Analysis

  • max time kernel
    150s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-05-2022 20:04

General

  • Target

    aICimr3gAHz4gx6.exe

  • Size

    1.5MB

  • MD5

    9276601508a998aa3152add2207c9abf

  • SHA1

    a59da80a5f9e45fe07779f44c9e87e691e91102a

  • SHA256

    522fd7ca621387362eb8122f195c78ffa6124a5b3d5415717ff856b91fca430f

  • SHA512

    0d7f98ced9848d14ad470369d053b88f605d897353d49225b5e45e13a6f760f4ff57f8224030e94e23f7f43546ccf8cb7a08524ed94ad35cde7bbf7905b9e28e

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

Signatures

  • Matiex

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

  • Matiex Main Payload 1 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aICimr3gAHz4gx6.exe
    "C:\Users\Admin\AppData\Local\Temp\aICimr3gAHz4gx6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Users\Admin\AppData\Local\Temp\aICimr3gAHz4gx6.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4064

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\aICimr3gAHz4gx6.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4064-135-0x0000000000000000-mapping.dmp

  • memory/4064-136-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4064-138-0x0000000005060000-0x00000000050C6000-memory.dmp

    Filesize

    408KB

  • memory/4264-130-0x0000000000F00000-0x0000000001092000-memory.dmp

    Filesize

    1.6MB

  • memory/4264-131-0x000000000A480000-0x000000000AA24000-memory.dmp

    Filesize

    5.6MB

  • memory/4264-132-0x0000000005BF0000-0x0000000005C82000-memory.dmp

    Filesize

    584KB

  • memory/4264-133-0x0000000005BE0000-0x0000000005BEA000-memory.dmp

    Filesize

    40KB

  • memory/4264-134-0x0000000006000000-0x000000000609C000-memory.dmp

    Filesize

    624KB