Analysis

  • max time kernel
    91s
  • max time network
    92s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-04-2024 04:40

General

  • Target

    67f4f989a12849763167b2366c11564c_JaffaCakes118.exe

  • Size

    434KB

  • MD5

    67f4f989a12849763167b2366c11564c

  • SHA1

    9687d2c6d575861bf2cc74ead1099888dfeef111

  • SHA256

    fe7db020dc9a216c417340950ed826de77d3fe968ab9b16f5ddb98e08dcb0eee

  • SHA512

    bda0bc9280dda6648cdf6a1e0bce40458749811e330fe3fe4b83c8c42d8c7a8aa4464dd763263a504db5554a3d9275c7d2afda3adf50bd4a621108953c75484f

  • SSDEEP

    6144:ggPgejLAWGU7NpRJkdlvuGsS5b3PsOVtEB:gXkLAW5PRJ+lHxP3VtK

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1988840552:AAHXu6-g6KC03PLWanCzw1bVE3etgHR-Wnc/sendMessage?chat_id=2033777723

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main 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.

  • Program crash 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67f4f989a12849763167b2366c11564c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\67f4f989a12849763167b2366c11564c_JaffaCakes118.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:1892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 2184
      2⤵
      • Program crash
      PID:4792
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1892 -ip 1892
    1⤵
      PID:3552

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1892-0-0x0000000000890000-0x0000000000902000-memory.dmp

      Filesize

      456KB

    • memory/1892-1-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB

    • memory/1892-2-0x00000000052F0000-0x000000000538C000-memory.dmp

      Filesize

      624KB

    • memory/1892-3-0x0000000005250000-0x00000000052B6000-memory.dmp

      Filesize

      408KB

    • memory/1892-4-0x0000000005200000-0x0000000005210000-memory.dmp

      Filesize

      64KB

    • memory/1892-5-0x0000000006810000-0x0000000006DB4000-memory.dmp

      Filesize

      5.6MB

    • memory/1892-6-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB

    • memory/1892-7-0x0000000006510000-0x00000000066D2000-memory.dmp

      Filesize

      1.8MB

    • memory/1892-8-0x0000000005200000-0x0000000005210000-memory.dmp

      Filesize

      64KB

    • memory/1892-9-0x00000000749C0000-0x0000000075170000-memory.dmp

      Filesize

      7.7MB