Analysis

  • max time kernel
    122s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 14:49

General

  • Target

    8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e.exe

  • Size

    722KB

  • MD5

    b4d30842f7791c314b5793b467e2e40c

  • SHA1

    4fd12e0aa4c9843ff3b42aaf3c2efccb94d76124

  • SHA256

    8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e

  • SHA512

    3a3ff969fafcc390654e02ef1bb37687dd797fdcb96a9574e5d1e5166b548b75569bcbc2ef4fb78d784c1b0dd987c2e79988e17bc09d636952143dc047444c4e

  • SSDEEP

    12288:+jv732EXsNCjClPiCrybSHcPw+DN53qPIfm6JIqQXElHnsKptYP9ciE8b7PXVj:qb2w6la4fAiPI+6CElHntfYPaiE8b7tj

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 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
  • 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 11 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\8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e.exe
    "C:\Users\Admin\AppData\Local\Temp\8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1148
    • C:\Users\Admin\AppData\Local\Temp\8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e.exe
      "C:\Users\Admin\AppData\Local\Temp\8048e53dd3e484c96e5f586ab9e4152a173364144ad9a50baa050222f61d3a9e.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2728

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1148-27-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB

  • memory/1148-1-0x0000000000F10000-0x0000000000FCA000-memory.dmp
    Filesize

    744KB

  • memory/1148-2-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB

  • memory/1148-3-0x0000000005090000-0x000000000514A000-memory.dmp
    Filesize

    744KB

  • memory/1148-4-0x00000000003D0000-0x00000000003F2000-memory.dmp
    Filesize

    136KB

  • memory/1148-5-0x0000000000500000-0x000000000050C000-memory.dmp
    Filesize

    48KB

  • memory/1148-6-0x0000000000510000-0x0000000000520000-memory.dmp
    Filesize

    64KB

  • memory/1148-7-0x000000000D2B0000-0x000000000D334000-memory.dmp
    Filesize

    528KB

  • memory/1148-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp
    Filesize

    4KB

  • memory/1148-9-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB

  • memory/1148-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp
    Filesize

    4KB

  • memory/2728-10-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2728-16-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-12-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-14-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-26-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2728-28-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-29-0x0000000074D40000-0x000000007542E000-memory.dmp
    Filesize

    6.9MB