Malicious PDF — malware analysis report

Static analysis result for SHA-256 836d2a5a2d56fbcd…

MALICIOUS

PDF

22.0 KB Created: 2019-05-04 14:21:55 +01:00 Authoring application: mPDF 5.7
MD5: 337e098af91d7700e4224d162ed5a52c SHA-1: f6505de4b9a4661dab105a2ba020811485717271 SHA-256: 836d2a5a2d56fbcda1d45f027cd53d00dcc519b95b96ed0703bebc9a47d38430
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While the specific intent beyond linking is unclear due to the lack of executable scripts, the sheer volume of links on a suspicious domain suggests a potential attempt to drive traffic or distribute further malicious content.

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/1098097091090092/Chapter-After-Chapter-Discover-the-Dedication-amp-Focus-You-Need-to-Write-the-Book-of-Your-Dreams-by-Heather-Sellers.pdf
    • http://loaminoo.linkpc.net/3094098095097091/Chapter-8-The-Complete-Series-Chapter-8-1-2-by-Ella-Dominguez.pdf
    • http://loaminoo.linkpc.net/6092097093098092/The-Picture-of-Dorian-Gray-Collector-s-Edition-Including-the-Uncensored-13-Chapter-Version-amp-The-Revised-20-Chapter-Version-by-Oscar-Wilde.pdf
    • http://loaminoo.linkpc.net/8095096095090093/I-am-Malala-by-Malala-Yousafzai-and-Christina-Lamb---A-30-minute-Chapter-by-Chapter-Summary-by-Instaread-Summaries.pdf
    • http://loaminoo.linkpc.net/8099096099095098/The-Pictures-of-Dorian-Gray-Includes-Both-the-20-Chapter-and-13-Chapter-Versions-of-The-Picture-of-Dorian-Gray-by-Oscar-Wilde.pdf
    • http://loaminoo.linkpc.net/1093097091091092/I-Choose-You-Pokemon-Chapter-Book-1-by-Tracey-West.pdf
    • http://loaminoo.linkpc.net/7093092091093091/Siddhartha---A-Dual-Language-Interactive-Alternating-Chapter-Book-German-and-English-by-Hermann-Hesse.pdf
    • http://loaminoo.linkpc.net/8095092095096094/All-The-Light-We-Cannot-See-A-Novel-By-Anthony-Doerr-Official-Summary-and-Analysis---BookMarked-Chapter-By-Chapter-All-The-Light-We-Cannot-See-Anthony-Doerr-All-The-Light-We-Cannot-See-review-by-BookMarked.pdf
    • http://loaminoo.linkpc.net/2092092099090099/Attack-of-the-Prehistoric-Pokemon-Pokemon-Chapter-Book-3-by-Tracey-West.pdf
    • http://loaminoo.linkpc.net/1096096099097/Dark-Chapter-by-Winnie-M-Li.pdf
    • http://loaminoo.linkpc.net/1090090098096099095/The-Next-Chapter-by-Kirstie-Inman.pdf
    • http://loaminoo.linkpc.net/7096094096098/The-Last-Chapter-by-Knut-Hamsun.pdf
    • http://loaminoo.linkpc.net/4095091095090095/Wonder-The-Julian-Chapter-by-R-J-Palacio.pdf
    • http://loaminoo.linkpc.net/3099094091090093/In-Dreams-The-Baldoni-Files-Book-1-by-Heather-Mullins.pdf
    • http://loaminoo.linkpc.net/1095095090094099/Martin-The-First-Chapter-by-Hari-Kumar-K-.pdf
    • http://loaminoo.linkpc.net/2094091092095090/Chapter-One-Janey-by-Mary-Catherine.pdf
    • http://loaminoo.linkpc.net/6091093090099090/The-Cursed-One-Chapter-6-and-7-by-Miroir-Mitani.pdf
    • http://loaminoo.linkpc.net/3092091094094093/The-Chapter-of-Enlightenment-by-Kerry-Girling.pdf
    • http://loaminoo.linkpc.net/9091096098091096/Platinum-End-Chapter-4-by-Tsugumi-Ohba.pdf
    • http://loaminoo.linkpc.net/6093095095096098/Chapter-and-Verse-by-Colin-Bateman.pdf