Analysis

  • max time kernel
    80s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2023, 01:43

General

  • Target

    8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe

  • Size

    775KB

  • MD5

    d17e59fd176aae98c150886fea60570b

  • SHA1

    b01a5d94c62b07a26721d71e296c3fcc60488c25

  • SHA256

    8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0

  • SHA512

    f56f3482432628fd2b27590bd4aa5cec8903b2d6dcb3e6ffd9844d8d539aa2d9ef56ff6404e65b1d11a4024bf923461048fdd5b21751a76f7cb38e715292544f

  • SSDEEP

    12288:E+nL4snOS4moTN3YNXNT5xu52vao4g4o2QDYEIo1qSZk8xT2F6oL:9O3moQ5xM2vao4afBS8te6o

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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe
    "C:\Users\Admin\AppData\Local\Temp\8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1408
    • 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\8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:664
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xukQFHnm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:584
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xukQFHnm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1140
    • C:\Users\Admin\AppData\Local\Temp\8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe
      "C:\Users\Admin\AppData\Local\Temp\8086b51ee5ff64002102bf80e36b81650ba576903fc00965e1a947ae013aa9c0.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:484

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          1KB

          MD5

          512f313e9deb57f064ae4f2d3ec16be6

          SHA1

          9b46e9f7c2a0ae9285c9583c4241264a1958cf02

          SHA256

          dafb666d9e3bd648d83f10a0450b577e998040a2297ee325b2616c1e4ee48700

          SHA512

          bc4bf1ba95f2d9744fc05481e59e3ce79b7d11d10fb6ce05df7e34179fe386dd23c405c63500bda3c4d723078c6bb1c8d2ac4ec6336a08bc5c1948e13a712d9d

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\W6H3B797L35WCZOPBKK7.temp

          Filesize

          7KB

          MD5

          6e483f132c31194d5d6492dc7fad6f5c

          SHA1

          1c1625d704a42d56162fb6a83206294092525236

          SHA256

          7ef73e8dc8e96cd15bb5225310e08ebc5c311e227493bf45623d85c1964e749d

          SHA512

          9c11505e85d8b0fc1975efee02d9d885d9e3c77172893ca7b5ff83ab65856f9aef5fc9e24fa1b1e7ebe532a2fc880f65a5f7929c3c2408d18d086fc282dc7c2e

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

          Filesize

          7KB

          MD5

          6e483f132c31194d5d6492dc7fad6f5c

          SHA1

          1c1625d704a42d56162fb6a83206294092525236

          SHA256

          7ef73e8dc8e96cd15bb5225310e08ebc5c311e227493bf45623d85c1964e749d

          SHA512

          9c11505e85d8b0fc1975efee02d9d885d9e3c77172893ca7b5ff83ab65856f9aef5fc9e24fa1b1e7ebe532a2fc880f65a5f7929c3c2408d18d086fc282dc7c2e

        • memory/484-78-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-80-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-82-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/484-76-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-75-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-74-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/484-73-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/584-83-0x0000000002740000-0x0000000002780000-memory.dmp

          Filesize

          256KB

        • memory/584-84-0x0000000002740000-0x0000000002780000-memory.dmp

          Filesize

          256KB

        • memory/1408-72-0x0000000004E30000-0x0000000004E64000-memory.dmp

          Filesize

          208KB

        • memory/1408-55-0x0000000004950000-0x0000000004990000-memory.dmp

          Filesize

          256KB

        • memory/1408-56-0x00000000004C0000-0x00000000004CE000-memory.dmp

          Filesize

          56KB

        • memory/1408-57-0x0000000004950000-0x0000000004990000-memory.dmp

          Filesize

          256KB

        • memory/1408-54-0x0000000000A50000-0x0000000000B18000-memory.dmp

          Filesize

          800KB

        • memory/1408-58-0x00000000008F0000-0x00000000008FA000-memory.dmp

          Filesize

          40KB

        • memory/1408-59-0x00000000050D0000-0x000000000513C000-memory.dmp

          Filesize

          432KB