Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/07/2023, 09:29

General

  • Target
    Fatura n. 24.exe
  • Size 497KB
  • Sample230717-lfw7saba97
  • SHA256 daaaa1107bcfd8b9e0f682a1677141093786f201a8396f5210e9348222af2399
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.mutuadebasto.pt

  • Port

    587

  • Password

    mutua_Fernando123

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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 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 11 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe
    "C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe
      "C:\Users\Admin\AppData\Local\Temp\Fatura n. 24.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1204

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        Fatura n. 24.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fatura n. 24.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/1204-142-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1204-149-0x0000000074CD0000-0x0000000075480000-memory.dmp

        memory/1204-148-0x0000000006BD0000-0x0000000006D92000-memory.dmp

        memory/1204-147-0x0000000001C70000-0x0000000001C80000-memory.dmp

        memory/1204-145-0x0000000074CD0000-0x0000000075480000-memory.dmp

        memory/2328-137-0x00000000057E0000-0x00000000057F0000-memory.dmp

        memory/2328-140-0x00000000057E0000-0x00000000057F0000-memory.dmp

        memory/2328-141-0x000000000AA60000-0x000000000AAFC000-memory.dmp

        memory/2328-139-0x0000000074CD0000-0x0000000075480000-memory.dmp

        memory/2328-138-0x00000000057B0000-0x00000000057BA000-memory.dmp

        memory/2328-146-0x0000000074CD0000-0x0000000075480000-memory.dmp

        memory/2328-133-0x0000000000D60000-0x0000000000DE2000-memory.dmp

        memory/2328-136-0x0000000005810000-0x00000000058A2000-memory.dmp

        memory/2328-135-0x0000000005D20000-0x00000000062C4000-memory.dmp

        memory/2328-134-0x0000000074CD0000-0x0000000075480000-memory.dmp