Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4ebf0f686da4f0f…

MALICIOUS

PDF

12.1 KB Created: 2019-04-30 20:13:22 +01:00 Authoring application: mPDF 5.7
MD5: d24f2a5caf65b8fe31e975deae551b11 SHA-1: ca9ef5bec551a88abef6c0daba54d4548c6e922f SHA-256: f4ebf0f686da4f0f1370a5fe9b1da7a485d358c2b480f7b9d6afe1469082a104
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this sample as malicious. No scripts were extracted, and the document body primarily consists of these URLs and metadata.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8737

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/5099090095091096/This-Dame-for-Hire-by-Sandra-Scoppettone.pdf
    • http://loaminoo.linkpc.net/3097099093092094/This-Dame-for-Hire-by-Sandra-Scoppettone.pdf
    • http://loaminoo.linkpc.net/3098091097098095/Trying-Hard-to-Hear-You-by-Sandra-Scoppettone.pdf
    • http://loaminoo.linkpc.net/1097092099091/A-Creative-Kind-of-Killer-by-Sandra-Scoppettone.pdf
    • http://loaminoo.linkpc.net/3098096099090092/Too-Darn-Hot-by-Pamela-Burford.pdf
    • http://loaminoo.linkpc.net/5092092093096099/Those-Darn-Squirrels-by-Adam-Rubin.pdf
    • http://loaminoo.linkpc.net/6092091094/Seeing-Red-by-Sandra-Brown.pdf
    • http://loaminoo.linkpc.net/3095097090092094/Out-by-Sandra-Diersch.pdf
    • http://loaminoo.linkpc.net/9090099094091093/Koalas-by-Sandra-Lee.pdf
    • http://loaminoo.linkpc.net/1092094097090092/Rescues-by-Sandra-Markle.pdf
    • http://loaminoo.linkpc.net/1091095094099094092/A-Favorita-do-Rei-by-Sandra-Worth.pdf
    • http://loaminoo.linkpc.net/8092095092090099/Off-to-the-Recue-by-Sandra-Damashek.pdf
    • http://loaminoo.linkpc.net/3091098098096099/Awakened-by-Sandra-Ross.pdf
    • http://loaminoo.linkpc.net/4098091096094096/Consider-Love-by-Sandra-Boynton.pdf
    • http://loaminoo.linkpc.net/1090092091094099099/Act-of-Pardon-by-Sandra-Sookoo.pdf
    • http://loaminoo.linkpc.net/3094095099091092/Silvija-by-Sandra-Ridley.pdf
    • http://loaminoo.linkpc.net/7091095090093/The-Witness-by-Sandra-Brown.pdf
    • http://loaminoo.linkpc.net/7090093097097/The-Alibi-by-Sandra-Brown.pdf
    • http://loaminoo.linkpc.net/1092090096096/Domesticating-Luc-by-Sandra-Paul.pdf
    • http://loaminoo.linkpc.net/2097092095093095/Hey-Wake-Up-by-Sandra-Boynton.pdf
    • http://loaminoo.linkpc.net/30940950990910

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