General

  • Target

    IMG_40317.doc

  • Size

    393KB

  • Sample

    210120-qlwkf57kx6

  • MD5

    38dee6d5471c99e1cea3ab5470685f83

  • SHA1

    9a35e6ea195e691b9f42b2d153494d1fe16450f5

  • SHA256

    4fdf2ab9302d8eb10903a5c535e688941be99ec4130ba4fe670ae3ca84fa9d94

  • SHA512

    ff394156df1fcd66eab71adc631634a15a85aae6ca6b4a38a54f0e9648bc84baa6f90816189e999e76540a7c1b26fd661bef647d6c1975542c32206499bbe0d4

Malware Config

Targets

    • Target

      IMG_40317.doc

    • Size

      393KB

    • MD5

      38dee6d5471c99e1cea3ab5470685f83

    • SHA1

      9a35e6ea195e691b9f42b2d153494d1fe16450f5

    • SHA256

      4fdf2ab9302d8eb10903a5c535e688941be99ec4130ba4fe670ae3ca84fa9d94

    • SHA512

      ff394156df1fcd66eab71adc631634a15a85aae6ca6b4a38a54f0e9648bc84baa6f90816189e999e76540a7c1b26fd661bef647d6c1975542c32206499bbe0d4

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Drops startup file

    • 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