Analysis

  • max time kernel
    134s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:59

General

  • Target

    bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe

  • Size

    772KB

  • MD5

    f0be9493ae223f78ef2b7218f388ae87

  • SHA1

    69a0ad09c3b7c919d4f5c8729033f3a1db10a662

  • SHA256

    bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73

  • SHA512

    c30768325e0478a7fa14d0c8726852dcdb5e0cfc982df4bb2477c04b223c156d58a1d1e8b1969398ca90625ada2338c78130218a70db6f6d9f00fe72ab644d85

  • SSDEEP

    12288:KqTXJtaEc4qxpRzsqIaEa8hIcQqBjAq3SR7yNAwXtVYw1G3yFmGmhUD397rP+2/I:R9tuv/D0Lqqi2Ce1OiI

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe
    "C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1968
    • 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\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FvOlvyo.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:696
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FvOlvyo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E58.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4672
    • C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe
      "C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
      2⤵
        PID:4684
      • C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe
        "C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
        2⤵
          PID:2368
        • C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe
          "C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
          2⤵
            PID:1504
          • C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe
            "C:\Users\Admin\AppData\Local\Temp\bf510c798632c88e648a0835dabebf4008a271ca94413ac2daaa87a963d4fd73.exe"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3852

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          Filesize

          18KB

          MD5

          c34a518b243f84030c8ef0cf2e0d1e66

          SHA1

          7099bd520c216225139ac198ac8530410d2d5747

          SHA256

          0621a8a1d7debc8176d9e1e54272b4a476022239a4d77852c3e95b1f9729ce10

          SHA512

          23d36ed06f52c87729a0b4348248df5b0700b74e80c4f247d9a6b7eddb0844f3bd43fc9913a1e11a5004df362977c9e4947e3b2ec2b12d0e9b64bb1477712b3d

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gikl4ooc.kqu.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp7E58.tmp
          Filesize

          1KB

          MD5

          cafb8f41c5f3eb21806cf44447487458

          SHA1

          d1b6dde1e16c25e99c2691a7f230eeaa648a56b8

          SHA256

          7959442daacf2c8a21cb6b394064eaf776f51f116e62292072e49e7410537839

          SHA512

          ebc97e01b49d830f73c1cf2bd314ee0d1dd689f746c260c698cbb58eb7238fb403d9bf892b91ae74334843657f195913f6bc9632f84557d2801b484421f573a7

        • memory/696-76-0x00000000073A0000-0x00000000073AA000-memory.dmp
          Filesize

          40KB

        • memory/696-75-0x0000000007330000-0x000000000734A000-memory.dmp
          Filesize

          104KB

        • memory/696-89-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/696-82-0x0000000007650000-0x0000000007658000-memory.dmp
          Filesize

          32KB

        • memory/696-79-0x0000000007560000-0x000000000756E000-memory.dmp
          Filesize

          56KB

        • memory/696-78-0x0000000007530000-0x0000000007541000-memory.dmp
          Filesize

          68KB

        • memory/696-77-0x00000000075B0000-0x0000000007646000-memory.dmp
          Filesize

          600KB

        • memory/696-74-0x0000000007970000-0x0000000007FEA000-memory.dmp
          Filesize

          6.5MB

        • memory/696-63-0x00000000071E0000-0x0000000007283000-memory.dmp
          Filesize

          652KB

        • memory/696-62-0x0000000006F70000-0x0000000006F8E000-memory.dmp
          Filesize

          120KB

        • memory/696-44-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/696-21-0x00000000058F0000-0x0000000005956000-memory.dmp
          Filesize

          408KB

        • memory/696-51-0x0000000006F90000-0x0000000006FC2000-memory.dmp
          Filesize

          200KB

        • memory/696-22-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/696-20-0x00000000057D0000-0x0000000005836000-memory.dmp
          Filesize

          408KB

        • memory/696-52-0x0000000071460000-0x00000000714AC000-memory.dmp
          Filesize

          304KB

        • memory/696-24-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/1968-8-0x0000000007170000-0x0000000007180000-memory.dmp
          Filesize

          64KB

        • memory/1968-2-0x0000000007460000-0x0000000007A04000-memory.dmp
          Filesize

          5.6MB

        • memory/1968-6-0x00000000073A0000-0x0000000007440000-memory.dmp
          Filesize

          640KB

        • memory/1968-9-0x0000000008580000-0x0000000008602000-memory.dmp
          Filesize

          520KB

        • memory/1968-7-0x0000000007150000-0x000000000716A000-memory.dmp
          Filesize

          104KB

        • memory/1968-4-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/1968-1-0x0000000000080000-0x0000000000144000-memory.dmp
          Filesize

          784KB

        • memory/1968-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp
          Filesize

          4KB

        • memory/1968-5-0x0000000004470000-0x000000000447A000-memory.dmp
          Filesize

          40KB

        • memory/1968-48-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/1968-10-0x0000000005C30000-0x0000000005CCC000-memory.dmp
          Filesize

          624KB

        • memory/1968-3-0x0000000006F50000-0x0000000006FE2000-memory.dmp
          Filesize

          584KB

        • memory/3852-90-0x0000000006DD0000-0x0000000006E20000-memory.dmp
          Filesize

          320KB

        • memory/3852-46-0x0000000000400000-0x0000000000440000-memory.dmp
          Filesize

          256KB

        • memory/4216-16-0x0000000004F30000-0x0000000005558000-memory.dmp
          Filesize

          6.2MB

        • memory/4216-26-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/4216-17-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/4216-15-0x0000000002400000-0x0000000002436000-memory.dmp
          Filesize

          216KB

        • memory/4216-25-0x0000000005740000-0x0000000005A94000-memory.dmp
          Filesize

          3.3MB

        • memory/4216-80-0x0000000007240000-0x0000000007254000-memory.dmp
          Filesize

          80KB

        • memory/4216-81-0x0000000007340000-0x000000000735A000-memory.dmp
          Filesize

          104KB

        • memory/4216-19-0x0000000004D30000-0x0000000004D52000-memory.dmp
          Filesize

          136KB

        • memory/4216-50-0x0000000005D70000-0x0000000005DBC000-memory.dmp
          Filesize

          304KB

        • memory/4216-49-0x0000000005CE0000-0x0000000005CFE000-memory.dmp
          Filesize

          120KB

        • memory/4216-64-0x0000000071460000-0x00000000714AC000-memory.dmp
          Filesize

          304KB

        • memory/4216-88-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB

        • memory/4216-18-0x0000000074CB0000-0x0000000075460000-memory.dmp
          Filesize

          7.7MB