Analysis

  • max time kernel
    151s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2024 01:20

General

  • Target

    95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe

  • Size

    731KB

  • MD5

    17f500de2cd71c52cdaae07f2a290c8a

  • SHA1

    e88cfdfb4f9c30671d03fcdb2e9b85d6318bbc3f

  • SHA256

    95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36

  • SHA512

    61590ce60027a26defa2fd04d515e7242545ecd6893b7568a799ab2b6b34d16390562985be5e1f16bd7bd5dbb242d29adc291d1e68efbadb829705265c8713c6

  • SSDEEP

    12288:0g4CMwp1SZUfek6vcaB5PXpPdJFyGn7xlfmE4RA36XbiiVWAmkR:LSkeklaB/1/jdlfmQQFL

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.thanhancompony.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    aSkIhV^3

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 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe
    "C:\Users\Admin\AppData\Local\Temp\95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe
      "C:\Users\Admin\AppData\Local\Temp\95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4460
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3896 --field-trial-handle=2808,i,4621512294509789388,1545966267740426092,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1912

    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

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1796-8-0x0000000005210000-0x000000000521C000-memory.dmp
      Filesize

      48KB

    • memory/1796-3-0x0000000004FF0000-0x0000000005082000-memory.dmp
      Filesize

      584KB

    • memory/1796-9-0x00000000066B0000-0x0000000006734000-memory.dmp
      Filesize

      528KB

    • memory/1796-1-0x00000000004C0000-0x0000000000578000-memory.dmp
      Filesize

      736KB

    • memory/1796-5-0x0000000004F70000-0x0000000004F7A000-memory.dmp
      Filesize

      40KB

    • memory/1796-6-0x0000000005240000-0x00000000052DC000-memory.dmp
      Filesize

      624KB

    • memory/1796-7-0x00000000051E0000-0x00000000051F2000-memory.dmp
      Filesize

      72KB

    • memory/1796-0-0x0000000074A80000-0x0000000075230000-memory.dmp
      Filesize

      7.7MB

    • memory/1796-14-0x0000000074A80000-0x0000000075230000-memory.dmp
      Filesize

      7.7MB

    • memory/1796-2-0x0000000005500000-0x0000000005AA4000-memory.dmp
      Filesize

      5.6MB

    • memory/1796-4-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
      Filesize

      64KB

    • memory/4460-13-0x0000000074A80000-0x0000000075230000-memory.dmp
      Filesize

      7.7MB

    • memory/4460-19-0x0000000005020000-0x0000000005030000-memory.dmp
      Filesize

      64KB

    • memory/4460-15-0x0000000005020000-0x0000000005030000-memory.dmp
      Filesize

      64KB

    • memory/4460-16-0x0000000004F30000-0x0000000004F96000-memory.dmp
      Filesize

      408KB

    • memory/4460-17-0x0000000006480000-0x00000000064D0000-memory.dmp
      Filesize

      320KB

    • memory/4460-18-0x0000000074A80000-0x0000000075230000-memory.dmp
      Filesize

      7.7MB

    • memory/4460-10-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB