Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2023 16:51

General

  • Target

    Purchase Order.exe

  • Size

    502KB

  • MD5

    5f96ca1cb69ffa48bc90c22e83a33eb7

  • SHA1

    87115d2916f51e0f4bc11725a5d11c86e3064c02

  • SHA256

    e27e63e6096a727c94170fc3459661fe3fda9d396d5451ae253015880b37c9d0

  • SHA512

    8c437cd96c1a79013a0100ece43d5e6448e987253488e1572b88b88a5bdf615d9de85ff5726e340ef22353f5c6dad273eec353589c13295a6849d91ee7bbe6e5

  • SSDEEP

    12288:bFBF5Z/NKh0xapZn0JKZvoa1T0AUh7LhNWIr:RnsJXm0w+XUh3W

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 WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zJOkjOzHfLUWO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB04C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:536
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB04C.tmp

    Filesize

    1KB

    MD5

    4b0700a835e5cdcf99fe743811fd60a7

    SHA1

    ab9317c334505a1abf7a28b8e926a2a4c7c94aac

    SHA256

    5d48422981b9c3cae50296ed86a3899e5621e6b7d97a381a7fcdc2f5b2b933e2

    SHA512

    e8021a4487c4eb4a8a76ee272c38b97c6013c01439881810190bb72c1c481a9672a5f4988a4bfbedcaae9c1e5c274a7d7ddc7236697802d676f73ca5b6530a2e

  • memory/2620-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-34-0x0000000001F10000-0x0000000001F50000-memory.dmp

    Filesize

    256KB

  • memory/2620-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-33-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2620-32-0x0000000001F10000-0x0000000001F50000-memory.dmp

    Filesize

    256KB

  • memory/2620-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-30-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2620-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2620-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2620-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2944-0-0x0000000000040000-0x00000000000C4000-memory.dmp

    Filesize

    528KB

  • memory/2944-5-0x0000000004220000-0x000000000422C000-memory.dmp

    Filesize

    48KB

  • memory/2944-8-0x000000007EF40000-0x000000007EF50000-memory.dmp

    Filesize

    64KB

  • memory/2944-1-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-11-0x0000000005290000-0x00000000052D2000-memory.dmp

    Filesize

    264KB

  • memory/2944-3-0x000000007EF40000-0x000000007EF50000-memory.dmp

    Filesize

    64KB

  • memory/2944-10-0x00000000056E0000-0x0000000005760000-memory.dmp

    Filesize

    512KB

  • memory/2944-7-0x00000000046A0000-0x00000000046E0000-memory.dmp

    Filesize

    256KB

  • memory/2944-9-0x00000000046A0000-0x00000000046E0000-memory.dmp

    Filesize

    256KB

  • memory/2944-2-0x00000000046A0000-0x00000000046E0000-memory.dmp

    Filesize

    256KB

  • memory/2944-31-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-6-0x0000000074640000-0x0000000074D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-4-0x00000000046A0000-0x00000000046E0000-memory.dmp

    Filesize

    256KB