Overview

overview

10

Static

static

BV10013_.exe

windows7_x64

10

BV10013_.exe

windows10-2004_x64

10

PICTURES.scr

windows7_x64

10

PICTURES.scr

windows10-2004_x64

10

REACH_ST.exe

windows7_x64

10

REACH_ST.exe

windows10-2004_x64

10

TEMPLATE.exe

windows7_x64

10

TEMPLATE.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    195s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:57

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General

  • Target

    TEMPLATE.exe

  • Size

    487KB

  • MD5

    a4b9cb78deefd62d30d2f21e65fe8c7a

  • SHA1

    55820f96071437f08f6ea4e656a0497e71292916

  • SHA256

    99b2d9e790cfb597b01a934bcf113cd6675f4a5ef260da57ef2a86d68ecbc1b2

  • SHA512

    770d4dd21e674ac88922b42fc2d5e5eda4fb4c58cb9daf04f8396932505da5ddf05c67719d326f01cb244349b244fd896cc2142c01fdf6aecc71bf87ded76da0

Score
10/10
matiexevasionkeyloggerstealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    sales02@seedwellresources.xyz
  • Password:
    coronavirus2020
  • Email To:
    sales01@seedwellresources.xyz

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 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.

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TEMPLATE.exe
    "C:\Users\Admin\AppData\Local\Temp\TEMPLATE.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:1164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ABxVOQj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE9F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5008
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4932

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\Temp\tmpAE9F.tmp
    Filesize

    1KB

    MD5

    4d54fc2387a8a6a6493235c1a2e4e004

    SHA1

    91397a6dd57009339f704e1243092046b3768de4

    SHA256

    abf07e7a94e9f2c9f3d1be7378e1f2a23129c4b997457578d32fb53cf2772b71

    SHA512

    7bf39e9724e13baeb829f3406e0713febd47034c48a5027987f19982cd01b52977410f54942a4c462110f1e43053c894a0de285b84ad403c36810fde29133a06

    Download Submit
  • memory/1164-130-0x0000000000F20000-0x0000000000FA2000-memory.dmp
    Filesize

    520KB

    Download
  • memory/1164-131-0x0000000005DA0000-0x0000000006344000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/1164-132-0x0000000005890000-0x0000000005922000-memory.dmp
    Filesize

    584KB

    Download
  • memory/1164-133-0x0000000005810000-0x000000000581A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1164-134-0x0000000007F80000-0x000000000801C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/1164-135-0x0000000008310000-0x0000000008376000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4932-138-0x0000000000000000-mapping.dmp
    Download
  • memory/4932-139-0x0000000000400000-0x0000000000470000-memory.dmp
    Filesize

    448KB

    Download
  • memory/5008-136-0x0000000000000000-mapping.dmp
    Download