General

  • Target

    b0677e12d72e6db277aec45035d4fdf1e7c2530716dbb569d273174eccec4877

  • Size

    449KB

  • Sample

    220319-pgbh9ahfek

  • MD5

    0fefe78a6c226caf79629cd3548a97ba

  • SHA1

    9e054c90cf8f18f2303c209590475f596bcc56bf

  • SHA256

    b0677e12d72e6db277aec45035d4fdf1e7c2530716dbb569d273174eccec4877

  • SHA512

    e79aa0ef473d6ec6bc8f87567c2a5a81c2ec157637c8899c5a74aadd8ea8dd3cc9897ae07aba778aa827f079c78aa5ebf28839890e37e23a6bb98a842be6cd2e

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1474029845:AAESF02q0JZytndFFaKINAGOHrylDk8NpJA/sendMessage?chat_id=1481651786

Targets

    • Target

      b0677e12d72e6db277aec45035d4fdf1e7c2530716dbb569d273174eccec4877

    • Size

      449KB

    • MD5

      0fefe78a6c226caf79629cd3548a97ba

    • SHA1

      9e054c90cf8f18f2303c209590475f596bcc56bf

    • SHA256

      b0677e12d72e6db277aec45035d4fdf1e7c2530716dbb569d273174eccec4877

    • SHA512

      e79aa0ef473d6ec6bc8f87567c2a5a81c2ec157637c8899c5a74aadd8ea8dd3cc9897ae07aba778aa827f079c78aa5ebf28839890e37e23a6bb98a842be6cd2e

    • Matiex

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

    • Matiex Main Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

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

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks