General

  • Target

    ATTACHMENTS.xlsx

  • Size

    713KB

  • Sample

    210722-4tvn6a6pc2

  • MD5

    c24c99e3c4a213b7356d63e5646d4457

  • SHA1

    7edbbb43143714139acdc66057b4fa884c8fdb07

  • SHA256

    dc0a3e25871596a368e26566d77da6de8c0a4edb43750fe617bb5036758f0ae7

  • SHA512

    e220612c7d9701c9397d8d69c86ed492e11f3d2b7b43169a59245bd38a92d25c779d71f872d0e7abe2906e6df69cc8629c2a8447d3534a89afe6a65b0d1a1624

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    )||LHNUQ5wgcszg

Targets

    • Target

      ATTACHMENTS.xlsx

    • Size

      713KB

    • MD5

      c24c99e3c4a213b7356d63e5646d4457

    • SHA1

      7edbbb43143714139acdc66057b4fa884c8fdb07

    • SHA256

      dc0a3e25871596a368e26566d77da6de8c0a4edb43750fe617bb5036758f0ae7

    • SHA512

      e220612c7d9701c9397d8d69c86ed492e11f3d2b7b43169a59245bd38a92d25c779d71f872d0e7abe2906e6df69cc8629c2a8447d3534a89afe6a65b0d1a1624

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks