Analysis

  • max time kernel
    122s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:55

General

  • Target

    Bank slip.exe

  • Size

    810KB

  • MD5

    dfa4d69d102efe18603b643e03cd916f

  • SHA1

    104857721a2a10211bf4638fc1aac4f01026839d

  • SHA256

    ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41

  • SHA512

    0e248fc8bbc5db13db05c266b46a0bbd4900de17c5208c881fc66ff0732cd67af50000936da1a1b198fefa9e9407388fdf9ff78116b5b2abdaa02817a67f46fe

  • SSDEEP

    12288:GfpsApRsBWD84RF1RSaXXqftMwjfBCQr60ijTLGSCB8rBCg09poeV:GtpRse40MvCVTGhBoCX9

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • 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\Bank slip.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2456
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uhoFDbAUHRPNgj.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1232
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uhoFDbAUHRPNgj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp60C6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1976
    • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
      2⤵
        PID:2064
      • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
        "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
        2⤵
          PID:1600
        • C:\Users\Admin\AppData\Local\Temp\Bank slip.exe
          "C:\Users\Admin\AppData\Local\Temp\Bank slip.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2656

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Scheduled Task/Job

      1
      T1053

      Credential Access

      Unsecured Credentials

      4
      T1552

      Credentials In Files

      3
      T1552.001

      Credentials in Registry

      1
      T1552.002

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      4
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp60C6.tmp
        Filesize

        1KB

        MD5

        1f27436a7ef4ea8908bac76f85cfb9a2

        SHA1

        96200bdad076484374df6d9f0faafd89903d2bc6

        SHA256

        7cd82f1bc8336139353b1c79dda2fa1502d7fcf01a1c07e7684c5907ed520054

        SHA512

        d4811ede17b28c3a2717c9940661511643666548cef0cbc621fe808c885281ce4a46ad6ffe974dc3965a30940339049ed32383378951af9ac734f947609fcd61

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

        7KB

        MD5

        02d151bc70608d80dfde82b85097929d

        SHA1

        cb45c429a76f0bc60da0c7ef7c7404d34efe9836

        SHA256

        79ea2d941082f5aad9ea68270f3ae94daa727e356cfbcfa5ea11545809d37c7d

        SHA512

        83804499ed34620c05b7992a18f68ae10b6ec73dea074bfe9ed4e436e6e9b37637471f6348fe1c440d9b907bb89ffa69aaff041e9533ff5700f30f4a5c9ebfff

      • memory/1232-41-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/1232-39-0x00000000021C0000-0x0000000002200000-memory.dmp
        Filesize

        256KB

      • memory/1232-35-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/1232-33-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/2456-37-0x0000000002320000-0x0000000002360000-memory.dmp
        Filesize

        256KB

      • memory/2456-36-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/2456-32-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/2456-34-0x0000000002320000-0x0000000002360000-memory.dmp
        Filesize

        256KB

      • memory/2456-42-0x000000006DEC0000-0x000000006E46B000-memory.dmp
        Filesize

        5.7MB

      • memory/2536-6-0x0000000074440000-0x0000000074B2E000-memory.dmp
        Filesize

        6.9MB

      • memory/2536-2-0x0000000000590000-0x00000000005D0000-memory.dmp
        Filesize

        256KB

      • memory/2536-4-0x00000000003D0000-0x00000000003DC000-memory.dmp
        Filesize

        48KB

      • memory/2536-0-0x0000000000140000-0x0000000000210000-memory.dmp
        Filesize

        832KB

      • memory/2536-1-0x0000000074440000-0x0000000074B2E000-memory.dmp
        Filesize

        6.9MB

      • memory/2536-3-0x0000000000520000-0x000000000053A000-memory.dmp
        Filesize

        104KB

      • memory/2536-19-0x0000000000590000-0x00000000005D0000-memory.dmp
        Filesize

        256KB

      • memory/2536-31-0x0000000074440000-0x0000000074B2E000-memory.dmp
        Filesize

        6.9MB

      • memory/2536-5-0x0000000004F80000-0x0000000005002000-memory.dmp
        Filesize

        520KB

      • memory/2656-23-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-30-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-28-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-26-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/2656-38-0x0000000004A30000-0x0000000004A70000-memory.dmp
        Filesize

        256KB

      • memory/2656-22-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-40-0x0000000073140000-0x000000007382E000-memory.dmp
        Filesize

        6.9MB

      • memory/2656-21-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-20-0x0000000000400000-0x0000000000440000-memory.dmp
        Filesize

        256KB

      • memory/2656-43-0x0000000004A30000-0x0000000004A70000-memory.dmp
        Filesize

        256KB

      • memory/2656-44-0x0000000073140000-0x000000007382E000-memory.dmp
        Filesize

        6.9MB