Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2023, 12:27

General

  • Target
    Shipping documents - CTM - Draft bl.exe
  • Size 776KB
  • Sample230307-pmrseshc9s
  • SHA256 08e04faa04ed269f7378476ccf3296ef3ed403817ca6ec26277a4d4fe82bce3e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shipping documents - CTM - Draft bl.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipping documents - CTM - Draft bl.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\AppData\Local\Temp\Shipping documents - CTM - Draft bl.exe
      "C:\Users\Admin\AppData\Local\Temp\Shipping documents - CTM - Draft bl.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1472

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Shipping documents - CTM - Draft bl.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Shipping documents - CTM - Draft bl.exe.log
        • Size 1KB
        • SHA256 839fa1f9725719938ffa24533587b168bae2768f23ac09dccb3ad4ab8ae6abcd
        • MD5 SHA1 SHA512

        memory/1472-139-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1472-142-0x00000000056D0000-0x00000000056E0000-memory.dmp

        memory/1472-143-0x00000000068E0000-0x0000000006AA2000-memory.dmp

        memory/1472-144-0x00000000068A0000-0x00000000068AA000-memory.dmp

        memory/1472-145-0x00000000056D0000-0x00000000056E0000-memory.dmp

        memory/3852-133-0x00000000005C0000-0x0000000000688000-memory.dmp

        memory/3852-134-0x00000000057B0000-0x0000000005D54000-memory.dmp

        memory/3852-135-0x0000000005200000-0x0000000005292000-memory.dmp

        memory/3852-136-0x00000000051F0000-0x0000000005200000-memory.dmp

        memory/3852-137-0x00000000051F0000-0x0000000005200000-memory.dmp

        memory/3852-138-0x0000000005FC0000-0x000000000605C000-memory.dmp