Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4f8d0f556e69e40…

MALICIOUS

PDF

21.1 KB Created: 2019-05-04 13:29:52 +01:00 Authoring application: mPDF 5.7
MD5: 1ca86641417a3009b3a21b555d500880 SHA-1: ab4e0ae73d8aa3f7a51beeee88315c2e8bee570b SHA-256: b4f8d0f556e69e407952f403036097adb980a9fa5bb1a2f310301987427b5f91
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. While many of these URLs point to benign-looking book titles, the sheer volume and the nature of the heuristic suggest a malicious intent, likely for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/8097098093097097/Invention-The-Care-and-Feeding-of-Ideas-by-Norbert-Wiener.pdf
    • http://loaminoo.linkpc.net/2099092094092091/John-von-Neumann-and-Norbert-Wiener-From-Mathematics-to-the-Technologies-of-Life-and-Death-by-Steve-Joshua-Heims.pdf
    • http://loaminoo.linkpc.net/1095097094095091/The-Care-and-Feeding-of-Griffins-Lords-of-Arcadia-1-by-R-Lee-Smith.pdf
    • http://loaminoo.linkpc.net/4091094095098095/The-Care-and-Feeding-of-Sex-Demons-Sex-Demon-101-1-by-Angela-Fiddler.pdf
    • http://loaminoo.linkpc.net/2098094090090092/The-Care-and-Feeding-of-Unmarried-Men-The-Wisegirls-2-by-Christie-Ridgway.pdf
    • http://loaminoo.linkpc.net/1099092096097095/The-Spiderwick-Chronicles-Care-and-Feeding-of-Sprites-by-Tony-DiTerlizzi.pdf
    • http://loaminoo.linkpc.net/1097096099092090/The-Care-amp-Feeding-of-Pirates-Regency-Pirates-3-by-Jennifer-Ashley.pdf
    • http://loaminoo.linkpc.net/6090097092090/A-Dragon-s-Guide-to-the-Care-and-Feeding-of-Humans-A-Dragon-s-Guide-1-by-Laurence-Yep.pdf
    • http://loaminoo.linkpc.net/7095090091092097/Bouvier-Des-Flandres-Bouvier-Des-Flandres-Dog-Complete-Owners-Manual-Bouvier-Des-Flandres-Book-for-Care-Costs-Feeding-Grooming-Health-and-Training-by-George-Hoppendale.pdf
    • http://loaminoo.linkpc.net/8099097093098093/Norbert-Norbert-the-Horse-1-by-James-Sutherland.pdf
    • http://loaminoo.linkpc.net/4094098098096090/50-Quantum-Physics-Ideas-You-Really-Need-to-Know-50-Ideas-You-Really-Need-to-Know-series-by-Joanne-Baker.pdf
    • http://loaminoo.linkpc.net/1091096095093091096/Relax-52-Brilliant-Little-Ideas-to-Chill-Out-by-Infinite-Ideas.pdf
    • http://loaminoo.linkpc.net/9093096099090091/Endzeitthriller-quot-ENDLOS-quot-von-Norbert-L-ffler-2-B-nde-by-Norbert-L-ffler.pdf
    • http://loaminoo.linkpc.net/5098098092099093/Puppy-Intensive-Care-A-Breeder-s-Guide-to-Care-of-Newborn-Puppies-by-Myra-Savant-harris.pdf
    • http://loaminoo.linkpc.net/1099091094094099/Best-Care-Anywhere-Why-VA-Health-Care-Is-Better-Than-Yours-by-Phillip-Longman.pdf
    • http://loaminoo.linkpc.net/4095098094097096/Child-Care-A-Comprehensive-Guide-4-Volumes-Volume-1--Rationale-for-Child-Care-Services-Programs-Vs-Politics-by-Stevanne-Auerbach.pdf
    • http://loaminoo.linkpc.net/5094091093092096/Journey-to-the-Fatherless-Preparing-for-the-Journey-of-Adoption-Orphan-Care-Foster-Care-and-Humanitarian-Relief-for-Vulnerable-Children-by-Lawrence-E-Bergeron.pdf
    • http://loaminoo.linkpc.net/1091093093091098096/Emergency-Care-amp-Workbook-for-Emergency-Care-Package-13th-Edition-by-Daniel-Limmer.pdf
    • http://loaminoo.linkpc.net/3099091092093090/Feeding-The-Need-by-Ruthie-Toombs.pdf
    • http://loaminoo.linkpc.net/8098096092098/Feeding-the-Ghosts-by-Fred-D-39-Aguiar.pdf
    • http://loaminoo.linkpc.net/6090097092090/A-Dragon-s-Guide-to-the-Care-and-Feeding-of-Hu

Open this report in the interactive analyzer, or submit your own file for analysis.