Resubmissions

05-09-2023 01:34

230905-by5lrsch46 10

Analysis

  • max time kernel
    122s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 01:20

General

  • Target

    e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe

  • Size

    752KB

  • MD5

    1ae98135f3721f93c3627b8167e6fa50

  • SHA1

    c5eae06d96051b94cb6e0dabd0f40fed7384306d

  • SHA256

    e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be

  • SHA512

    64db93b80a24eb03104caaf778dd29d1a1592652b2d7f734f1e3e0ede89af5f1cafa627a756ec6fb63aa2e2cfa42ade6c6a9aa1e8dfff749275c19e6cb6e7565

  • SSDEEP

    12288:767B0v33ZJRDqzafmCu5ZjcVZaY2xtxDLQLBNwR2z3n8jUhRcOJ5cLc:76+v3RB+Cu5CZlutZLQLBNhn8j5y/

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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
  • 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
    "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HbNtXpFugh.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2404
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HbNtXpFugh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD3D3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
      "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
      2⤵
        PID:876
      • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
        "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
        2⤵
          PID:1772
        • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
          "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
          2⤵
            PID:1768
          • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
            "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
            2⤵
              PID:1656
            • C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe
              "C:\Users\Admin\AppData\Local\Temp\e1ae0e66e2ad4ee07faec69a41c3aaf6982e5a5c6fe9af7403310c43519227be.exe"
              2⤵
              • Accesses Microsoft Outlook profiles
              • Adds Run key to start application
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • outlook_office_path
              • outlook_win_path
              PID:308

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Execution

          Command and Scripting Interpreter

          1
          T1059

          PowerShell

          1
          T1059.001

          Scheduled Task/Job

          1
          T1053

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Scheduled Task/Job

          1
          T1053

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Scheduled Task/Job

          1
          T1053

          Defense Evasion

          Modify Registry

          1
          T1112

          Credential Access

          Unsecured Credentials

          2
          T1552

          Credentials In Files

          2
          T1552.001

          Discovery

          System Information Discovery

          1
          T1082

          Collection

          Data from Local System

          2
          T1005

          Email Collection

          1
          T1114

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmpD3D3.tmp
            Filesize

            1KB

            MD5

            82ea628fe6be30a44b8e68247154baa2

            SHA1

            52835eff4a689a3eb9cfbc37cad3438c63a02e99

            SHA256

            2356f3284b122d0f4c30c38c474d24d225254997489ec30f36f9fa65c8d2685f

            SHA512

            6578fe5d275d7b51a11b931fc6e70f8b09fb7ab412e6a7eaad476caf66baf2a5ccd1f991d858705dbf9a1f43cb2acc6ab9706bd7e6e4c45f9b8db93afe1ff9d3

          • memory/308-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
            Filesize

            4KB

          • memory/308-14-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-16-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-18-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-20-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-26-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-24-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/308-23-0x0000000000400000-0x0000000000442000-memory.dmp
            Filesize

            264KB

          • memory/1992-4-0x00000000747CE000-0x00000000747CF000-memory.dmp
            Filesize

            4KB

          • memory/1992-8-0x0000000007E00000-0x0000000007E7C000-memory.dmp
            Filesize

            496KB

          • memory/1992-7-0x00000000005E0000-0x00000000005EE000-memory.dmp
            Filesize

            56KB

          • memory/1992-6-0x0000000000580000-0x000000000058C000-memory.dmp
            Filesize

            48KB

          • memory/1992-5-0x00000000747C0000-0x0000000074EAE000-memory.dmp
            Filesize

            6.9MB

          • memory/1992-0-0x00000000747CE000-0x00000000747CF000-memory.dmp
            Filesize

            4KB

          • memory/1992-3-0x0000000000550000-0x0000000000566000-memory.dmp
            Filesize

            88KB

          • memory/1992-2-0x00000000747C0000-0x0000000074EAE000-memory.dmp
            Filesize

            6.9MB

          • memory/1992-1-0x0000000000170000-0x0000000000232000-memory.dmp
            Filesize

            776KB

          • memory/1992-29-0x00000000747C0000-0x0000000074EAE000-memory.dmp
            Filesize

            6.9MB