Analysis

  • max time kernel
    146s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 01:58

General

  • Target

    scan0085..exe

  • Size

    731KB

  • MD5

    9c5cf8df3c25ba48acfae10528a0289e

  • SHA1

    d0185f4e2b1796862d291fe2fe781f02a18af85b

  • SHA256

    48d1ff7448d143804637331fbdd977a19fce92f578c6cba71a6593162da4a0cb

  • SHA512

    78b801a455d29b08c03ea6cecc919907eef15ae6bd2088b05c2d5c21e838fc60bb64ca5d841642c17e3812b239f3b602980024522b84529d46fd3e40608afba8

  • SSDEEP

    12288:4WET/mr9KGPuvBFYsXjje3A3hmcY+zoxTmEJJf4l1ITkdUKaeEozOkR:4WtvuJFZXe3AAiS7Jx49bV

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.naubahar.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Hum$885+Nn

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\scan0085..exe
    "C:\Users\Admin\AppData\Local\Temp\scan0085..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • 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\scan0085..exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ayybCeIBnYVSQ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4848
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ayybCeIBnYVSQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E89.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3632
    • C:\Users\Admin\AppData\Local\Temp\scan0085..exe
      "C:\Users\Admin\AppData\Local\Temp\scan0085..exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4484

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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

          9b1ad9d07a0afa79fc4bde8e2ea704c7

          SHA1

          4d35e692f5de96df1242887e8b13d5f23ff0e47b

          SHA256

          6a8390bbc19498bfe519e3b4e7dea5ecf0e15ca17bd1835f23cfc6257198d5dd

          SHA512

          e66790d113461c1a74ffb218a606846187fe499a46cf46ef85f7c7e728718f2391e35d205a96c1530ec0f473e75310ec1f9bf2ae87533ac7487138cbc5dbcb1e

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_shm1zugy.dkx.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp6E89.tmp

          Filesize

          1KB

          MD5

          a4780b87a766dbbce1aea910ea3ecad2

          SHA1

          428fb5e2ed922c7fd6e919a49292d886803a1e24

          SHA256

          19225b5af02ad09bc68d11a365f26a53168275cab627a14065a44cfdbc0adc54

          SHA512

          60bb23570baea705b59ca1d9654d7aa892de8c3f7c9e2eb70c5f179f6f015828d9ccd120635ae318b6916d15f12aea0357b0bab9de9378d1200fb3c86eff60a9

        • memory/1992-8-0x0000000005010000-0x0000000005020000-memory.dmp

          Filesize

          64KB

        • memory/1992-5-0x0000000005660000-0x000000000566A000-memory.dmp

          Filesize

          40KB

        • memory/1992-6-0x0000000005A60000-0x0000000005A82000-memory.dmp

          Filesize

          136KB

        • memory/1992-7-0x0000000005BD0000-0x0000000005BDC000-memory.dmp

          Filesize

          48KB

        • memory/1992-4-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/1992-9-0x0000000008190000-0x0000000008214000-memory.dmp

          Filesize

          528KB

        • memory/1992-10-0x00000000092B0000-0x000000000934C000-memory.dmp

          Filesize

          624KB

        • memory/1992-3-0x00000000056E0000-0x0000000005772000-memory.dmp

          Filesize

          584KB

        • memory/1992-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

          Filesize

          4KB

        • memory/1992-2-0x0000000005BF0000-0x0000000006194000-memory.dmp

          Filesize

          5.6MB

        • memory/1992-30-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/1992-1-0x0000000000B90000-0x0000000000C4A000-memory.dmp

          Filesize

          744KB

        • memory/4192-16-0x00000000053F0000-0x0000000005A18000-memory.dmp

          Filesize

          6.2MB

        • memory/4192-78-0x0000000007640000-0x0000000007651000-memory.dmp

          Filesize

          68KB

        • memory/4192-15-0x00000000027F0000-0x0000000002826000-memory.dmp

          Filesize

          216KB

        • memory/4192-89-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4192-27-0x0000000005A90000-0x0000000005AF6000-memory.dmp

          Filesize

          408KB

        • memory/4192-26-0x0000000005A20000-0x0000000005A86000-memory.dmp

          Filesize

          408KB

        • memory/4192-17-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4192-29-0x0000000005B00000-0x0000000005E54000-memory.dmp

          Filesize

          3.3MB

        • memory/4192-20-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4192-19-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4192-24-0x0000000005350000-0x0000000005372000-memory.dmp

          Filesize

          136KB

        • memory/4192-81-0x0000000007780000-0x000000000779A000-memory.dmp

          Filesize

          104KB

        • memory/4192-80-0x0000000007680000-0x0000000007694000-memory.dmp

          Filesize

          80KB

        • memory/4192-77-0x00000000076C0000-0x0000000007756000-memory.dmp

          Filesize

          600KB

        • memory/4192-74-0x0000000007A00000-0x000000000807A000-memory.dmp

          Filesize

          6.5MB

        • memory/4192-63-0x0000000071410000-0x000000007145C000-memory.dmp

          Filesize

          304KB

        • memory/4484-25-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/4484-91-0x0000000006A60000-0x0000000006AB0000-memory.dmp

          Filesize

          320KB

        • memory/4848-50-0x0000000006940000-0x000000000698C000-memory.dmp

          Filesize

          304KB

        • memory/4848-49-0x0000000006890000-0x00000000068AE000-memory.dmp

          Filesize

          120KB

        • memory/4848-76-0x0000000007C30000-0x0000000007C3A000-memory.dmp

          Filesize

          40KB

        • memory/4848-51-0x0000000007A50000-0x0000000007A82000-memory.dmp

          Filesize

          200KB

        • memory/4848-21-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4848-79-0x0000000007DF0000-0x0000000007DFE000-memory.dmp

          Filesize

          56KB

        • memory/4848-62-0x0000000006E60000-0x0000000006E7E000-memory.dmp

          Filesize

          120KB

        • memory/4848-52-0x0000000071410000-0x000000007145C000-memory.dmp

          Filesize

          304KB

        • memory/4848-82-0x0000000007EE0000-0x0000000007EE8000-memory.dmp

          Filesize

          32KB

        • memory/4848-75-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

          Filesize

          104KB

        • memory/4848-23-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4848-22-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4848-90-0x0000000074C60000-0x0000000075410000-memory.dmp

          Filesize

          7.7MB

        • memory/4848-64-0x0000000007A90000-0x0000000007B33000-memory.dmp

          Filesize

          652KB