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Analysis

  • max time kernel
    122s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 14:56

General

  • Target

    VEwgAwjEah8fGGy.exe

  • Size

    664KB

  • MD5

    6c345b6f51a1ea735759fc7af673acb5

  • SHA1

    c1721135ec26a5d02871ba9777303741790563db

  • SHA256

    dba0b5cdff4938b55552ada7a99627feb2f93eba71a14461f105bb6d2006eba3

  • SHA512

    561987951b0c80144b632db532436bf06880ef459ec7dadc0fd8fa9acdf170c4ed697c64c6c6cea3497f4673751dc3201e51e04fa656c390d231c3f093bfa569

  • SSDEEP

    12288:uHunnq7vANkjjEeNPgJiCk/3GHbrm+8/LQm0u5aR9QO+3tmrVy20:OunIvAS3ENJbW2HGNLQm0y0WGQ2

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    %qroUozO;(C2Rlyb

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 1 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 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.exe
    "C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.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:2764
    • 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\VEwgAwjEah8fGGy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3696
    • C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.exe
      "C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.exe"
      2⤵
        PID:1788
      • C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.exe
        "C:\Users\Admin\AppData\Local\Temp\VEwgAwjEah8fGGy.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2196

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\VEwgAwjEah8fGGy.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sqcht4d5.33r.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2196-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2196-20-0x0000000005580000-0x00000000055E6000-memory.dmp

      Filesize

      408KB

    • memory/2196-21-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2196-62-0x0000000006BE0000-0x0000000006C30000-memory.dmp

      Filesize

      320KB

    • memory/2196-63-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2196-15-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2764-5-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2764-9-0x0000000006C00000-0x0000000006C84000-memory.dmp

      Filesize

      528KB

    • memory/2764-10-0x0000000009350000-0x00000000093EC000-memory.dmp

      Filesize

      624KB

    • memory/2764-8-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2764-7-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

      Filesize

      4KB

    • memory/2764-6-0x0000000005BC0000-0x0000000005BD8000-memory.dmp

      Filesize

      96KB

    • memory/2764-14-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/2764-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

      Filesize

      4KB

    • memory/2764-4-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

      Filesize

      40KB

    • memory/2764-3-0x0000000005920000-0x00000000059B2000-memory.dmp

      Filesize

      584KB

    • memory/2764-2-0x0000000005ED0000-0x0000000006474000-memory.dmp

      Filesize

      5.6MB

    • memory/2764-1-0x0000000000E80000-0x0000000000F2C000-memory.dmp

      Filesize

      688KB

    • memory/3696-24-0x0000000005210000-0x0000000005276000-memory.dmp

      Filesize

      408KB

    • memory/3696-49-0x0000000007030000-0x00000000070D3000-memory.dmp

      Filesize

      652KB

    • memory/3696-22-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/3696-19-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/3696-23-0x0000000005170000-0x0000000005192000-memory.dmp

      Filesize

      136KB

    • memory/3696-34-0x0000000005950000-0x0000000005CA4000-memory.dmp

      Filesize

      3.3MB

    • memory/3696-35-0x0000000006020000-0x000000000603E000-memory.dmp

      Filesize

      120KB

    • memory/3696-36-0x0000000006060000-0x00000000060AC000-memory.dmp

      Filesize

      304KB

    • memory/3696-37-0x0000000006FF0000-0x0000000007022000-memory.dmp

      Filesize

      200KB

    • memory/3696-38-0x0000000070860000-0x00000000708AC000-memory.dmp

      Filesize

      304KB

    • memory/3696-48-0x0000000006610000-0x000000000662E000-memory.dmp

      Filesize

      120KB

    • memory/3696-18-0x00000000052B0000-0x00000000058D8000-memory.dmp

      Filesize

      6.2MB

    • memory/3696-50-0x00000000079A0000-0x000000000801A000-memory.dmp

      Filesize

      6.5MB

    • memory/3696-51-0x0000000007360000-0x000000000737A000-memory.dmp

      Filesize

      104KB

    • memory/3696-52-0x00000000073D0000-0x00000000073DA000-memory.dmp

      Filesize

      40KB

    • memory/3696-53-0x00000000075E0000-0x0000000007676000-memory.dmp

      Filesize

      600KB

    • memory/3696-54-0x0000000007560000-0x0000000007571000-memory.dmp

      Filesize

      68KB

    • memory/3696-55-0x0000000007590000-0x000000000759E000-memory.dmp

      Filesize

      56KB

    • memory/3696-56-0x00000000075A0000-0x00000000075B4000-memory.dmp

      Filesize

      80KB

    • memory/3696-57-0x00000000076A0000-0x00000000076BA000-memory.dmp

      Filesize

      104KB

    • memory/3696-58-0x0000000007680000-0x0000000007688000-memory.dmp

      Filesize

      32KB

    • memory/3696-61-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB

    • memory/3696-16-0x0000000002700000-0x0000000002736000-memory.dmp

      Filesize

      216KB

    • memory/3696-17-0x0000000074BE0000-0x0000000075390000-memory.dmp

      Filesize

      7.7MB