Analysis

  • max time kernel
    134s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 01:21

General

  • Target

    101764ZAM2024.exe

  • Size

    932KB

  • MD5

    448e34edd4314a1bea54de04047eb8ea

  • SHA1

    bb23a88feb8f95a28445df75b2e86505b6982fbb

  • SHA256

    7caa9b212df10474e2c16e256ef16152196b75893ad5344bb5e78bb61528a85b

  • SHA512

    19f14f521f6a4cddd954a84f22219e22d595f3f40f93d2b2f1533a663146e9b175e3c2e528439672643050f7ca03924798a42efc56eb6474c5fddf795d8c3c14

  • SSDEEP

    12288:FeZoT+KS7yWLx8H0zMVuG0CWlDkDyjF86ikHZUhh13HxRqkR:gZoT+KS7ygGUUP0RuujFV5Hahv3x3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hotelroyal.com.pl
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    W0xw6jA.Hdr3

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\101764ZAM2024.exe
    "C:\Users\Admin\AppData\Local\Temp\101764ZAM2024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Users\Admin\AppData\Local\Temp\101764ZAM2024.exe
      "C:\Users\Admin\AppData\Local\Temp\101764ZAM2024.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5556

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\101764ZAM2024.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3448-8-0x0000000006A50000-0x0000000006AD2000-memory.dmp
    Filesize

    520KB

  • memory/3448-4-0x00000000750D0000-0x0000000075880000-memory.dmp
    Filesize

    7.7MB

  • memory/3448-9-0x00000000090C0000-0x000000000915C000-memory.dmp
    Filesize

    624KB

  • memory/3448-5-0x00000000051C0000-0x00000000051CA000-memory.dmp
    Filesize

    40KB

  • memory/3448-14-0x00000000750D0000-0x0000000075880000-memory.dmp
    Filesize

    7.7MB

  • memory/3448-6-0x00000000052B0000-0x00000000052CA000-memory.dmp
    Filesize

    104KB

  • memory/3448-7-0x00000000052E0000-0x00000000052F0000-memory.dmp
    Filesize

    64KB

  • memory/3448-1-0x0000000000770000-0x000000000085C000-memory.dmp
    Filesize

    944KB

  • memory/3448-3-0x0000000005120000-0x00000000051B2000-memory.dmp
    Filesize

    584KB

  • memory/3448-2-0x0000000005630000-0x0000000005BD4000-memory.dmp
    Filesize

    5.6MB

  • memory/3448-0-0x00000000750DE000-0x00000000750DF000-memory.dmp
    Filesize

    4KB

  • memory/5556-13-0x00000000750D0000-0x0000000075880000-memory.dmp
    Filesize

    7.7MB

  • memory/5556-10-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/5556-15-0x00000000750D0000-0x0000000075880000-memory.dmp
    Filesize

    7.7MB

  • memory/5556-16-0x0000000005680000-0x00000000056E6000-memory.dmp
    Filesize

    408KB

  • memory/5556-18-0x00000000066D0000-0x0000000006720000-memory.dmp
    Filesize

    320KB

  • memory/5556-19-0x00000000750D0000-0x0000000075880000-memory.dmp
    Filesize

    7.7MB