Analysis

  • max time kernel
    140s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 16:57

General

  • Target

    invoice CHN1080769.exe

  • Size

    731KB

  • MD5

    81cb8ea8d9b46383fcb2a1a46e8b88bc

  • SHA1

    9eb657a5d0836dbc323fc3c129e133c14f99d7d1

  • SHA256

    fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0

  • SHA512

    8620f2376ca0ae293e9eebb8335e2fe63cf420ddfe00de4f0532424e816ced1e64eef314c02f4f74b9cb4f82a86f543dc435dcb92e6ad2d3dad949e5a258c705

  • SSDEEP

    12288:bYWET/mr9KfW+G84wBj5J3MvgHUgwszbpy+uPnO/FdPa4g+m/bb821RMSQkR:bYWtjV+J8oHUgwszc+uPaPnO/bbJJ

Malware Config

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.

  • 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).

  • 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice CHN1080769.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4264
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NNSwwLIbU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NNSwwLIbU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC37A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4604
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4368
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:4360
        • 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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2200
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4164 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:5004

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c0pt0mv2.2dz.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmpC37A.tmp

          Filesize

          1KB

          MD5

          bc39035c1365afd41bb11d2bd6850a63

          SHA1

          eca5911944d09d9fc8c58ba8b9aef763c295f7e8

          SHA256

          5e50954923ce28df04a9c5485a6799efd3164efa7e29daa25775dce0478b92d2

          SHA512

          04fbcef68f9034b96b183fcd60bef0d29e6acf74db9606e9efff5cb0deebd6275f43981a5b38c0a74e78886a44e944dbe9f152450fb0e275d486c23aa59b9113

        • memory/376-53-0x0000000006D70000-0x0000000006DA2000-memory.dmp

          Filesize

          200KB

        • memory/376-81-0x0000000007290000-0x00000000072A1000-memory.dmp

          Filesize

          68KB

        • memory/376-79-0x0000000007100000-0x000000000710A000-memory.dmp

          Filesize

          40KB

        • memory/376-77-0x00000000076E0000-0x0000000007D5A000-memory.dmp

          Filesize

          6.5MB

        • memory/376-21-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/376-55-0x0000000070930000-0x000000007097C000-memory.dmp

          Filesize

          304KB

        • memory/376-51-0x00000000062C0000-0x000000000630C000-memory.dmp

          Filesize

          304KB

        • memory/376-50-0x0000000005D70000-0x0000000005D8E000-memory.dmp

          Filesize

          120KB

        • memory/376-85-0x00000000073B0000-0x00000000073B8000-memory.dmp

          Filesize

          32KB

        • memory/376-25-0x0000000004D80000-0x0000000004DA2000-memory.dmp

          Filesize

          136KB

        • memory/376-24-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/376-23-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/376-89-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/2200-26-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2200-76-0x0000000005F90000-0x0000000005FE0000-memory.dmp

          Filesize

          320KB

        • memory/4264-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

          Filesize

          4KB

        • memory/4264-11-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

          Filesize

          4KB

        • memory/4264-3-0x0000000004AE0000-0x0000000004B72000-memory.dmp

          Filesize

          584KB

        • memory/4264-12-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4264-4-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4264-6-0x0000000007330000-0x0000000007352000-memory.dmp

          Filesize

          136KB

        • memory/4264-1-0x0000000000010000-0x00000000000CA000-memory.dmp

          Filesize

          744KB

        • memory/4264-2-0x0000000005090000-0x0000000005634000-memory.dmp

          Filesize

          5.6MB

        • memory/4264-10-0x0000000010450000-0x00000000104EC000-memory.dmp

          Filesize

          624KB

        • memory/4264-32-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4264-5-0x0000000004A80000-0x0000000004A8A000-memory.dmp

          Filesize

          40KB

        • memory/4264-9-0x00000000044A0000-0x0000000004524000-memory.dmp

          Filesize

          528KB

        • memory/4264-8-0x000000000C9B0000-0x000000000C9C0000-memory.dmp

          Filesize

          64KB

        • memory/4264-7-0x00000000099A0000-0x00000000099AC000-memory.dmp

          Filesize

          48KB

        • memory/4980-28-0x0000000005310000-0x0000000005376000-memory.dmp

          Filesize

          408KB

        • memory/4980-27-0x0000000005230000-0x0000000005296000-memory.dmp

          Filesize

          408KB

        • memory/4980-54-0x0000000070930000-0x000000007097C000-memory.dmp

          Filesize

          304KB

        • memory/4980-75-0x0000000006AC0000-0x0000000006B63000-memory.dmp

          Filesize

          652KB

        • memory/4980-46-0x0000000005400000-0x0000000005754000-memory.dmp

          Filesize

          3.3MB

        • memory/4980-20-0x0000000004AF0000-0x0000000005118000-memory.dmp

          Filesize

          6.2MB

        • memory/4980-78-0x0000000006DE0000-0x0000000006DFA000-memory.dmp

          Filesize

          104KB

        • memory/4980-70-0x0000000006060000-0x000000000607E000-memory.dmp

          Filesize

          120KB

        • memory/4980-80-0x0000000007060000-0x00000000070F6000-memory.dmp

          Filesize

          600KB

        • memory/4980-17-0x0000000002110000-0x0000000002146000-memory.dmp

          Filesize

          216KB

        • memory/4980-82-0x0000000007010000-0x000000000701E000-memory.dmp

          Filesize

          56KB

        • memory/4980-83-0x0000000007020000-0x0000000007034000-memory.dmp

          Filesize

          80KB

        • memory/4980-84-0x0000000007120000-0x000000000713A000-memory.dmp

          Filesize

          104KB

        • memory/4980-18-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4980-88-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB

        • memory/4980-19-0x0000000074C10000-0x00000000753C0000-memory.dmp

          Filesize

          7.7MB