0000-0x000000006F24B000-memory.dmp

    Filesize

    5.7MB

  • memory/2632-32-0x0000000002870000-0x00000000028B0000-memory.dmp

    Filesize

    256KB

  • memory/2632-30-0x000000006ECA0000-0x000000006F24B000-memory.dmp

    Filesize

    5.7MB

  • memory/2772-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2772-27-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-29-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-24-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-31-0x0000000004C70000-0x0000000004CB0000-memory.dmp

    Filesize

    256KB

  • memory/2772-20-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-18-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-34-0x00000000735E0000-0x0000000073CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/2772-16-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-14-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2772-38-0x0000000004C70000-0x0000000004CB0000-memory.dmp

    Filesize

    256KB

  • memory/2772-39-0x00000000735E0000-0x0000000073CCE000-memory.dmp

    Filesize

    6.9MB