Overview

overview

10

Static

static

Quotation ...39.exe

windows7_x64

10

Quotation ...39.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    90s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 03:12

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General

  • Target

    Quotation #257&439.exe

  • Size

    330KB

  • MD5

    78ecb4ae45b1ac19a3f0295811eacea0

  • SHA1

    3fae2cdcbfa40c6937be2b84e4f0044c9efcacc6

  • SHA256

    f8113167cfaf623d5c08b33685577743fb96bd3daca2cd915d8b3efe81ad3a8b

  • SHA512

    dea32cc4e7515b271a5ba8094a955577ab3f0f115654afa70e984da104a2061e3016c847952b3a8a57d363b919a61f1a39a2945dab5da9008283bcb1a2f18a8b

Score
10/10
matiexkeyloggerstealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    welcome@100

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • 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). Likely ransomware behaviour.

  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HjFLPuWSHUVJV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6031.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5008
    • C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe
      "{path}"
      2⤵
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:1492
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 2012
        3⤵
        • Program crash
        PID:1848
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1492 -ip 1492
    1⤵
      PID:2352

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Quotation #257&439.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\tmp6031.tmp
      Filesize

      1KB

      MD5

      a6a77d0f7a40844203987eee02084370

      SHA1

      38e6500ebf749723859ef07445d709da285cda95

      SHA256

      43d3e2049485648a87ef8f64447b7d5a6d8111f3204a75fea0652517c382afe2

      SHA512

      b6db6942f995c864b2c8c9824d67ec4ea1a7012013e6582821d09ea4bc63ceda936562dd068816a3cef99361c47f637634c63d0de00768c6d4b0f6e5b22fad7a

      Download Submit

    • memory/1492-137-0x0000000000000000-mapping.dmp

      Download

    • memory/1492-138-0x0000000000400000-0x0000000000474000-memory.dmp

      Filesize

      464KB

      Download

    • memory/1492-140-0x00000000050B0000-0x0000000005116000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3128-130-0x0000000000430000-0x0000000000488000-memory.dmp

      Filesize

      352KB

      Download

    • memory/3128-131-0x0000000005310000-0x00000000058B4000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/3128-132-0x0000000004E40000-0x0000000004ED2000-memory.dmp

      Filesize

      584KB

      Download

    • memory/3128-133-0x0000000004E30000-0x0000000004E3A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/3128-134-0x0000000008750000-0x00000000087EC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/5008-135-0x0000000000000000-mapping.dmp

      Download