Analysis

  • max time kernel
    19s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17/08/2024, 08:40

General

  • Target

    invoice CHN1080769.exe

  • Size

    758KB

  • MD5

    1e69909fa310d96fc0a5561cbab640ae

  • SHA1

    68457542f11941be255c312497d741138bbbcc0a

  • SHA256

    00e001de6abc566bef2764d860c3d80f7a5907d3e32c23f53cd9d8182dd2e632

  • SHA512

    833f550ce0244075a8701f9407ba90ba71f1ad167045716ad54eca585fe04f35029061280a5bc5d130e2e83d8637d36ebb4b291b16fdbe64929db9f55e51c62a

  • SSDEEP

    12288:3AX2iNz42d8l6dJBWrOQce0fVwGvm/6rvtkjbrl/79v3mEmpwCEcLkR:u1x4+JUethm/6jtkbRB4pXEcO

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1900
    • 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\invoice CHN1080769.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1840
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CrCGyEh.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CrCGyEh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2359.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2720
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:2548
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2140

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp2359.tmp

      Filesize

      1KB

      MD5

      3cffe497684040839ef1ceb5a1cbdfb2

      SHA1

      b17dde491ea7ef48615d7d181e1c52fe2b2750aa

      SHA256

      9fabc2d5ad6399ca066613ed6dfacf49c2399f1bbc6616213cccfca7ab410328

      SHA512

      aaf092b93a9dbb36ccaa90de99d10a65fc17d168e95729d28142f4983b682c1fc6781ef8d20a2a0016e0533fac2fbac34ebde5a7cf5ea8243835e8007e19995d

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

      Filesize

      7KB

      MD5

      a72b64c966298722b0ecb8878950c926

      SHA1

      2a19f185220171c34bc1741c809918e3200bd896

      SHA256

      bd391a10bf49fa0c968c8c27be4c1319052844ff5d06e2588bb9eead15d81352

      SHA512

      cd31eef6a1204fbf3f24b6126a34c2d22ae7987c1679fa5632afa0d8449ccf8e372af705617d28b2a4d0061f4d83f3892e3c285627449c6c7a027b58946a8e2e

    • memory/1900-4-0x000000007409E000-0x000000007409F000-memory.dmp

      Filesize

      4KB

    • memory/1900-3-0x00000000007B0000-0x00000000007CE000-memory.dmp

      Filesize

      120KB

    • memory/1900-0-0x000000007409E000-0x000000007409F000-memory.dmp

      Filesize

      4KB

    • memory/1900-5-0x0000000074090000-0x000000007477E000-memory.dmp

      Filesize

      6.9MB

    • memory/1900-6-0x0000000000540000-0x0000000000556000-memory.dmp

      Filesize

      88KB

    • memory/1900-7-0x0000000005E60000-0x0000000005EE4000-memory.dmp

      Filesize

      528KB

    • memory/1900-2-0x0000000074090000-0x000000007477E000-memory.dmp

      Filesize

      6.9MB

    • memory/1900-1-0x0000000001120000-0x00000000011E0000-memory.dmp

      Filesize

      768KB

    • memory/1900-33-0x0000000074090000-0x000000007477E000-memory.dmp

      Filesize

      6.9MB

    • memory/2140-22-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-24-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-32-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-30-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2140-26-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2140-20-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB