Analysis

  • max time kernel
    118s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2024 05:45

General

  • Target

    48302a0bd757aab1f869f88f8f5c758b.exe

  • Size

    564KB

  • MD5

    48302a0bd757aab1f869f88f8f5c758b

  • SHA1

    db09b74ab6d38967eb2128e986518cd4f06b90aa

  • SHA256

    a3a5dc4d5d1b72c1864dca606a47cf8735a464cdf4d24ec74a113960c128d2c6

  • SHA512

    188a7f195786687efe4559436fbbc71137f8ab11c95e8baa6794cd8ca2d66dfc61d39c0240d9a530ceeb45a2732ad228adb6d96ef4ea13e06df9fb297dbcf438

  • SSDEEP

    12288:hVWX8yg3/V0nQWVrmCmtHLY4FrsASNMNNoZfGIl0rA5:CMyg3Cr8S+fS

Malware Config

Extracted

Family

matiex

Credentials

Signatures

  • Matiex

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

  • Matiex Main payload 7 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48302a0bd757aab1f869f88f8f5c758b.exe
    "C:\Users\Admin\AppData\Local\Temp\48302a0bd757aab1f869f88f8f5c758b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Users\Admin\AppData\Local\Temp\48302a0bd757aab1f869f88f8f5c758b.exe
      "C:\Users\Admin\AppData\Local\Temp\48302a0bd757aab1f869f88f8f5c758b.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2580
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2580 -s 1684
        3⤵
        • Program crash
        PID:2028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1112-22-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/1112-4-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/1112-0-0x00000000002C0000-0x0000000000354000-memory.dmp

    Filesize

    592KB

  • memory/1112-3-0x0000000000520000-0x000000000053C000-memory.dmp

    Filesize

    112KB

  • memory/1112-1-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/1112-5-0x0000000007220000-0x0000000007260000-memory.dmp

    Filesize

    256KB

  • memory/1112-6-0x00000000074B0000-0x0000000007514000-memory.dmp

    Filesize

    400KB

  • memory/1112-7-0x00000000077A0000-0x0000000007812000-memory.dmp

    Filesize

    456KB

  • memory/1112-2-0x0000000007220000-0x0000000007260000-memory.dmp

    Filesize

    256KB

  • memory/2580-10-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-8-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-13-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2580-16-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-18-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-12-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-21-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-20-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/2580-23-0x0000000005A50000-0x0000000005A90000-memory.dmp

    Filesize

    256KB

  • memory/2580-24-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-25-0x0000000005A50000-0x0000000005A90000-memory.dmp

    Filesize

    256KB