ab310ddf9267ed5d613bcc0e52c71a08

The presence of MD5 hash ab310ddf9267ed5d613bcc0e52c71a08 is a significant indicator of compromise, potentially linked to the 'Operation HollowQuill' campaign targeting Russian R&D networks with malicious PDF documents. This campaign, documented by Seqrite, leverages decoy PDFs to deliver malware, potentially leading to data exfiltration, lateral movement, or other malicious activities within the compromised environment. Given the association with a targeted attack campaign and potential for significant impact, any detection of this IOC warrants immediate investigation and remediation to prevent further compromise.