Analysis

  • max time kernel
    51s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 02:07

General

  • Target

    SKMBT ref 11062024.scr

  • Size

    764KB

  • MD5

    d50275bec33aa7fcbbc5e9e3efb7086f

  • SHA1

    6fc77e994f56af643ec5c429c2da401d1fcffda4

  • SHA256

    753cdbf4b5b1e61e9d56b9c40a157903a3a346595160c5d2e1c766ffde730323

  • SHA512

    5b5b5ecee7ae9b6cc0c8dca3f49fe14b123dc5303b954c7008a84b2b2f1972c0b8b515a1afa6fccf9225a90c02b50efa67123b8a9f83dd021ba7ce459ad7bf4a

  • SSDEEP

    12288:8lOKjCJAQC/4fBtLDvM7BlH7m/LXPYJk4gRJ5llIhmdiqACR5leZlNo:k4AD4fPw7BgLPYJkr/d3A+er

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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr
    "C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr
      "C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr"
      2⤵
        PID:2524
      • C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr
        "C:\Users\Admin\AppData\Local\Temp\SKMBT ref 11062024.scr"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4628

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SKMBT ref 11062024.scr.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1856-8-0x0000000006690000-0x0000000006716000-memory.dmp

      Filesize

      536KB

    • memory/1856-5-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1856-9-0x000000000D5A0000-0x000000000D63C000-memory.dmp

      Filesize

      624KB

    • memory/1856-4-0x0000000005210000-0x000000000521A000-memory.dmp

      Filesize

      40KB

    • memory/1856-13-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1856-6-0x0000000005700000-0x0000000005722000-memory.dmp

      Filesize

      136KB

    • memory/1856-7-0x0000000002B40000-0x0000000002B50000-memory.dmp

      Filesize

      64KB

    • memory/1856-1-0x00000000006D0000-0x0000000000796000-memory.dmp

      Filesize

      792KB

    • memory/1856-3-0x0000000005170000-0x0000000005202000-memory.dmp

      Filesize

      584KB

    • memory/1856-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

      Filesize

      5.6MB

    • memory/1856-0-0x000000007484E000-0x000000007484F000-memory.dmp

      Filesize

      4KB

    • memory/4628-10-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4628-15-0x0000000005810000-0x0000000005876000-memory.dmp

      Filesize

      408KB

    • memory/4628-16-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4628-14-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4628-17-0x0000000006F90000-0x0000000006FE0000-memory.dmp

      Filesize

      320KB

    • memory/4628-18-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB