Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a02b9551e8c334…

MALICIOUS

PDF

19.4 KB Created: 2019-05-01 18:01:49 +01:00 Authoring application: mPDF 5.7
MD5: 4a8efd7eedd652a2bfc10b4e3370e683 SHA-1: 7745fb3e996f05a6f52847527ba16b63a0bfd76c SHA-256: 04a02b9551e8c334471b1dac213b9b46858dafb265084487e789143620fd9a56
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on a dynamic DNS domain, identified by the 'PDF_SEO_LINK_FARM' heuristic. While the document body itself is obfuscated, the presence of numerous links suggests an attempt to direct users to potentially malicious content or to engage in SEO poisoning. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://cmeinasaoo.duckdns.org/9b20b27b26b21b24/Ein-Bet-rend-Schamloses-Frauenzimmer-Die-Lady-und-der-Abenteurer-Miss-in-Maskerade-Sinnliche-Blume-von-Hongkong-by-Barbara-Monajem.pdf
    • http://cmeinasaoo.duckdns.org/2b24b29b29b26b21/To-Kiss-A-Rake-Scandalous-Kisses-1-by-Barbara-Monajem.pdf
    • http://cmeinasaoo.duckdns.org/2b20b21b20b24/Heart-of-Constantine-Bayou-Gavotte-3-by-Barbara-Monajem.pdf
    • http://cmeinasaoo.duckdns.org/1b22b25b26b24b21/Rend-the-Dark-Rend-the-Dark-1-by-Mark-Gelineau.pdf
    • http://cmeinasaoo.duckdns.org/1b20b27b21b29b22b29/-ber-Sinnliche-Weihnachten-3-ber-Sinnliche-Kurzgeschichten-by-Natalie-Salkin.pdf
    • http://cmeinasaoo.duckdns.org/1b20b27b21b29b27b27/-ber-Sinnliche-Weihnachten-2-3-ber-Sinnliche-Kurzgeschichten-by-Natalie-Salkin.pdf
    • http://cmeinasaoo.duckdns.org/5b20b22b25b20b23/See-No-Evil-My-Pretty-Lady-by-Miss-Mae.pdf
    • http://cmeinasaoo.duckdns.org/2b25b25b24b20b21/David-Blume-s-Alcohol-Can-Be-a-Gas-Fueling-an-Ethanol-Revolution-for-the-21st-Century-by-David-Blume.pdf
    • http://cmeinasaoo.duckdns.org/2b22b22b25b26b23/To-Miss-The-Stars-by-Barbara-Lieberman.pdf
    • http://cmeinasaoo.duckdns.org/3b27b26b25b26b20/Miss-Ranskill-Comes-Home-by-Barbara-Euphan-Todd.pdf
    • http://cmeinasaoo.duckdns.org/4b20b20b26b26b21/Regency-Scandals-The-Mysterious-Miss-M-The-Captain-s-Lady-by-Margaret-McPhee.pdf
    • http://cmeinasaoo.duckdns.org/1b28b21b21b23b25/Lady-of-Hay-by-Barbara-Erskine.pdf
    • http://cmeinasaoo.duckdns.org/3b28b27b27b24b27/Lady-of-Hay-by-Barbara-Erskine.pdf
    • http://cmeinasaoo.duckdns.org/5b23b21b25b29b26/Judy-Blume-and-Lena-Dunham-in-Conversation-by-Judy-Blume.pdf
    • http://cmeinasaoo.duckdns.org/3b27b20b20b22b25/The-Virtuous-Feats-of-the-Indomitable-Miss-Trafalgar-and-the-Erudite-Lady-Boone-by-Geonn-Cannon.pdf
    • http://cmeinasaoo.duckdns.org/4b22b24b23b25b20/My-Lady-InnKeeper-by-Barbara-Metzger.pdf
    • http://cmeinasaoo.duckdns.org/5b22b25b21b28/Dying-For-Revenge-The-Lady-Doc-Murders-1-by-Barbara-Golder.pdf
    • http://cmeinasaoo.duckdns.org/9b21b24b28b21b26/Ein-perfektes-Wochenende-in-Hongkong-by-Nicola-Bramigk.pdf
    • http://cmeinasaoo.duckdns.org/1b21b27b23b21b24b24/Miss-Cranston-s-Omnibus---Recollections-of-Glasgow-Life-Tea-at-Miss-Cranston-s-More-Tea-at-Miss-Cranston-s-Tea-at-Miss-Cranston-s-Century-of-Glasgow-Memories-AND-by-Anna-Blair.pdf
    • http://cmeinasaoo.duckdns.org/9b25b24b29b28b20/Tai-Pan-een-roman-over-Hongkong-Asian-Saga-2-by-James-Clavell.pdf

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