Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 10:23

General

  • Target

    Itemslists.scr

  • Size

    488KB

  • MD5

    b95e010955432d3e5a2e63d54c01e1b2

  • SHA1

    9a9e7575f960483591ac327e092e1a3fb041208a

  • SHA256

    1b68f5ab26d4fd7c7ca1933dd8dcc6f6f879104a072dc92f9d5917ad42a3cfd7

  • SHA512

    f2fca4e5ac2469f8a4466520b154bfa3567a8e060dd14e11692ddf904cea86b7b8eee859e2b125e7234dde956d2e89b000fb7ebcb0648720b822ea4624b0a024

  • SSDEEP

    12288:+g2Sh8cpTmGuh+6soYYhBHDejsgJEaTOL1p6O5n+vToVe:+gRh8xAkFBHDe7bTIW0Ve

Malware Config

Extracted

Family

matiex

Credentials

Signatures

  • Matiex

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

  • Matiex Main payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Itemslists.scr
    "C:\Users\Admin\AppData\Local\Temp\Itemslists.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AxOLPSrlQrex" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD28.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2348
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 1968
        3⤵
        • Program crash
        PID:1684
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2156 -ip 2156
    1⤵
      PID:800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpAD28.tmp

      Filesize

      1KB

      MD5

      b67d471b45aa6eaa9bc5d248343afdd4

      SHA1

      fd4a57bd56579fa4c5f831dece24fb4c8ade48a7

      SHA256

      e63bbd52b717b07e79e0352da80847d9491d9674b99afbabfb68cfdc94b78107

      SHA512

      7c4ca5cffa1a813d944e02ceba4813f613db6c7721b93331cd24fa08ae409d505a27752579f0d5672dd4429e4ff85fc6caf5c7034b65196cc418f15496db31ab

    • memory/2156-19-0x0000000074AB0000-0x0000000075260000-memory.dmp

      Filesize

      7.7MB

    • memory/2156-18-0x0000000074AB0000-0x0000000075260000-memory.dmp

      Filesize

      7.7MB

    • memory/2156-17-0x0000000004EB0000-0x0000000004F16000-memory.dmp

      Filesize

      408KB

    • memory/2156-16-0x0000000074AB0000-0x0000000075260000-memory.dmp

      Filesize

      7.7MB

    • memory/2156-13-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/2204-3-0x0000000005320000-0x00000000053B2000-memory.dmp

      Filesize

      584KB

    • memory/2204-7-0x0000000005E10000-0x00000000063B4000-memory.dmp

      Filesize

      5.6MB

    • memory/2204-6-0x0000000005700000-0x000000000577C000-memory.dmp

      Filesize

      496KB

    • memory/2204-5-0x00000000057A0000-0x000000000583C000-memory.dmp

      Filesize

      624KB

    • memory/2204-15-0x0000000074AB0000-0x0000000075260000-memory.dmp

      Filesize

      7.7MB

    • memory/2204-4-0x0000000074AB0000-0x0000000075260000-memory.dmp

      Filesize

      7.7MB

    • memory/2204-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

      Filesize

      4KB

    • memory/2204-2-0x00000000051F0000-0x0000000005200000-memory.dmp

      Filesize

      64KB

    • memory/2204-1-0x0000000000830000-0x00000000008B0000-memory.dmp

      Filesize

      512KB