Analysis

  • max time kernel
    117s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    11/11/2023, 10:17

General

  • Target

    NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe

  • Size

    711KB

  • MD5

    2c0a51d87d3bf16105bee87fb94b9e61

  • SHA1

    19143f0ba3126321683870dd03367802b4eadaba

  • SHA256

    4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9

  • SHA512

    3da83bc9ff7d312dda29065fd1c7222c4f3043ba1bff679aedaa50fc60801161ee1738910032587e44a75ac518dc481f39697a0d50ae5053c1711304996c3867

  • SSDEEP

    12288:q8Yk4I8Vj6DmlU9P6vJxzEYXcugdSSTyQ+W12VYw16jeDDSgG:VYBIm4mPIYXcfSS4w2VYw86DDSg

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.

  • Adds Run key to start application 2 TTPs 1 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 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2524
    • 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\NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nvTFGCbBIeXrmH.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nvTFGCbBIeXrmH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD337.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3028
    • C:\Users\Admin\AppData\Local\Temp\NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.4a1e905eda13c02979b5a7562cc9af45f96da810fb7fd01fe858dc998a3d78b9.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3000

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpD337.tmp

          Filesize

          1KB

          MD5

          ee3c5c0085e9b90a036a41728890a994

          SHA1

          b6697976ee239ba703fe1363a912d3b8a26697f2

          SHA256

          90de90477168410602c11d54ee113c0e6973ea4aa1f0138c590d0bafaa22f0c4

          SHA512

          ae81d98b67ec001cc0d62679ec4d52fed8d12ef292c3734b3014b95f2ad2dd2c7e61059c49891bd0427a64b610d6024a8f76c14e4557bdd7b54e64e43d6cf055

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\CQI77R6PHYLVZ4CQ7K5K.temp

          Filesize

          7KB

          MD5

          ec0c6229bd31df44163ebfd9fbe83765

          SHA1

          e6e76c514fb139a71db4b22a5c6f63bb0afd081a

          SHA256

          7347a9bcca7f536a7ab0d1edf847449cdc176c13087d2dce7e3cae051a4ea321

          SHA512

          81fee3125202afedf83aa9fc4fd3e9dbf197c418f418e2c91dfe5ff1e6ab2cce2660a99ef477bc349818b8fcdf940a65a4c9a66a850dbe8da1ec47c58cec67e7

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

          Filesize

          7KB

          MD5

          ec0c6229bd31df44163ebfd9fbe83765

          SHA1

          e6e76c514fb139a71db4b22a5c6f63bb0afd081a

          SHA256

          7347a9bcca7f536a7ab0d1edf847449cdc176c13087d2dce7e3cae051a4ea321

          SHA512

          81fee3125202afedf83aa9fc4fd3e9dbf197c418f418e2c91dfe5ff1e6ab2cce2660a99ef477bc349818b8fcdf940a65a4c9a66a850dbe8da1ec47c58cec67e7

        • memory/2524-4-0x0000000074B10000-0x00000000751FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2524-1-0x0000000074B10000-0x00000000751FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2524-5-0x0000000000A00000-0x0000000000A0A000-memory.dmp

          Filesize

          40KB

        • memory/2524-6-0x00000000052D0000-0x000000000534C000-memory.dmp

          Filesize

          496KB

        • memory/2524-7-0x0000000004DE0000-0x0000000004E20000-memory.dmp

          Filesize

          256KB

        • memory/2524-3-0x0000000000510000-0x000000000051E000-memory.dmp

          Filesize

          56KB

        • memory/2524-2-0x0000000004DE0000-0x0000000004E20000-memory.dmp

          Filesize

          256KB

        • memory/2524-34-0x0000000074B10000-0x00000000751FE000-memory.dmp

          Filesize

          6.9MB

        • memory/2524-0-0x0000000000C50000-0x0000000000D08000-memory.dmp

          Filesize

          736KB

        • memory/2700-41-0x0000000002710000-0x0000000002750000-memory.dmp

          Filesize

          256KB

        • memory/2700-40-0x0000000002710000-0x0000000002750000-memory.dmp

          Filesize

          256KB

        • memory/2700-37-0x000000006F9A0000-0x000000006FF4B000-memory.dmp

          Filesize

          5.7MB

        • memory/2700-43-0x000000006F9A0000-0x000000006FF4B000-memory.dmp

          Filesize

          5.7MB

        • memory/2700-38-0x0000000002710000-0x0000000002750000-memory.dmp

          Filesize

          256KB

        • memory/2804-39-0x000000006F9A0000-0x000000006FF4B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-36-0x000000006F9A0000-0x000000006FF4B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-44-0x000000006F9A0000-0x000000006FF4B000-memory.dmp

          Filesize

          5.7MB

        • memory/3000-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/3000-35-0x00000000049D0000-0x0000000004A10000-memory.dmp

          Filesize

          256KB

        • memory/3000-30-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-28-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-32-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-23-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-24-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-22-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-20-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3000-33-0x0000000074B10000-0x00000000751FE000-memory.dmp

          Filesize

          6.9MB

        • memory/3000-45-0x0000000074B10000-0x00000000751FE000-memory.dmp

          Filesize

          6.9MB

        • memory/3000-46-0x00000000049D0000-0x0000000004A10000-memory.dmp

          Filesize

          256KB