Analysis

  • max time kernel
    118s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/05/2024, 18:33

General

  • Target

    DHL Delivery Invoice.exe

  • Size

    723KB

  • MD5

    e9803ebe72e992dd17a5ecb2a65fb629

  • SHA1

    24bd5f0b091a426434b5559fda8dddc31500f4c0

  • SHA256

    2009ac39a5ed9bb927bb38b35db885425a7c40b95318efa020d4660c4c37ba26

  • SHA512

    1bee01e5dd4795954cd40242e3d1ae8e71f17445a0e3a17445e45405459929c3881eef4ebea1ef850d7e9151cd18f8e329b305ecd3ef49191266f21473a868f6

  • SSDEEP

    12288:4heN0pei36R88manNPrRrlrifK+yZfSGDgSgAIwBPF9P+QLiRZV6vzw6:4hvpp369JrR+MfSGsSgADF9P+miTV6vt

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 2 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QKCqSkoLhelqBu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QKCqSkoLhelqBu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC091.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2556
    • C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpC091.tmp

          Filesize

          1KB

          MD5

          1d70ccf857a8019e70cacbce9d527e81

          SHA1

          1e4e72c620df0fff365d28787a8f81a46b5e1a95

          SHA256

          67696373ae16e5dbf760dad52d02adb28e3f88f6184393176a9e98ff00f070a6

          SHA512

          26bf26179779feee56afeacf55f274230bee5e87b4759a40e1ce4c131d8c1f5566acdb996eb8b8e48f4ac8c661b86998e266327494624ac25487def6e83c2570

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          e021d55aff674701f32491876bd6bd8f

          SHA1

          2304bb0c2f89bc068b6e56ec8c605076b791f3c8

          SHA256

          313cf62087379edc09fe581e700276c48dc1b5253066df515b118e9bce5ab6d9

          SHA512

          d840aeb3c84e710dd0d03f8ab82b15be8b582c2109c07b51d15853519e921ccbee7b9b716ff5676d5103905e80417750bfaa3337e9237502da420daa40c7d279

        • memory/1308-4-0x00000000004F0000-0x00000000004FC000-memory.dmp

          Filesize

          48KB

        • memory/1308-31-0x0000000073DE0000-0x00000000744CE000-memory.dmp

          Filesize

          6.9MB

        • memory/1308-0-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

          Filesize

          4KB

        • memory/1308-5-0x0000000000620000-0x0000000000630000-memory.dmp

          Filesize

          64KB

        • memory/1308-6-0x00000000003B0000-0x0000000000432000-memory.dmp

          Filesize

          520KB

        • memory/1308-2-0x0000000073DE0000-0x00000000744CE000-memory.dmp

          Filesize

          6.9MB

        • memory/1308-1-0x00000000013A0000-0x000000000145A000-memory.dmp

          Filesize

          744KB

        • memory/1308-3-0x00000000007F0000-0x0000000000812000-memory.dmp

          Filesize

          136KB

        • memory/2588-19-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-30-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-29-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-28-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2588-25-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-21-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2588-23-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB