Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86dc781d4af13a5…

MALICIOUS

PDF

16.3 KB Created: 2019-06-04 09:54:27 +01:00 Authoring application: mPDF 5.7
MD5: 51b3b87e57337c2533cde7c76c700473 SHA-1: 15895cfc50626b7419f769b62b8eaa92660366ea SHA-256: c86dc781d4af13a5ce80e503313154efd770cf23678afbe1559f22e419fb53d2
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file exhibits characteristics of a link farm, embedding numerous external links to other PDF documents. This technique is often used for SEO manipulation or to distribute malicious content indirectly. No scripts were extracted from this sample, and the document body was heavily corrupted, limiting further analysis of the specific lure.

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://cefasfese.4pu.com/1730739734738734/The-Magic-Sword-The-Highwater-Saga-Book-1-by-R-J-Knight.pdf
    • http://cefasfese.4pu.com/1730739733732733732/Epic-Fantasy-Sword-of-the-Elves-The-Elven-Saga-Book-1-of-4-by-Emanuel-Fynn.pdf
    • http://cefasfese.4pu.com/3730735737734739/Magic-Knight-Rayearth-II-Vol-1-Magic-Knight-Rayearth-II-1-by-CLAMP.pdf
    • http://cefasfese.4pu.com/6730730736736731/A-Knight-to-Remember-Blood-Sword-Legacy-3-5-by-Karin-Tabke.pdf
    • http://cefasfese.4pu.com/1737732734736733/William-Codex-Knight-of-the-Silver-Sword-by-Brian-Raif.pdf
    • http://cefasfese.4pu.com/1735736732733735/The-Chosen-One-Sword-of-the-Gods-Saga-1-by-Anna-Erishkigal.pdf
    • http://cefasfese.4pu.com/2736730736734/Swords-amp-Dark-Magic-The-New-Sword-and-Sorcery-by-Jonathan-Strahan.pdf
    • http://cefasfese.4pu.com/4736733737734738/Swords-amp-Dark-Magic-The-New-Sword-and-Sorcery-by-Jonathan-Strahan.pdf
    • http://cefasfese.4pu.com/2731738734733734/Zebulon-Quest-The-Sword-of-Fire-The-Artifacts-of-Merlin-Saga-1-by-Tim-Northburg.pdf
    • http://cefasfese.4pu.com/8733738730734735/The-Dragons-Saga-The-Darkness-In-Rockcliff-Episode-I-The-Dragon-Saga-Book-1-by-Michael-Desrosiers.pdf
    • http://cefasfese.4pu.com/4736735730737737/Magic-Knight-Rayearth-2-Omnibus-by-CLAMP.pdf
    • http://cefasfese.4pu.com/1732730736730731/Dragon-Knight-s-Sword-Order-of-the-Dragon-Knights-1-by-Mary-Morgan.pdf
    • http://cefasfese.4pu.com/3730731736737736/A-Thirst-for-Vengeance-The-Ashes-Saga-1-by-Edward-M-Knight.pdf
    • http://cefasfese.4pu.com/1731731734732733/Song-from-the-Earth-American-Indian-Painting-by-Jamake-Highwater.pdf
    • http://cefasfese.4pu.com/4733738731736730/Brazzaville-Charms-Magic-and-Rebellion-in-the-Republic-of-the-Congo-by-Cassie-Knight.pdf
    • http://cefasfese.4pu.com/8737735735737/The-Knight-at-Dawn-Magic-Tree-House-2-by-Mary-Pope-Osborne.pdf
    • http://cefasfese.4pu.com/1731739735731738/A-Spark-of-Magic-Chosen-Saga-1-by-J-L-Clayton.pdf
    • http://cefasfese.4pu.com/1735736734735739/The-Magic-Crystal-The-Dream-Merchant-Saga-1-by-L-T-Suzuki.pdf
    • http://cefasfese.4pu.com/4730733734738730/Wizard-s-Sword-The-Battle-Wizard-Saga-2-by-C-M-Lance.pdf
    • http://cefasfese.4pu.com/1737737735735736/A-Promise-of-Magic-Silver-Moon-Saga-2-5-by-Melissa-Giorgio.pdf