General

  • Target

    doc2019291888001990.pdf.exe

  • Size

    47KB

  • Sample

    211021-lnrx2aabb3

  • MD5

    3c91dc241b4a5eacf2f38f942b9be889

  • SHA1

    407ebbf273319a0f39c21d286c44c8b1170267d6

  • SHA256

    dcb7cdefcf20a1e8320b1f4e89f0b8ba4e43062da33ba5a4c422cd7b0046630a

  • SHA512

    e6f8587cb167631de7e583c9f4af811a4a3262991d05bfd47bcef06c6a134027b6717046cc5f0a171b88d135a7146b7ddf8c710b669f3685752ac293f507a253

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mebareklam.com.tr
  • Port:
    587
  • Username:
    meba@mebareklam.com.tr
  • Password:
    %2Ar34qs

Targets

    • Target

      doc2019291888001990.pdf.exe

    • Size

      47KB

    • MD5

      3c91dc241b4a5eacf2f38f942b9be889

    • SHA1

      407ebbf273319a0f39c21d286c44c8b1170267d6

    • SHA256

      dcb7cdefcf20a1e8320b1f4e89f0b8ba4e43062da33ba5a4c422cd7b0046630a

    • SHA512

      e6f8587cb167631de7e583c9f4af811a4a3262991d05bfd47bcef06c6a134027b6717046cc5f0a171b88d135a7146b7ddf8c710b669f3685752ac293f507a253

    • Modifies Windows Defender Real-time Protection settings

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Turns off Windows Defender SpyNet reporting

    • Windows security bypass

    • Nirsoft

    • 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.

    • Windows security modification

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

4
T1089

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks