Overview

overview

10

Static

static

Quotation ...39.exe

windows7_x64

10

Quotation ...39.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    123s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:58

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General

  • Target

    Quotation #257&439.exe

  • Size

    376KB

  • MD5

    0ada92dbaeebf340360ac5b3dcf9a459

  • SHA1

    6c70fc7a6e3d08f39b5393341290658e8cbba591

  • SHA256

    302ef66c9868c12a36517bd2ee12254442b7504d17afdeabdc9264954e19a952

  • SHA512

    393fec311d35289126b268b64a249b07885bfa5eacc6d0db58a2e712b09a8b2b9262bba8435f60d460ecf4dde2ab345db5d514e9bb9d95ade30c439428c5ab4d

Score
10/10
matiexevasionkeyloggerstealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    beatexploit@yandex.com
  • Password:
    welcome@100

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Looks up external IP address via web service 3 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UNxuZSpnXyss" /XML "C:\Users\Admin\AppData\Local\Temp\tmp562C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1864
    • C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe
      "{path}"
      2⤵
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 1720
        3⤵
        • Program crash
        PID:1744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp562C.tmp
    Filesize

    1KB

    MD5

    77759542ce59ae83c395a9b6f5dd331a

    SHA1

    1b9a13e3ae26c6976db0c54b2581a0bbd6d8605f

    SHA256

    813bf6937a557c21e0d5362bb60aa12d5cccffd99cea17e106bbf11fd23c059f

    SHA512

    cdf1d56de8e87c9435ee1e6f4b332f3cec31806c72470c1f3a4d335a72f7db27324e8786cfee18953a28e040290de3040f73b61ace8d71fea127ba663d1d95ef

    Download Submit
  • memory/1100-67-0x000000000046FDCE-mapping.dmp
    Download
  • memory/1100-64-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-71-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-69-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-62-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-65-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-61-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1100-66-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1628-56-0x0000000000490000-0x000000000049A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1628-55-0x0000000075EF1000-0x0000000075EF3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1628-54-0x0000000000C70000-0x0000000000CD4000-memory.dmp
    Filesize

    400KB

    Download
  • memory/1628-58-0x00000000005E0000-0x0000000000654000-memory.dmp
    Filesize

    464KB

    Download
  • memory/1628-57-0x00000000049F0000-0x0000000004A48000-memory.dmp
    Filesize

    352KB

    Download
  • memory/1744-73-0x0000000000000000-mapping.dmp
    Download
  • memory/1864-59-0x0000000000000000-mapping.dmp
    Download