Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 18:07

General

  • Target

    3ab485299c39c8a89e0d7031a8d0ab6b.exe

  • Size

    859KB

  • MD5

    3ab485299c39c8a89e0d7031a8d0ab6b

  • SHA1

    7fd60290d1e9605914b7c911ebd397cd4c462e46

  • SHA256

    7c09535cd87ef7bd13d91b73e029c904c8905b700d935e39d9375c60bf17fb71

  • SHA512

    1118ee9ef51bdde20b23ef622fea1513f17951a9d0f2b1ad167405849c3cd2769d08d8c9cca2f47eaf323b199ac71474956af996924618b14c39da8a356be322

  • SSDEEP

    12288:4NUKrOl2dZbnt5h45tQ/VZmZkZYKHiu7zCy4zof8CWiiNsqbVHa4QPKuJ:4NHql2dZr945t8VZmZkK7wuBm8jFVHa

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    MAIL.aldhanna.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Aldhanna@2020

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ab485299c39c8a89e0d7031a8d0ab6b.exe
    "C:\Users\Admin\AppData\Local\Temp\3ab485299c39c8a89e0d7031a8d0ab6b.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fNXEYRQBk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBA95.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1052
    • C:\Users\Admin\AppData\Local\Temp\3ab485299c39c8a89e0d7031a8d0ab6b.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4924-10-0x0000000005CD0000-0x0000000005D68000-memory.dmp

    Filesize

    608KB

  • memory/4924-8-0x0000000003480000-0x0000000003494000-memory.dmp

    Filesize

    80KB

  • memory/4924-4-0x0000000008040000-0x00000000080D2000-memory.dmp

    Filesize

    584KB

  • memory/4924-5-0x00000000082B0000-0x00000000082C0000-memory.dmp

    Filesize

    64KB

  • memory/4924-7-0x0000000008200000-0x0000000008256000-memory.dmp

    Filesize

    344KB

  • memory/4924-6-0x0000000007FC0000-0x0000000007FCA000-memory.dmp

    Filesize

    40KB

  • memory/4924-1-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-12-0x00000000084E0000-0x0000000008546000-memory.dmp

    Filesize

    408KB

  • memory/4924-11-0x0000000007D70000-0x0000000007DBE000-memory.dmp

    Filesize

    312KB

  • memory/4924-9-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-3-0x0000000008550000-0x0000000008AF4000-memory.dmp

    Filesize

    5.6MB

  • memory/4924-2-0x0000000007F00000-0x0000000007F9C000-memory.dmp

    Filesize

    624KB

  • memory/4924-0-0x0000000000F90000-0x000000000106E000-memory.dmp

    Filesize

    888KB

  • memory/4924-19-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-20-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-21-0x00000000050F0000-0x0000000005100000-memory.dmp

    Filesize

    64KB

  • memory/4996-16-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4996-22-0x0000000005380000-0x0000000005398000-memory.dmp

    Filesize

    96KB

  • memory/4996-23-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-24-0x00000000050F0000-0x0000000005100000-memory.dmp

    Filesize

    64KB

  • memory/4996-25-0x00000000065A0000-0x00000000065F0000-memory.dmp

    Filesize

    320KB

  • memory/4996-26-0x00000000050F0000-0x0000000005100000-memory.dmp

    Filesize

    64KB

  • memory/4996-27-0x00000000050F0000-0x0000000005100000-memory.dmp

    Filesize

    64KB