Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6386e0216db9b8f…

MALICIOUS

PDF

23.1 KB Created: 2019-05-01 18:51:17 +01:00 Authoring application: mPDF 5.7
MD5: c71a1d1a48241cd5001a9e668d32ff98 SHA-1: c0587d4f8e3ee19caa2f7d0794ef06b56eda73b8 SHA-256: b6386e0216db9b8fe61ab686e4ac22f8e03bde5e722305ffe4217ba46f69d1ab
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of external links, indicative of a link farm. The primary heuristic identified a "PDF_SEO_LINK_FARM" which suggests the document's purpose is to host numerous links, likely for SEO manipulation or to redirect users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/9099090099097098/Hill-s-Wilmington-New-Hanover-County-N-C-City-Directory-1956-Including-Audubon-Devon-Park-Edgewood-Foxtown-Garden-City-Hanover-Heights-Highwood-Park-Idlewild-Longleaf-Hill-Oak-Court-Oak-Crest-Piney-Woods-and-Winter-Park-by-Hill-Directory-Company.pdf
    • http://loaminoo.linkpc.net/9099090099098090/Hill-s-Wilmington-New-Hanover-County-N-C-City-Directory-1958-Including-Audubon-Devon-Park-Edgewood-Foxtown-Garden-City-Hanover-Heights-Highwood-Park-Idlewild-Long-Leaf-Hill-Oak-Court-Oak-Crest-Piney-Woods-and-Winter-Park-by-Hill-Directory-Company.pdf
    • http://loaminoo.linkpc.net/9099090099093098/Hill-s-Wilmington-New-Hanover-County-N-C-City-Directory-1952-Vol-31-Including-Audubon-Edgewood-Foxtown-Garden-City-Highwood-Park-Idlewild-Maffitt-Village-Piney-Woods-and-Winter-Park-Classic-Reprint-by-Hill-Directory-Company.pdf
    • http://loaminoo.linkpc.net/7097097094096096/Patti-Labelle-s-Lite-Cuisine-by-Patti-LaBelle.pdf
    • http://loaminoo.linkpc.net/4095095091099092/Humility-Garden-Garden-of-Salt-1-by-Felicity-Savage.pdf
    • http://loaminoo.linkpc.net/7091098099093098/The-Edible-Garden-How-to-Have-Your-Garden-and-Eat-It-Too-by-Alys-Fowler.pdf
    • http://loaminoo.linkpc.net/4094096093/The-Innkeeper-of-Ivy-Hill-Tales-from-Ivy-Hill-1-by-Julie-Klassen.pdf
    • http://loaminoo.linkpc.net/2094093092091/Here-I-Am-by-Patti-Kim.pdf
    • http://loaminoo.linkpc.net/1098098091098/Garden-Butterflies-of-North-America-A-Gallery-of-Garden-Butterflies-amp-How-to-Attract-Them-by-Rick-Mikula.pdf
    • http://loaminoo.linkpc.net/5090091099093/The-List-by-Patti-Flinn.pdf
    • http://loaminoo.linkpc.net/2091093096098091/Run-The-Hunted-1-by-Patti-Larsen.pdf
    • http://loaminoo.linkpc.net/3097097097097099/Cirkus-by-Patti-Frazee.pdf
    • http://loaminoo.linkpc.net/1092096095091099/Run-The-Hunted-1-by-Patti-Larsen.pdf
    • http://loaminoo.linkpc.net/2096092091096091/Wife-for-a-Day-by-Patti-Berg.pdf
    • http://loaminoo.linkpc.net/3094094094093095/The-Stories-We-Tell-by-Patti-Callahan-Henry.pdf
    • http://loaminoo.linkpc.net/1097099091095090/Mirror-Image-by-Patti-Roberts.pdf
    • http://loaminoo.linkpc.net/2097097096091/Letters-From-Wolfie-by-Patti-Sherlock.pdf
    • http://loaminoo.linkpc.net/1096093090091099/Prince-Nameless-by-Patti-Larsen.pdf
    • http://loaminoo.linkpc.net/2091099099099091/And-Then-I-Found-You-by-Patti-Callahan-Henry.pdf
    • http://loaminoo.linkpc.net/6098098093097093/Kenzie-and-the-Greenman-by-Patti-Van-Brederode.pdf
    • http://loaminoo.linkpc.net/9099090099098090/Hill-s-Wilmington-New-Hanover-County-N-C-City-Directory-1958-Including-Audubon-Devon-Park-Edgewood-Foxtown-Garden-City-Hanover-Heights-Highwood-Park-Idlewild-Long-Leaf-Hill-Oak-Court-Oak-Crest-Piney-Woods-and-Wint

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