Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 08:29

General

  • Target

    CG230511007 double ring.pdf.exe

  • Size

    698KB

  • MD5

    4a2d8f6fac5f95fc384c689d9a5927a2

  • SHA1

    97ad59b9532706d2457eb10f6902b5e2f9442566

  • SHA256

    44c35217277fbfdde4251ac9c9bad106247b6f5ca5ca0f1dbaf8f3343b364af0

  • SHA512

    43d2340d3f49c138b9c0f880617f4f730837c8983fa4a254b16ecbaa5dfef38c1643a657cf04962e9897c56fa561ede9181e3be23d24510e8cf9e186bf77cdd2

  • SSDEEP

    12288:FzjLf30WH0IieBhVpz60zapdl4VOqXEkOdu+VGBecnFj8AzPmZ:djj0yyeb/5+lfk8iFFj8MPm

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1924
    • 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\CG230511007 double ring.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2080
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjrOWyCGkiBRP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1660
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjrOWyCGkiBRP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD07F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4868
    • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
      2⤵
        PID:2416
      • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2328

    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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      Filesize

      18KB

      MD5

      256e80f1fb5f2c591c1acb8e3065fe26

      SHA1

      38c1d1e10b25e656ffb146f4fa0be454e6ef77d9

      SHA256

      ae3885a3e1611fffa138ff7434ccbfc3c3f08573c6249cf0eddbe4f704bf8e21

      SHA512

      e3eb6fc55379bd987a1407613dc3ab6bcc551751cadca4baa3732a09078cd6111f460767eabb12313095e055b3567231c61d04d6d0b7f1c99139cb0768d56433

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4pas2xyf.dt2.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpD07F.tmp

      Filesize

      1KB

      MD5

      79d658b7226963085499074f34d0d816

      SHA1

      5c6de1079c0b83e9b7111f3ab9902ca32ef5771e

      SHA256

      1b572531e0319c3f883477424e5034d86f8f6deeb4c200e4d3169199df06a494

      SHA512

      12e05ded155bacd3e87b6d50233694507e769a5dc878815dcc9baab4c1ac5b31b5772dc7ba96ce9b5f2df17830163338d068574e36bd570a053035a112cb8937

    • memory/1660-76-0x00000000077F0000-0x00000000077FA000-memory.dmp

      Filesize

      40KB

    • memory/1660-75-0x0000000007780000-0x000000000779A000-memory.dmp

      Filesize

      104KB

    • memory/1660-89-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1660-83-0x0000000007AA0000-0x0000000007AA8000-memory.dmp

      Filesize

      32KB

    • memory/1660-80-0x00000000079B0000-0x00000000079BE000-memory.dmp

      Filesize

      56KB

    • memory/1660-77-0x0000000007A00000-0x0000000007A96000-memory.dmp

      Filesize

      600KB

    • memory/1660-74-0x0000000007DC0000-0x000000000843A000-memory.dmp

      Filesize

      6.5MB

    • memory/1660-64-0x0000000075790000-0x00000000757DC000-memory.dmp

      Filesize

      304KB

    • memory/1660-37-0x0000000005FB0000-0x0000000006304000-memory.dmp

      Filesize

      3.3MB

    • memory/1660-38-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1660-24-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1660-19-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-8-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

      Filesize

      4KB

    • memory/1924-2-0x00000000053E0000-0x0000000005984000-memory.dmp

      Filesize

      5.6MB

    • memory/1924-1-0x00000000003C0000-0x0000000000472000-memory.dmp

      Filesize

      712KB

    • memory/1924-6-0x0000000005100000-0x000000000519C000-memory.dmp

      Filesize

      624KB

    • memory/1924-9-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

      Filesize

      4KB

    • memory/1924-3-0x0000000004ED0000-0x0000000004F62000-memory.dmp

      Filesize

      584KB

    • memory/1924-48-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-5-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

      Filesize

      40KB

    • memory/1924-7-0x00000000077F0000-0x0000000007808000-memory.dmp

      Filesize

      96KB

    • memory/1924-4-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-10-0x0000000007910000-0x0000000007992000-memory.dmp

      Filesize

      520KB

    • memory/2080-18-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-16-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-90-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-51-0x00000000076F0000-0x0000000007722000-memory.dmp

      Filesize

      200KB

    • memory/2080-52-0x0000000075790000-0x00000000757DC000-memory.dmp

      Filesize

      304KB

    • memory/2080-50-0x0000000006B90000-0x0000000006BDC000-memory.dmp

      Filesize

      304KB

    • memory/2080-49-0x0000000006710000-0x000000000672E000-memory.dmp

      Filesize

      120KB

    • memory/2080-21-0x0000000005F90000-0x0000000005FB2000-memory.dmp

      Filesize

      136KB

    • memory/2080-17-0x00000000058A0000-0x0000000005EC8000-memory.dmp

      Filesize

      6.2MB

    • memory/2080-15-0x0000000002DE0000-0x0000000002E16000-memory.dmp

      Filesize

      216KB

    • memory/2080-63-0x0000000007730000-0x00000000077D3000-memory.dmp

      Filesize

      652KB

    • memory/2080-79-0x0000000007C30000-0x0000000007C41000-memory.dmp

      Filesize

      68KB

    • memory/2080-22-0x0000000006030000-0x0000000006096000-memory.dmp

      Filesize

      408KB

    • memory/2080-81-0x0000000007C70000-0x0000000007C84000-memory.dmp

      Filesize

      80KB

    • memory/2080-82-0x0000000007D70000-0x0000000007D8A000-memory.dmp

      Filesize

      104KB

    • memory/2080-23-0x00000000060A0000-0x0000000006106000-memory.dmp

      Filesize

      408KB

    • memory/2080-62-0x0000000006CC0000-0x0000000006CDE000-memory.dmp

      Filesize

      120KB

    • memory/2080-35-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2328-34-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2328-78-0x0000000006100000-0x0000000006150000-memory.dmp

      Filesize

      320KB