Overview

overview

10

Static

static

Quotation ...39.exe

windows7_x64

10

Quotation ...39.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    155s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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 1 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.

  • 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 1 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.

  • 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 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 BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3856
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UNxuZSpnXyss" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA662.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4872
    • C:\Users\Admin\AppData\Local\Temp\Quotation #257&439.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4108

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

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
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\Microsoft\CLR_v4.0_32\UsageLogs\Quotation #257&439.exe.log
    Filesize

    1KB

    MD5

    e08f822522c617a40840c62e4b0fb45e

    SHA1

    ae516dca4da5234be6676d3f234c19ec55725be7

    SHA256

    bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

    SHA512

    894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpA662.tmp
    Filesize

    1KB

    MD5

    17606ee1210d146556887c044bc768a2

    SHA1

    96ca86967ddd9faab2a12a0b5844bd273a72178c

    SHA256

    31070f72bf560ae3c56ba5ab92d5dea3733593ae8086947bf93e93c77f9a3a31

    SHA512

    09db3fcad678992fabd8f15c2b6ec69f05355fcb5a0f2842dc5972631db47f6c270f097f69cb8ed80b98b3e4a8d709ce52d242099e96cd9d1d249182ab963415

    Download Submit
  • memory/3856-130-0x0000000000140000-0x00000000001A4000-memory.dmp
    Filesize

    400KB

    Download
  • memory/3856-131-0x0000000007550000-0x0000000007AF4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3856-132-0x0000000007040000-0x00000000070D2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/3856-133-0x0000000007020000-0x000000000702A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/3856-134-0x0000000009510000-0x00000000095AC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/3856-135-0x0000000000820000-0x0000000000886000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4108-138-0x0000000000000000-mapping.dmp
    Download
  • memory/4108-139-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

    Download
  • memory/4872-136-0x0000000000000000-mapping.dmp
    Download