Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1afe5e430ef4d39…

MALICIOUS

PDF

23.5 KB Created: 2019-05-01 18:31:31 +01:00 Authoring application: mPDF 5.7
MD5: 6e2a949d194bb30d3bba80f3cf1650b0 SHA-1: 7ee410baa54bf215ab8b90d89fa5e58733c61ecc SHA-256: f1afe5e430ef4d390b71dad46d79144ace047e2152e0c16a48d7b1852420902b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. While most of these URLs were classified as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO spam 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 0.9903

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://unieoooq.linkpc.net/34e94e14e94e64e8/The-Log-of-a-Circumnavigator-Being-a-Series-of-Informal-Narratives-Descriptive-of-a-Trip-around-the-World-by-Charles-A-Johnson.pdf
    • http://unieoooq.linkpc.net/44e44e24e64e84e9/Interpreting-Women-s-Lives-Feminist-Theory-and-Personal-Narratives-by-Personal-Narratives-Group.pdf
    • http://unieoooq.linkpc.net/14e84e54e24e44e1/The-20th-Century-Children-s-Book-Treasury-Celebrated-Picture-Books-and-Stories-to-Read-Aloud-by-Janet-Schulman.pdf
    • http://unieoooq.linkpc.net/34e14e24e34e84e4/Pirates-Don-t-Knit-Children-s-Book-Funny-Rhyming-Bedtime-Story---Picture-Book-Beginner-Reader-About-Being-Yourself-Ages-3-7-Top-of-the-Wardrobe-Gang-Picture-by-Melinda-Kinsman.pdf
    • http://unieoooq.linkpc.net/64e84e44e14e34e8/Book-of-Pirates-The-by-Jamaica-Rose.pdf
    • http://unieoooq.linkpc.net/44e94e44e44e14e5/The-Pirates-Pocket-book-by-Stuart-Robertson.pdf
    • http://unieoooq.linkpc.net/44e94e44e24e04e6/Pirates-Ghosts-and-Coastal-Lore-The-Best-of-Judge-Whedbee-by-Charles-Harry-Whedbee.pdf
    • http://unieoooq.linkpc.net/14e74e64e94e24e0/The-Care-amp-Feeding-of-Pirates-Regency-Pirates-3-by-Jennifer-Ashley.pdf
    • http://unieoooq.linkpc.net/44e84e14e44e14e4/The-Edge-Chronicles-7-The-Last-of-the-Sky-Pirates-First-Book-of-Rook-by-Chris-Riddell.pdf
    • http://unieoooq.linkpc.net/64e84e34e14e54e9/Fernande-The-Only-Correct-and-Authentic-Synopsis-of-the-Play-Taken-from-the-Prompt-Book-of-Signora-Eleonora-Duse-Together-with-a-Sketch-of-Her-Life-by-Antonio-Bracco-by-Victorien-Sardou.pdf
    • http://unieoooq.linkpc.net/14e14e24e54e34e64e4/Der-gestiefelte-Kater-Kot-v-sapogah-Charles-Perrault-Zweisprachig-in-Deutsch-und-Russisch-Dual-Language-Illustrated-Children-s-Book-by-Charles-Perrault.pdf
    • http://unieoooq.linkpc.net/54e64e14e84e34e2/The-Book-of-Buried-Treasure-Being-a-True-History-of-the-Gold-Jewels-and-Plate-of-Pirates-Galleons-etc-which-are-sought-for-to-this-day-by-Ralph-Delahaye-Paine.pdf
    • http://unieoooq.linkpc.net/44e14e74e74e04e8/Canada-Counts-A-Charles-Pachter-Counting-Book-by-Charles-Pachter.pdf
    • http://unieoooq.linkpc.net/14e84e84e54e74e2/Grave-Robbers-by-Samantha-Bayarr.pdf
    • http://unieoooq.linkpc.net/74e44e84e7/Summer-Hours-at-the-Robbers-Library-by-Sue-Halpern.pdf
    • http://unieoooq.linkpc.net/44e54e44e84e34e9/Grave-Robbers-by-James-Ward-Kirk.pdf
    • http://unieoooq.linkpc.net/44e54e44e74e64e6/The-Grave-Robbers-Of-Genghis-Khan-Children-Of-The-Lamp-7-by-P-B-Kerr.pdf
    • http://unieoooq.linkpc.net/24e74e04e14e3/47-Rules-of-Highly-Effective-Bank-Robbers-by-Troy-Cook.pdf
    • http://unieoooq.linkpc.net/44e84e04e64e44e8/The-Big-Hungry-Bear-Quick-as-a-Cricket-Twenty-Four-Robbers-by-Audrey-Wood.pdf
    • http://unieoooq.linkpc.net/44e74e84e34e44e4/Imam-Ghazzali-and-the-robbers-of-khorasan-Meet-the-luminaries-1-by-Hasim-Nabeel.pdf
    • http://unieoooq.linkpc.net/34e14e24e34e84e4/Pirates-Don-t-Knit-Children-s-Book-Funny-Rhyming-Bedtime-Story---Picture-Book-Beginner-Reader-About-Being-

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