Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 12:29

General

  • Target

    z5rSUXEIzzh7EKv.exe

  • Size

    787KB

  • MD5

    2002f20b25f5f2ef8b7c9d8e1e98505e

  • SHA1

    43be7683b9ccd3561796a489fe04fdb7c7f64cca

  • SHA256

    604e0d2b69ac861705fc292ce937b33b57228df90675fa0784d8fb23d2d964d9

  • SHA512

    da54704137266bde73db8e2b45486fd223864f6e17aebafb726d333217bfbd75fc938c102d17829486cec8c1fee9465e347e7e699967736b4d4ccb3cffadc348

  • SSDEEP

    12288:lekaXNA1ugyIcHUAygkqTYoE1q/JBWxweSu/hyYG6AyKWtBEiG:lekqGugyPUAvkqTYoE1hHSehlTtaiG

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\z5rSUXEIzzh7EKv.exe
    "C:\Users\Admin\AppData\Local\Temp\z5rSUXEIzzh7EKv.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1000
    • 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\z5rSUXEIzzh7EKv.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Users\Admin\AppData\Local\Temp\z5rSUXEIzzh7EKv.exe
      "C:\Users\Admin\AppData\Local\Temp\z5rSUXEIzzh7EKv.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\z5rSUXEIzzh7EKv.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_giai2fbj.1v0.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1000-6-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

    Filesize

    64KB

  • memory/1000-3-0x0000000004C60000-0x0000000004CF2000-memory.dmp

    Filesize

    584KB

  • memory/1000-4-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1000-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

    Filesize

    40KB

  • memory/1000-2-0x0000000005170000-0x0000000005714000-memory.dmp

    Filesize

    5.6MB

  • memory/1000-7-0x000000007450E000-0x000000007450F000-memory.dmp

    Filesize

    4KB

  • memory/1000-8-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1000-9-0x0000000006570000-0x00000000065F4000-memory.dmp

    Filesize

    528KB

  • memory/1000-10-0x0000000008B40000-0x0000000008BDC000-memory.dmp

    Filesize

    624KB

  • memory/1000-0-0x000000007450E000-0x000000007450F000-memory.dmp

    Filesize

    4KB

  • memory/1000-1-0x0000000000130000-0x00000000001FA000-memory.dmp

    Filesize

    808KB

  • memory/1000-15-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1656-51-0x0000000007640000-0x000000000765A000-memory.dmp

    Filesize

    104KB

  • memory/1656-38-0x0000000070160000-0x00000000701AC000-memory.dmp

    Filesize

    304KB

  • memory/1656-62-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1656-19-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1656-18-0x0000000002A30000-0x0000000002A66000-memory.dmp

    Filesize

    216KB

  • memory/1656-21-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1656-22-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1656-20-0x00000000053F0000-0x0000000005A18000-memory.dmp

    Filesize

    6.2MB

  • memory/1656-23-0x0000000005B90000-0x0000000005BB2000-memory.dmp

    Filesize

    136KB

  • memory/1656-59-0x0000000007960000-0x0000000007968000-memory.dmp

    Filesize

    32KB

  • memory/1656-24-0x0000000005C30000-0x0000000005C96000-memory.dmp

    Filesize

    408KB

  • memory/1656-34-0x0000000005E80000-0x00000000061D4000-memory.dmp

    Filesize

    3.3MB

  • memory/1656-35-0x0000000006320000-0x000000000633E000-memory.dmp

    Filesize

    120KB

  • memory/1656-36-0x00000000063C0000-0x000000000640C000-memory.dmp

    Filesize

    304KB

  • memory/1656-37-0x00000000068F0000-0x0000000006922000-memory.dmp

    Filesize

    200KB

  • memory/1656-58-0x0000000007980000-0x000000000799A000-memory.dmp

    Filesize

    104KB

  • memory/1656-48-0x0000000006930000-0x000000000694E000-memory.dmp

    Filesize

    120KB

  • memory/1656-49-0x0000000007510000-0x00000000075B3000-memory.dmp

    Filesize

    652KB

  • memory/1656-50-0x0000000007C90000-0x000000000830A000-memory.dmp

    Filesize

    6.5MB

  • memory/1656-57-0x0000000007880000-0x0000000007894000-memory.dmp

    Filesize

    80KB

  • memory/1656-52-0x00000000076B0000-0x00000000076BA000-memory.dmp

    Filesize

    40KB

  • memory/1656-53-0x00000000078C0000-0x0000000007956000-memory.dmp

    Filesize

    600KB

  • memory/1656-54-0x0000000007840000-0x0000000007851000-memory.dmp

    Filesize

    68KB

  • memory/1656-56-0x0000000007870000-0x000000000787E000-memory.dmp

    Filesize

    56KB

  • memory/2756-55-0x0000000006530000-0x0000000006580000-memory.dmp

    Filesize

    320KB

  • memory/2756-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2756-16-0x0000000004FF0000-0x0000000005056000-memory.dmp

    Filesize

    408KB

  • memory/2756-14-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2756-17-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2756-63-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB