General

  • Target

    f63f61ec94af821134ae2a1dd3fdf374f86a61316db15d044e0e343c41d99a17

  • Size

    858KB

  • Sample

    220309-r73rjahed9

  • MD5

    10fb987bae3f8513ebd149657ba542ba

  • SHA1

    c506b003b7c8a90501be33e4d7477cd0aa50f84d

  • SHA256

    f63f61ec94af821134ae2a1dd3fdf374f86a61316db15d044e0e343c41d99a17

  • SHA512

    68afde759f6f4a5ccaa44260e96a0c56b53157e58ef9a933dbcded53d0125bc198422c86f16871fc130b836e1172ddd5fbb791a3d7d46ea1d37915cdb3c595b3

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1379319539:AAFQ7f96r1-8ijh6-Hym9Weh67R1ZdDQt0g/sendMessage?chat_id=1472166686

Targets

    • Target

      f63f61ec94af821134ae2a1dd3fdf374f86a61316db15d044e0e343c41d99a17

    • Size

      858KB

    • MD5

      10fb987bae3f8513ebd149657ba542ba

    • SHA1

      c506b003b7c8a90501be33e4d7477cd0aa50f84d

    • SHA256

      f63f61ec94af821134ae2a1dd3fdf374f86a61316db15d044e0e343c41d99a17

    • SHA512

      68afde759f6f4a5ccaa44260e96a0c56b53157e58ef9a933dbcded53d0125bc198422c86f16871fc130b836e1172ddd5fbb791a3d7d46ea1d37915cdb3c595b3

    • 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