Analysis

  • max time kernel
    51s
  • max time network
    58s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 11:31

General

  • Target

    b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe

  • Size

    755KB

  • MD5

    69eb8a758814ce93b09578f47aba4c19

  • SHA1

    66850a40b2b77f8f89f8882a5f8aecc87110945e

  • SHA256

    b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26

  • SHA512

    df1d61ea9f993b311949e7cef7137c52fe367c75fe6bfa1a6c524376c5894f3c8f94b687814a769a44e83e626556bcf4b8b12f5d72b7924e220012d332eaaeae

  • SSDEEP

    12288:4bKDA7hW9s72Rw4iJQPxUCbwlM5cd39KKcZuoni5Y2rKDEbnv77PACR5leZlN2b:4bPWO7D4iJq0lM5EQzjngLHDDA+erob

Malware Config

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 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 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe
    "C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe
      "C:\Users\Admin\AppData\Local\Temp\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b2183760768b6dffb3c3f4c28510c6e32cae125d46f5d4e046bbdfd860d46b26.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1468-10-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1468-18-0x0000000074800000-0x0000000074FB0000-memory.dmp
    Filesize

    7.7MB

  • memory/1468-17-0x0000000006A90000-0x0000000006AE0000-memory.dmp
    Filesize

    320KB

  • memory/1468-16-0x00000000054E0000-0x0000000005546000-memory.dmp
    Filesize

    408KB

  • memory/1468-15-0x0000000074800000-0x0000000074FB0000-memory.dmp
    Filesize

    7.7MB

  • memory/1468-14-0x0000000074800000-0x0000000074FB0000-memory.dmp
    Filesize

    7.7MB

  • memory/4600-4-0x0000000004F90000-0x0000000004F9A000-memory.dmp
    Filesize

    40KB

  • memory/4600-8-0x000000000A1B0000-0x000000000A234000-memory.dmp
    Filesize

    528KB

  • memory/4600-9-0x0000000008F90000-0x000000000902C000-memory.dmp
    Filesize

    624KB

  • memory/4600-7-0x0000000009EF0000-0x0000000009F00000-memory.dmp
    Filesize

    64KB

  • memory/4600-6-0x0000000007AD0000-0x0000000007AF2000-memory.dmp
    Filesize

    136KB

  • memory/4600-5-0x0000000074800000-0x0000000074FB0000-memory.dmp
    Filesize

    7.7MB

  • memory/4600-13-0x0000000074800000-0x0000000074FB0000-memory.dmp
    Filesize

    7.7MB

  • memory/4600-0-0x000000007480E000-0x000000007480F000-memory.dmp
    Filesize

    4KB

  • memory/4600-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp
    Filesize

    584KB

  • memory/4600-2-0x0000000005370000-0x0000000005914000-memory.dmp
    Filesize

    5.6MB

  • memory/4600-1-0x0000000000410000-0x00000000004D4000-memory.dmp
    Filesize

    784KB