Analysis

  • max time kernel
    166s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 11:33

General

  • Target

    bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe

  • Size

    574KB

  • MD5

    271925836d2072b74f62a1f30f335fb7

  • SHA1

    dc25c270c6dccc9bde0d27474070031cb214e2f0

  • SHA256

    bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448

  • SHA512

    9437ec0bd3c5adbe5fc1eec79a9162262dd32fbfcb9308f9cb9b12d1b95159b0bddd77aa30481462feda70b5f232542eb880eda7308e020ed05c5ea987caaefa

  • SSDEEP

    12288:azZB1xM76UBvWnBHRJpcxSQBSAB9WfdLQ3TzAh+n0m07wZJ53c6z9J+tVb7k5:azZBA76UBmJeTqO3TUhY0m07Q53c6z91

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.electrobist.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cAP&5)Y*cPUE

Signatures

  • AgentTesla

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe
    "C:\Users\Admin\AppData\Local\Temp\bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2212

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1896-132-0x0000021572610000-0x00000215726A4000-memory.dmp

    Filesize

    592KB

  • memory/1896-133-0x00007FFA02680000-0x00007FFA03141000-memory.dmp

    Filesize

    10.8MB

  • memory/1896-136-0x00007FFA02680000-0x00007FFA03141000-memory.dmp

    Filesize

    10.8MB

  • memory/2212-134-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2212-135-0x0000000000437C6E-mapping.dmp

  • memory/2212-137-0x00000000054D0000-0x0000000005A74000-memory.dmp

    Filesize

    5.6MB

  • memory/2212-138-0x0000000005030000-0x00000000050CC000-memory.dmp

    Filesize

    624KB

  • memory/2212-139-0x0000000005DC0000-0x0000000005E26000-memory.dmp

    Filesize

    408KB

  • memory/2212-140-0x0000000006830000-0x0000000006880000-memory.dmp

    Filesize

    320KB

  • memory/2212-141-0x0000000006940000-0x00000000069D2000-memory.dmp

    Filesize

    584KB

  • memory/2212-142-0x0000000006930000-0x000000000693A000-memory.dmp

    Filesize

    40KB