Analysis

  • max time kernel
    77s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2022 10:50

General

  • Target

    bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe

  • Size

    710KB

  • MD5

    0bcea97bbf8109cb95c4483a60bcf3f8

  • SHA1

    4c52328289dc823cf96c3f99849e4bfc42ee1131

  • SHA256

    bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb

  • SHA512

    21a1dccc8e1d4ce12da5b73b205e0df4c81a7dd7286ed019fc5ae0d1ca37359dfd660bfb955ff0cb44eec0acc127ef30654051b6c9c11ea9e7fe9751f4ebb060

  • SSDEEP

    12288:C+eBtaxy4sevTjgxSPUNkxjZ5gWI+p3c:3E4xjscTa7ojgb+Zc

Malware Config

Extracted

Family

snakekeylogger

Credentials

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 1 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\bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe
    "C:\Users\Admin\AppData\Local\Temp\bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Users\Admin\AppData\Local\Temp\bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe
      "C:\Users\Admin\AppData\Local\Temp\bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4704

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb.exe.log

    Filesize

    1KB

    MD5

    e08f822522c617a40840c62e4b0fb45e

    SHA1

    ae516dca4da5234be6676d3f234c19ec55725be7

    SHA256

    bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

    SHA512

    894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

  • memory/4024-132-0x00000000004C0000-0x0000000000578000-memory.dmp

    Filesize

    736KB

  • memory/4024-133-0x00000000052A0000-0x0000000005844000-memory.dmp

    Filesize

    5.6MB

  • memory/4024-134-0x0000000004DD0000-0x0000000004E62000-memory.dmp

    Filesize

    584KB

  • memory/4024-135-0x0000000004E70000-0x0000000004E7A000-memory.dmp

    Filesize

    40KB

  • memory/4024-136-0x00000000075D0000-0x000000000766C000-memory.dmp

    Filesize

    624KB

  • memory/4024-137-0x0000000007670000-0x00000000076D6000-memory.dmp

    Filesize

    408KB

  • memory/4704-138-0x0000000000000000-mapping.dmp

  • memory/4704-139-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4704-141-0x0000000006980000-0x0000000006B42000-memory.dmp

    Filesize

    1.8MB