Malware: SampleCheck5000

Description

[SampleCheck5000](https://attack.mitre.org/software/S1168) is a downloader with multiple variants that was used by [OilRig](https://attack.mitre.org/groups/G0049) including during the [Outer Space](https://attack.mitre.org/campaigns/C0042) campaign to download and execute additional payloads. (Citation: ESET OilRig Campaigns Sep 2023)(Citation: ESET OilRig Downloaders DEC 2023)

External References

• mitre-attack
• ESET OilRig Downloaders DEC 2023
• ESET OilRig Campaigns Sep 2023

Techniques Used by This Malware

• T1059.003 — Windows Command Shell
• T1071.001 — Web Protocols
• T1074.001 — Local Data Staging
• T1082 — System Information Discovery
• T1102.002 — Bidirectional Communication
• T1105 — Ingress Tool Transfer
• T1140 — Deobfuscate/Decode Files or Information
• T1560.001 — Archive via Utility
• T1567 — Exfiltration Over Web Service

APT Groups Using This Malware

• OilRig