General

  • Target

    Payment Receipt.exe

  • Size

    72KB

  • Sample

    230612-j548ksba72

  • MD5

    f50c01b28f63ea3a2f9eda5d3f62cafc

  • SHA1

    15194fbd3471810bf689da9efeb57efdd4e4f21b

  • SHA256

    0e7012a66e5d3c6ada99f6dcf651fc8a29f31aa74083f76ee96992df0be54ffa

  • SHA512

    98bd8ce28d997815f135b0a73af05cd45d8bdde9d7a018311d7082ee76c3adca78b62ed161fc187febed6037aa556309cfaf13b2a29b1bd65c4a759e8fd5a8f5

  • SSDEEP

    1536:Ua3eJtxKnsYsEMINcTa7FFrj3Pxx1Px90:Ua3ez4sKNykrjfxxpxi

Malware Config

Extracted

Family

purecrypter

C2

http://172.245.191.17/000/Gjvbeqdycii.png

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    siamtmc.com
  • Port:
    587
  • Username:
    sompong@siamtmc.com
  • Password:
    s0mp0ng06

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    siamtmc.com
  • Port:
    587
  • Username:
    sompong@siamtmc.com
  • Password:
    s0mp0ng06
  • Email To:
    rufat@nep-az.com

Targets

    • Target

      Payment Receipt.exe

    • Size

      72KB

    • MD5

      f50c01b28f63ea3a2f9eda5d3f62cafc

    • SHA1

      15194fbd3471810bf689da9efeb57efdd4e4f21b

    • SHA256

      0e7012a66e5d3c6ada99f6dcf651fc8a29f31aa74083f76ee96992df0be54ffa

    • SHA512

      98bd8ce28d997815f135b0a73af05cd45d8bdde9d7a018311d7082ee76c3adca78b62ed161fc187febed6037aa556309cfaf13b2a29b1bd65c4a759e8fd5a8f5

    • SSDEEP

      1536:Ua3eJtxKnsYsEMINcTa7FFrj3Pxx1Px90:Ua3ez4sKNykrjfxxpxi

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Tasks