Analysis

  • max time kernel
    157s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:20

General

  • Target

    PAYMENT DETAILS.exe

  • Size

    493KB

  • MD5

    3a9a227176fb62ce49babf580bb65d3a

  • SHA1

    bab607332c3e627c5625daefff43a30bc911a11e

  • SHA256

    b1d739f172585d015a122fa13d80e292e82a0e6933b40586b8c52f09414d4691

  • SHA512

    c75101c47ed62530b94b02db01ca5eece4698217d7e6ae50a640272cf9286980a2146e62aa16d335496d4e92048fdae7b01f5bc9957afcb000064c183a02065f

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.starmakertravel.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    admin2000

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.starmakertravel.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    admin2000

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aXtGxjkjVdlbUx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1652.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2192
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1452
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:2248

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PAYMENT DETAILS.exe.log

      Filesize

      1KB

      MD5

      b047adeb70c859aa9027e25cac9a3535

      SHA1

      f52b01d700073b5774d407433a1a4a6a1d30ac12

      SHA256

      a6281b265c4d1395475a3b363d02d66a28ca19a38812b3f59c52efe6b30f104f

      SHA512

      cbbdc86f38d7967283c9c25213e79c7db558d4fac28f2abf3472a2c92463cd719c4053fc0b7cf37ea06e9f6c4413e93a16c6b94e0009a6d9699fca232061a4e2

    • C:\Users\Admin\AppData\Local\Temp\tmp1652.tmp

      Filesize

      1KB

      MD5

      7ffa072c455949070c881c04b992e51f

      SHA1

      1786d0b9e372855954090276c29a0fb2eaa58335

      SHA256

      05f2381b05d83003004f4f25b620457e12d023541afcf92f936cb2f3ac527ef3

      SHA512

      e613e1e27a0294f97541984f68c4d4eccb363b81dfeb8832773c1b41c13d14b4b7eb50ffeabd6fc2785736305a94a5830289f4d3fccb7fb0dac7fbe244740d42

    • memory/1452-144-0x00000000068E0000-0x0000000006930000-memory.dmp

      Filesize

      320KB

    • memory/1452-142-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1452-141-0x0000000000000000-mapping.dmp

    • memory/2192-139-0x0000000000000000-mapping.dmp

    • memory/2248-145-0x0000000000000000-mapping.dmp

    • memory/4628-134-0x00000000059C0000-0x00000000059CA000-memory.dmp

      Filesize

      40KB

    • memory/4628-138-0x0000000009C90000-0x0000000009CF6000-memory.dmp

      Filesize

      408KB

    • memory/4628-137-0x00000000095B0000-0x000000000964C000-memory.dmp

      Filesize

      624KB

    • memory/4628-136-0x0000000005F10000-0x0000000005F32000-memory.dmp

      Filesize

      136KB

    • memory/4628-135-0x0000000005B50000-0x0000000005B62000-memory.dmp

      Filesize

      72KB

    • memory/4628-131-0x0000000000EE0000-0x0000000000F62000-memory.dmp

      Filesize

      520KB

    • memory/4628-133-0x0000000005900000-0x0000000005992000-memory.dmp

      Filesize

      584KB

    • memory/4628-132-0x0000000005F60000-0x0000000006504000-memory.dmp

      Filesize

      5.6MB