Malicious PDF — malware analysis report

Static analysis result for SHA-256 267875e4a3e20d72…

MALICIOUS

PDF

31.7 KB Created: 2019-05-02 05:06:30 +01:00 Authoring application: mPDF 5.7
MD5: 89b6e182cd2ee70bacb963a80802502e SHA-1: d3a333068b335beb636c3d97ed922ee72542a517 SHA-256: 267875e4a3e20d72522be504d0774012a38afdd4612bd00f6d50063733dbee5a
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of external links, characteristic of a link farm. The URLs point to a domain that appears to be hosting numerous PDF files, likely as a lure to direct users to malicious content or to manipulate search engine results. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the link farm and the ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9873

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://kiteeearpdf.myhome.cx/5f214f210f219f215f219/The-Old-Man-and-the-Sea-The-Old-Man-hardcover-illustration-original-English-vocabulary-comes-annotation-manual-World-Literature-Classics-Collection-read-the-best-selling-novel-of-choice---Zhenyu-English-by-Ernest-Hemingway.pdf
    • http://kiteeearpdf.myhome.cx/1f211f219f216f214f210f212/12000-English---Azerbaijani-Azerbaijani---English-Vocabulary-by-Gilad-Soffer.pdf
    • http://kiteeearpdf.myhome.cx/1f211f212f214f216f216f215/FAUST---Illustrated-amp-Translated-into-English-in-the-Original-Meters-Literary-Classics-Series-Pact-with-the-Devil-The-Oldest-German-Legend-by-Johann-Wolfgang-von-Goethe.pdf
    • http://kiteeearpdf.myhome.cx/8f212f210f217f211f211/A-Tagalog-English-and-English-Tagalog-Dictionary---Scholar-s-Choice-Edition-by-Charles-Nigg.pdf
    • http://kiteeearpdf.myhome.cx/3f216f219f212f215f213/English-Lit-Relit-A-Short-History-of-English-Literature-from-the-Precursors-Before-Swearing-to-the-Pre-Raphaelites-and-a-Little-After-Intended-to-Help-Students-See-the-Thing-Through-or-See-Through-the-Thing-and-Omitting-Nothing-Unimportant-by-Richard-Armour.pdf
    • http://kiteeearpdf.myhome.cx/6f211f219f219f210f211/A-Farewell-to-Arms-The-Complete-Works-of-Ernest-Hemingway-Volume-3-of-21-by-Ernest-Hemingway.pdf
    • http://kiteeearpdf.myhome.cx/7f213f216f218f211f214/The-Letters-of-Ernest-Hemingway-Volume-2-1923-1925-by-Ernest-Hemingway.pdf
    • http://kiteeearpdf.myhome.cx/1f210f214f218f212f217f217/The-Tragedy-of-Julius-Caesar-GCSE-English-Illustrated-Student-Edition-with-Wide-Annotation-Friendly-Margins-by-William-Shakespeare.pdf
    • http://kiteeearpdf.myhome.cx/6f213f216f215f219f210/The-Sun-Also-Rises-SparkNotes-Literature-Guide-SparkNotes-Literature-Guide-Series-by-Ernest-Hemingway.pdf
    • http://kiteeearpdf.myhome.cx/7f217f214f212f215f211/Vocabulary-English-and-Hindustani-by-Elphinstone-Pourtales-Robertson.pdf
    • http://kiteeearpdf.myhome.cx/5f210f214f211f215f216/Words-Their-Way-with-English-Learners-Word-Study-for-Phonics-Vocabulary-and-Spelling-by-Lori-R-Helman.pdf
    • http://kiteeearpdf.myhome.cx/4f211f216f214f210f216/Taken-for-English-Valley-of-Choice-3-by-Olivia-Newport.pdf
    • http://kiteeearpdf.myhome.cx/9f216f213f219f211f215/Einfach-Deutsch-lesen-Der-silberne-Kugelschreiber---Kurzgeschichten---Niveau-leicht---With-English-vocabulary-list-by-Angelika-Bohn.pdf
    • http://kiteeearpdf.myhome.cx/2f219f216f212f218f210/A-Study-of-Old-English-Literature-by-C-L-Wrenn.pdf
    • http://kiteeearpdf.myhome.cx/1f210f212f215f217f212f215/The-Bible-in-English-Literature-by-E-W-Wock.pdf
    • http://kiteeearpdf.myhome.cx/4f219f213f216f212f217/Aphrodite-s-Choice-The-Goddess-Diaries-1-by-Christy-English.pdf
    • http://kiteeearpdf.myhome.cx/7f217f213f212f214f213/ANGOL-MAGYAR-T-RSALG-SI-T-M-K-angol-anyanyelv-ekt-l-KEZD-KNEK-English-Hungarian-Conversational-Topics-Elementary-Level-English-Hungarian-Series-English-Hungarian-Fluency-Practice-Book-1-by-Alexander-Pavlenko.pdf
    • http://kiteeearpdf.myhome.cx/5f217f214f212f216f210/Othello-In-the-Original-and-Modern-English-by-William-Shakespeare.pdf
    • http://kiteeearpdf.myhome.cx/2f217f214f216f217f217/Ernest-Hemingway-on-Writing-by-Ernest-Hemingway.pdf
    • http://kiteeearpdf.myhome.cx/6f210f219f216f217f219/Jane-Eyre-and-Related-Readings-Literature-Conections-Source-Book-in-English-and-Spanish-Literature-Connections-Source-Book-by-Charlotte-Bront-.pdf
    • http://kiteeearpdf.myhome.cx/3f216f219f212f215f213/English-Lit-Relit-A-Short-History-of-English-Literature-from-the-Precursors-Before-Swearing-to-the-Pre-Raphaelites-and-a-Little-After-Intended-to-Help-Students-See-the-Thing-Through-or-See-Through-the-Thing-and-Omitting-Nothing-Unimport

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