Analysis

  • max time kernel
    135s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-06-2023 09:16

General

  • Target

    SD0098654578000.exe

  • Size

    239KB

  • MD5

    5770029a5220d4815065acdd4cd9d610

  • SHA1

    1fe65c7fbc10c0ae57c3fa3dad0fc412571e7bfa

  • SHA256

    54933171115c3b98a0e26bfc0e2cb7b2d5e5affa1a99970980cc9bb9599329b3

  • SHA512

    acabf3b97e9bdcd4ef7553f2149e9cfb90e1d61f8b78a4d1145657c7f55fd7b1a150def5869b0d3da16b4e3fde361a5e492d12eaa6f1bc6ecbb8e86084be326a

  • SSDEEP

    6144:V9EfkK97Xtc5abtJINZzZLywEtVpisJv0HpESnMuVy:V9Efk+Xtt4zZLywGVBu+SM+

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sienkakupeste.com
  • Port:
    587
  • Username:
    info@sienkakupeste.com
  • Password:
    010203sienka++
  • Email To:
    saleseuropower2@yandex.com

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe
    "C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe
      "C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe"
      2⤵
        PID:860
      • C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe
        "C:\Users\Admin\AppData\Local\Temp\SD0098654578000.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3212

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Collection

    Data from Local System

    2
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SD0098654578000.exe.log
      Filesize

      706B

      MD5

      2ef5ef69dadb8865b3d5b58c956077b8

      SHA1

      af2d869bac00685c745652bbd8b3fe82829a8998

      SHA256

      363502eb2a4e53ba02d2d85412b901fcf8e06de221736bdffa949799ef3d21e3

      SHA512

      66d4db5dd17d88e1d54ea0df3a7211a503dc4355de701259cefccc9f2e4e3ced9534b700099ffbb089a5a3acb082011c80b61801aa14aff76b379ce8f90d4fd3

    • memory/1372-133-0x0000000000C40000-0x0000000000C80000-memory.dmp
      Filesize

      256KB

    • memory/1372-134-0x0000000005B40000-0x00000000060E4000-memory.dmp
      Filesize

      5.6MB

    • memory/1372-135-0x0000000005630000-0x00000000056C2000-memory.dmp
      Filesize

      584KB

    • memory/1372-136-0x0000000005810000-0x00000000058AC000-memory.dmp
      Filesize

      624KB

    • memory/3212-137-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/3212-140-0x00000000054D0000-0x00000000054E0000-memory.dmp
      Filesize

      64KB

    • memory/3212-141-0x0000000006490000-0x0000000006652000-memory.dmp
      Filesize

      1.8MB

    • memory/3212-142-0x0000000006410000-0x000000000641A000-memory.dmp
      Filesize

      40KB

    • memory/3212-143-0x00000000054D0000-0x00000000054E0000-memory.dmp
      Filesize

      64KB