Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aa8ec76dd86f8e3…

MALICIOUS

PDF

12.1 KB Created: 2019-05-03 13:45:39 +01:00 Authoring application: mPDF 5.7
MD5: 36eebcb90878f813eadb46dc63346698 SHA-1: a2508feefe02de7389b08342ac4b79aa7d25d0cc SHA-256: 1aa8ec76dd86f8e3366cfce85c55fd44b822634da7942b92732ae5a33153e372
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or redirection tactic. The ML classifier also flagged the PDF as malicious. No scripts were extracted from this sample. The primary attack pattern involves leveraging these embedded links to redirect users to potentially harmful content.

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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