Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2024 01:17

General

  • Target

    ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe

  • Size

    616KB

  • MD5

    bf6bf52c08933859bfd3dd99641a219c

  • SHA1

    f42ad4696891fb22ab9acbf9a46b1a3cf5a93dd2

  • SHA256

    ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758

  • SHA512

    581518fd82e3d355f7a5e346ddde5d35559433f951c1473cc4b81d83e7998cd347b98ecc43158d8a9e3945e161e705e368a2bd3988017de350d3a71cd45022bb

  • SSDEEP

    12288:GSMa5WNcu0MFQT+UDa7ieoM/fuU/rTVv7Da0JTD2QYyewpPAvrxL7iyY:GHN8uQTFuumWU/rJSMvYsPAvrx6yY

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.yurel.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Tacim*Yurel

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe
    "C:\Users\Admin\AppData\Local\Temp\ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\Users\Admin\AppData\Local\Temp\ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe
      "C:\Users\Admin\AppData\Local\Temp\ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ca27ae5d9a450fbae4b1b5e9254f06b26ff8f06f17409d20493efed24d2fe758.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4044-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4044-21-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

    Filesize

    64KB

  • memory/4044-20-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4044-19-0x00000000066F0000-0x0000000006740000-memory.dmp

    Filesize

    320KB

  • memory/4044-18-0x0000000005120000-0x0000000005186000-memory.dmp

    Filesize

    408KB

  • memory/4044-17-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

    Filesize

    64KB

  • memory/4044-15-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4992-5-0x00000000054E0000-0x00000000054EA000-memory.dmp

    Filesize

    40KB

  • memory/4992-9-0x00000000086F0000-0x000000000878C000-memory.dmp

    Filesize

    624KB

  • memory/4992-10-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4992-11-0x0000000005620000-0x0000000005630000-memory.dmp

    Filesize

    64KB

  • memory/4992-8-0x0000000006140000-0x00000000061C4000-memory.dmp

    Filesize

    528KB

  • memory/4992-7-0x00000000054F0000-0x00000000054FC000-memory.dmp

    Filesize

    48KB

  • memory/4992-6-0x00000000054C0000-0x00000000054D2000-memory.dmp

    Filesize

    72KB

  • memory/4992-0-0x00000000009A0000-0x0000000000A40000-memory.dmp

    Filesize

    640KB

  • memory/4992-16-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB

  • memory/4992-4-0x0000000005620000-0x0000000005630000-memory.dmp

    Filesize

    64KB

  • memory/4992-3-0x0000000005420000-0x00000000054B2000-memory.dmp

    Filesize

    584KB

  • memory/4992-2-0x0000000005A90000-0x0000000006034000-memory.dmp

    Filesize

    5.6MB

  • memory/4992-1-0x0000000075180000-0x0000000075930000-memory.dmp

    Filesize

    7.7MB