Analysis

  • max time kernel
    149s
  • max time network
    274s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 03:38

General

  • Target

    ZXscQQ9xOnwb76m.exe

  • Size

    657KB

  • MD5

    8fa1eba5ff8f18b3b356c563b84a7d0e

  • SHA1

    c4eb24fea889e1f46415996b01b180b60a80c116

  • SHA256

    d2c572620387664910999bfc882aad621a21c28eef0adc4991c41c33a530e4cf

  • SHA512

    040d50c66a54ae462c854623bd9b208227f5300413598efde7b69a21f4f6cae67410bcfe628cb89286a6b7819566c920101bb832d2adef114638e09a1ec523c8

  • SSDEEP

    12288:1J+LwlI6WulHGj0EuIcpZTyfsai9GaorZX0Xodx6d9Kmlt4t8Y/n2aS7Azp3b3m6:fIlul0Hufe/iHalsTHf7Azp3SaeByIU5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.apexrnun.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    dU*wU0)yR;?4q|-#

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe
    "C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1940
    • 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\ZXscQQ9xOnwb76m.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3232
    • C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe
      "C:\Users\Admin\AppData\Local\Temp\ZXscQQ9xOnwb76m.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ZXscQQ9xOnwb76m.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uijfsmmf.4wq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1940-6-0x0000000006DA0000-0x0000000006DB2000-memory.dmp

    Filesize

    72KB

  • memory/1940-3-0x0000000005050000-0x00000000050E2000-memory.dmp

    Filesize

    584KB

  • memory/1940-4-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1940-5-0x0000000005010000-0x000000000501A000-memory.dmp

    Filesize

    40KB

  • memory/1940-15-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1940-7-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/1940-8-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1940-9-0x00000000070F0000-0x0000000007174000-memory.dmp

    Filesize

    528KB

  • memory/1940-10-0x0000000009800000-0x000000000989C000-memory.dmp

    Filesize

    624KB

  • memory/1940-0-0x000000007491E000-0x000000007491F000-memory.dmp

    Filesize

    4KB

  • memory/1940-2-0x0000000005560000-0x0000000005B04000-memory.dmp

    Filesize

    5.6MB

  • memory/1940-1-0x0000000000550000-0x00000000005FA000-memory.dmp

    Filesize

    680KB

  • memory/3232-51-0x0000000007190000-0x000000000719A000-memory.dmp

    Filesize

    40KB

  • memory/3232-47-0x00000000063A0000-0x00000000063BE000-memory.dmp

    Filesize

    120KB

  • memory/3232-61-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-18-0x0000000004ED0000-0x00000000054F8000-memory.dmp

    Filesize

    6.2MB

  • memory/3232-19-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-20-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3232-21-0x0000000004E30000-0x0000000004E52000-memory.dmp

    Filesize

    136KB

  • memory/3232-58-0x0000000007440000-0x0000000007448000-memory.dmp

    Filesize

    32KB

  • memory/3232-22-0x0000000005600000-0x0000000005666000-memory.dmp

    Filesize

    408KB

  • memory/3232-56-0x0000000007460000-0x000000000747A000-memory.dmp

    Filesize

    104KB

  • memory/3232-29-0x0000000005810000-0x0000000005B64000-memory.dmp

    Filesize

    3.3MB

  • memory/3232-34-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

    Filesize

    120KB

  • memory/3232-35-0x0000000005E70000-0x0000000005EBC000-memory.dmp

    Filesize

    304KB

  • memory/3232-36-0x00000000063D0000-0x0000000006402000-memory.dmp

    Filesize

    200KB

  • memory/3232-37-0x0000000070590000-0x00000000705DC000-memory.dmp

    Filesize

    304KB

  • memory/3232-16-0x0000000004860000-0x0000000004896000-memory.dmp

    Filesize

    216KB

  • memory/3232-48-0x0000000006FD0000-0x0000000007073000-memory.dmp

    Filesize

    652KB

  • memory/3232-49-0x0000000007760000-0x0000000007DDA000-memory.dmp

    Filesize

    6.5MB

  • memory/3232-50-0x0000000007120000-0x000000000713A000-memory.dmp

    Filesize

    104KB

  • memory/3232-55-0x0000000007360000-0x0000000007374000-memory.dmp

    Filesize

    80KB

  • memory/3232-52-0x00000000073A0000-0x0000000007436000-memory.dmp

    Filesize

    600KB

  • memory/3232-53-0x0000000007320000-0x0000000007331000-memory.dmp

    Filesize

    68KB

  • memory/3232-54-0x0000000007350000-0x000000000735E000-memory.dmp

    Filesize

    56KB

  • memory/4432-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4432-14-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4432-57-0x0000000006F30000-0x0000000006F80000-memory.dmp

    Filesize

    320KB

  • memory/4432-23-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4432-17-0x00000000058E0000-0x0000000005946000-memory.dmp

    Filesize

    408KB

  • memory/4432-62-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4432-63-0x0000000074910000-0x00000000750C0000-memory.dmp

    Filesize

    7.7MB