Analysis

  • max time kernel
    245s
  • max time network
    336s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 16:12

General

  • Target

    aSaoUIk11KuTtCD.exe

  • Size

    869KB

  • MD5

    afec564aed0802011db8e1ccf8f73d93

  • SHA1

    e72cc3f7a9ab5b3b9e609ee650d0a20dd4aa79a4

  • SHA256

    3c0aa4d30fb527f615c2bcc4ea18a379bf5c921f73fbf54fd78d4d8969dcf2e3

  • SHA512

    4df2ed2be260937fea5f7ddf9389fd6a9c8a884885432853a7caaccdb406f0e965790338845a128469165f94ea863f0980f961ea1d55f2709be80b3f686c0c0d

  • SSDEEP

    24576:vAfzEvi1/g3JteXFP0C40YeUw50vH2RjsBC:GQi1YJgrD/UwnQM

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.chinarcnd.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mNQrnR%3

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.chinarcnd.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mNQrnR%3

Signatures

  • AgentTesla

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

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aSaoUIk11KuTtCD.exe
    "C:\Users\Admin\AppData\Local\Temp\aSaoUIk11KuTtCD.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\aSaoUIk11KuTtCD.exe
      "C:\Users\Admin\AppData\Local\Temp\aSaoUIk11KuTtCD.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/680-64-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-63-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-70-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-68-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-66-0x0000000000435A7E-mapping.dmp

  • memory/680-61-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-65-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/680-60-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/756-55-0x0000000074E61000-0x0000000074E63000-memory.dmp

    Filesize

    8KB

  • memory/756-54-0x0000000000DB0000-0x0000000000E90000-memory.dmp

    Filesize

    896KB

  • memory/756-59-0x0000000004F90000-0x0000000005004000-memory.dmp

    Filesize

    464KB

  • memory/756-58-0x0000000007DF0000-0x0000000007E9C000-memory.dmp

    Filesize

    688KB

  • memory/756-57-0x0000000000320000-0x000000000032C000-memory.dmp

    Filesize

    48KB

  • memory/756-56-0x0000000000450000-0x0000000000468000-memory.dmp

    Filesize

    96KB