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Analysis

  • max time kernel
    154s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 14:50

General

  • Target

    PURCHASE.exe

  • Size

    589KB

  • MD5

    f4f17865d15852d7ca7acc8a3458e3ba

  • SHA1

    041a89729db626b52ccb6734a543d24775206edc

  • SHA256

    fa6cfed07797c6a3fc1962de2c17bc2065431f4fdfa209b77d8a7f28051ec2d8

  • SHA512

    b386f95445caa17be17e145daf3defa745a156cad2764b8b7819da055ae4429c5b52787835bd5f53ce0c7d0627e395197e77874ea0837e2ef516b837e6c7646d

  • SSDEEP

    12288:0725B9c4klaJEJ/hbedok6Vl+zTE40UvuPyHn+9YVFa7WkERBgahOhB:Htc4klKE5hbSokmAQ4Dvu6+7cgrB

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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2764
    • 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\PURCHASE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WZHBzFGpfQhw.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WZHBzFGpfQhw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF21C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2560
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
      2⤵
        PID:2940
      • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
        "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
        2⤵
          PID:2952
        • C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
          "C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:2948

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpF21C.tmp

        Filesize

        1KB

        MD5

        1deb8624625232b26c2d7b5ddf3eb55e

        SHA1

        3df14d1ffeac5065e854b2755918c466c19ff70b

        SHA256

        715c7ba8c430b7c8ce1a0bf467a6e15a64f0502e657b9d6fd237983db1ea5859

        SHA512

        66c9c0d5a96afb32136b7284dbf511e4ac0c3b613c1120cd3ee892413aa9bc2ace83974f1d85601aa9080a7448f320734b199816f18b7a949ad7c9773bdba712

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6WIF523TFX7T3S4FCGIJ.temp

        Filesize

        7KB

        MD5

        726ca037514222748d44d26a27ea71b6

        SHA1

        c95c64d635a2bd9e05779f50f692ae7671b47eec

        SHA256

        fa36ac0d15fce1d3c7829fd125c93878c1dca77f25ac8de91ef6e26e285d341c

        SHA512

        424cb447e445ebd10ce76cc73b96adf410a9cda5d81a3672d3b893a8471a4ea439d3604b770605cd375712dc2e7df7a539fd974127862bbfc0f4c0f4abf70eec

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

        Filesize

        7KB

        MD5

        726ca037514222748d44d26a27ea71b6

        SHA1

        c95c64d635a2bd9e05779f50f692ae7671b47eec

        SHA256

        fa36ac0d15fce1d3c7829fd125c93878c1dca77f25ac8de91ef6e26e285d341c

        SHA512

        424cb447e445ebd10ce76cc73b96adf410a9cda5d81a3672d3b893a8471a4ea439d3604b770605cd375712dc2e7df7a539fd974127862bbfc0f4c0f4abf70eec

      • memory/2500-29-0x0000000002680000-0x00000000026C0000-memory.dmp

        Filesize

        256KB

      • memory/2500-34-0x0000000002680000-0x00000000026C0000-memory.dmp

        Filesize

        256KB

      • memory/2500-46-0x000000006F470000-0x000000006FA1B000-memory.dmp

        Filesize

        5.7MB

      • memory/2500-24-0x000000006F470000-0x000000006FA1B000-memory.dmp

        Filesize

        5.7MB

      • memory/2500-33-0x000000006F470000-0x000000006FA1B000-memory.dmp

        Filesize

        5.7MB

      • memory/2764-4-0x0000000074710000-0x0000000074DFE000-memory.dmp

        Filesize

        6.9MB

      • memory/2764-2-0x0000000002100000-0x0000000002140000-memory.dmp

        Filesize

        256KB

      • memory/2764-1-0x0000000000090000-0x0000000000128000-memory.dmp

        Filesize

        608KB

      • memory/2764-7-0x00000000051D0000-0x0000000005246000-memory.dmp

        Filesize

        472KB

      • memory/2764-5-0x0000000002100000-0x0000000002140000-memory.dmp

        Filesize

        256KB

      • memory/2764-6-0x0000000000420000-0x000000000042C000-memory.dmp

        Filesize

        48KB

      • memory/2764-3-0x00000000003F0000-0x0000000000400000-memory.dmp

        Filesize

        64KB

      • memory/2764-44-0x0000000074710000-0x0000000074DFE000-memory.dmp

        Filesize

        6.9MB

      • memory/2764-0-0x0000000074710000-0x0000000074DFE000-memory.dmp

        Filesize

        6.9MB

      • memory/2776-36-0x00000000020B0000-0x00000000020F0000-memory.dmp

        Filesize

        256KB

      • memory/2776-26-0x000000006F470000-0x000000006FA1B000-memory.dmp

        Filesize

        5.7MB

      • memory/2776-45-0x00000000020B0000-0x00000000020F0000-memory.dmp

        Filesize

        256KB

      • memory/2776-47-0x000000006F470000-0x000000006FA1B000-memory.dmp

        Filesize

        5.7MB

      • memory/2776-39-0x00000000020B0000-0x00000000020F0000-memory.dmp

        Filesize

        256KB

      • memory/2948-25-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-38-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-41-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-28-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-42-0x0000000074710000-0x0000000074DFE000-memory.dmp

        Filesize

        6.9MB

      • memory/2948-35-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-43-0x0000000004880000-0x00000000048C0000-memory.dmp

        Filesize

        256KB

      • memory/2948-20-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2948-22-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/2948-48-0x0000000074710000-0x0000000074DFE000-memory.dmp

        Filesize

        6.9MB

      • memory/2948-49-0x0000000004880000-0x00000000048C0000-memory.dmp

        Filesize

        256KB

      • memory/2948-50-0x0000000004880000-0x00000000048C0000-memory.dmp

        Filesize

        256KB