Analysis

  • max time kernel
    119s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2024 11:16

General

  • Target

    dIg1H3IegSv8WYB.exe

  • Size

    789KB

  • MD5

    7083b7a10e7b74aea9cf6c6b9dd3fe45

  • SHA1

    e3769b1fa1dbcdef6bc7efe18aa0cf21e9507cd0

  • SHA256

    83688d7b2b5feff8ecf5ab902d206187815d1759858129e85d9b2e2673d935b4

  • SHA512

    f3b174947e2a2369303b7a6478540cdcf7d075781883d55e2f9bc6aa341438be378e7455c27f6562af81bf4c292941b047fd690cada210f43c9574d0b0135229

  • SSDEEP

    6144:9ENaneCZj70XxIQRVA+bIRsli6A7kh9iaqTHMpDaTJM906xm/2qjYXhflK73GVGM:+KQIMnbQKymia4HcDaTJw06IXjGJ7N5

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.

  • 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 3 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\dIg1H3IegSv8WYB.exe
    "C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.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:1644
    • 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\dIg1H3IegSv8WYB.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5000
    • C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe
      "C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe"
      2⤵
        PID:4664
      • C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe
        "C:\Users\Admin\AppData\Local\Temp\dIg1H3IegSv8WYB.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dIg1H3IegSv8WYB.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bw42res5.bav.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1644-10-0x000000000BF10000-0x000000000BFAC000-memory.dmp

      Filesize

      624KB

    • memory/1644-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

      Filesize

      5.6MB

    • memory/1644-4-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/1644-5-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

      Filesize

      40KB

    • memory/1644-6-0x0000000005130000-0x000000000514E000-memory.dmp

      Filesize

      120KB

    • memory/1644-7-0x00000000750DE000-0x00000000750DF000-memory.dmp

      Filesize

      4KB

    • memory/1644-8-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/1644-9-0x0000000004960000-0x00000000049E4000-memory.dmp

      Filesize

      528KB

    • memory/1644-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

      Filesize

      4KB

    • memory/1644-3-0x0000000004F30000-0x0000000004FC2000-memory.dmp

      Filesize

      584KB

    • memory/1644-1-0x00000000005D0000-0x000000000069C000-memory.dmp

      Filesize

      816KB

    • memory/1644-15-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-14-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-63-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/2804-17-0x0000000005530000-0x0000000005596000-memory.dmp

      Filesize

      408KB

    • memory/2804-59-0x0000000006B40000-0x0000000006B90000-memory.dmp

      Filesize

      320KB

    • memory/2804-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2804-22-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5000-23-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5000-49-0x0000000007070000-0x0000000007113000-memory.dmp

      Filesize

      652KB

    • memory/5000-21-0x00000000050A0000-0x0000000005106000-memory.dmp

      Filesize

      408KB

    • memory/5000-24-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5000-30-0x00000000058E0000-0x0000000005C34000-memory.dmp

      Filesize

      3.3MB

    • memory/5000-19-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5000-35-0x0000000005E80000-0x0000000005E9E000-memory.dmp

      Filesize

      120KB

    • memory/5000-36-0x0000000005F10000-0x0000000005F5C000-memory.dmp

      Filesize

      304KB

    • memory/5000-37-0x0000000006E30000-0x0000000006E62000-memory.dmp

      Filesize

      200KB

    • memory/5000-38-0x0000000070D50000-0x0000000070D9C000-memory.dmp

      Filesize

      304KB

    • memory/5000-48-0x0000000006E10000-0x0000000006E2E000-memory.dmp

      Filesize

      120KB

    • memory/5000-20-0x0000000004F00000-0x0000000004F22000-memory.dmp

      Filesize

      136KB

    • memory/5000-50-0x0000000007810000-0x0000000007E8A000-memory.dmp

      Filesize

      6.5MB

    • memory/5000-51-0x00000000071C0000-0x00000000071DA000-memory.dmp

      Filesize

      104KB

    • memory/5000-52-0x0000000007230000-0x000000000723A000-memory.dmp

      Filesize

      40KB

    • memory/5000-53-0x0000000007440000-0x00000000074D6000-memory.dmp

      Filesize

      600KB

    • memory/5000-54-0x00000000073C0000-0x00000000073D1000-memory.dmp

      Filesize

      68KB

    • memory/5000-55-0x00000000073F0000-0x00000000073FE000-memory.dmp

      Filesize

      56KB

    • memory/5000-56-0x0000000007400000-0x0000000007414000-memory.dmp

      Filesize

      80KB

    • memory/5000-57-0x0000000007500000-0x000000000751A000-memory.dmp

      Filesize

      104KB

    • memory/5000-58-0x00000000074E0000-0x00000000074E8000-memory.dmp

      Filesize

      32KB

    • memory/5000-18-0x0000000005110000-0x0000000005738000-memory.dmp

      Filesize

      6.2MB

    • memory/5000-62-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/5000-16-0x00000000025B0000-0x00000000025E6000-memory.dmp

      Filesize

      216KB