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, 18:32

General

  • Target

    dhl_Ref_AWB#4547028900pdf.exe

  • Size

    695KB

  • MD5

    0db822fa626ab44ce58958e45d439a20

  • SHA1

    a674592f7f01a24fa85838d3d697fea11779e3a2

  • SHA256

    e3bfec7bab88ff2b0389ee7850b548413607b9074912eca507c09737d93d3a14

  • SHA512

    a61f02a8d5809ec453eb507857cf2975e3c7b78bb278cede64719084d4787fd2ae8acae9d35badf9dd617a19662df676fb87fe8450ab408a2a436f2eb9d4438d

  • SSDEEP

    12288:BdrLbDZaNRpbgoxpz+hKuhyoQ3UlC+adAhV92LhkAr2YUjsxL7glIhr3qA:bLDZMRpMCBezZ82N26Arh1xLXLqA

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_Ref_AWB#4547028900pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\dhl_Ref_AWB#4547028900pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2504
    • 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_Ref_AWB#4547028900pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DmPRZWRRivRIb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2528
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DmPRZWRRivRIb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC735.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2652
    • C:\Users\Admin\AppData\Local\Temp\dhl_Ref_AWB#4547028900pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\dhl_Ref_AWB#4547028900pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1600

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpC735.tmp

          Filesize

          1KB

          MD5

          0ca1ab20e6c86f760f90ed28956f9be6

          SHA1

          8509054623dbfc30d1afd825783b79236e77d750

          SHA256

          3baac01d384791904d1b5ebbfa58fb5f5959465f40132fc20337aaef300588c8

          SHA512

          d1511b78754431119ff8a3ab9b46383dfc399a9a9757b65223b02c8e26d8535a53f88d11d1fd293f175d82e0132b3c15fc3db39cb70fd7c9c7d2bfee1dac34f3

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

          Filesize

          7KB

          MD5

          b72fb648dbd6dae49dc84fe5e4f89254

          SHA1

          ac7a10250b3325ff20f0a03f6beaaf3eff9f4354

          SHA256

          1b3b90a8e23f09ad6a20bf95d0e4aae5a61687b1dbccca2332c8d03b17bd3fa4

          SHA512

          e446171b91be4be2c6d8c7e4ccdb3b4ffd1dbb452897551f2a51f6a87d4538d179c861eedbd6ebcb3a0c8ab1fb9cc762a2f700cc055f6e417681a6400d29ffad

        • memory/1600-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1600-29-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-18-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-21-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-22-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-24-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-28-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/1600-27-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2504-6-0x00000000003E0000-0x0000000000462000-memory.dmp

          Filesize

          520KB

        • memory/2504-1-0x0000000000AF0000-0x0000000000BA2000-memory.dmp

          Filesize

          712KB

        • memory/2504-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

          Filesize

          4KB

        • memory/2504-30-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2504-2-0x0000000073F20000-0x000000007460E000-memory.dmp

          Filesize

          6.9MB

        • memory/2504-3-0x00000000006E0000-0x0000000000702000-memory.dmp

          Filesize

          136KB

        • memory/2504-5-0x0000000000680000-0x0000000000690000-memory.dmp

          Filesize

          64KB

        • memory/2504-4-0x0000000000480000-0x000000000048C000-memory.dmp

          Filesize

          48KB