Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2023 16:46

General

  • Target

    36d948b545a839e073e4385095ccff42.exe

  • Size

    682KB

  • MD5

    36d948b545a839e073e4385095ccff42

  • SHA1

    5dc6d5e0d2eb725656dc180edecaa499b7be2348

  • SHA256

    6ccdcfcad42b18c4ef436f7b0968ef7d74c974f653987806636f448497df80b2

  • SHA512

    a0eae8b094d7d9d11b1d7ae92e2cdb53e3e54a1d262402e224515e506a972e728a94e3927a5479ef8d0a0364d741ad025145a77fd0c9b12a9ffcbd8f1ded7cd6

  • SSDEEP

    12288:ECqeJxISt4La3wx8b89QQxlyT5vrC1sdvO54vDQ4ZK:EeJrtQay8b86Qi5vmad2u0v

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://valvulasthermovalve.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!!

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36d948b545a839e073e4385095ccff42.exe
    "C:\Users\Admin\AppData\Local\Temp\36d948b545a839e073e4385095ccff42.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Users\Admin\AppData\Local\Temp\36d948b545a839e073e4385095ccff42.exe
      "C:\Users\Admin\AppData\Local\Temp\36d948b545a839e073e4385095ccff42.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2248-20-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/2248-1-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/2248-2-0x0000000004CE0000-0x0000000004D20000-memory.dmp

    Filesize

    256KB

  • memory/2248-3-0x0000000000420000-0x0000000000436000-memory.dmp

    Filesize

    88KB

  • memory/2248-4-0x0000000000440000-0x0000000000448000-memory.dmp

    Filesize

    32KB

  • memory/2248-5-0x0000000000490000-0x000000000049A000-memory.dmp

    Filesize

    40KB

  • memory/2248-6-0x0000000005250000-0x00000000052CC000-memory.dmp

    Filesize

    496KB

  • memory/2248-0-0x0000000000FF0000-0x00000000010A0000-memory.dmp

    Filesize

    704KB

  • memory/2732-22-0x0000000000F20000-0x0000000000F60000-memory.dmp

    Filesize

    256KB

  • memory/2732-26-0x0000000000F20000-0x0000000000F60000-memory.dmp

    Filesize

    256KB

  • memory/2732-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2732-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-21-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-25-0x0000000074B50000-0x000000007523E000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB