Malicious PDF — malware analysis report

Static analysis result for SHA-256 14f60f51884eff5e…

MALICIOUS

PDF

15.9 KB Created: 2019-11-08 07:58:13 +00:00 Authoring application: mPDF 5.7
MD5: 2798c80b3b8a1f9e13e251e9f4ad2d31 SHA-1: fbb09e136e658f58b0f2eb93edebf6ce253cf012 SHA-256: 14f60f51884eff5e6a21bee13a2fefb205adf38a46f7c0e78b24e5d90d03403e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or traffic-driving scheme. While the ML classifier also flagged the PDF as malicious, the specific intent appears to be directing users to a large collection of external PDF documents, rather than executing a direct exploit or dropping a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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/9736730738734/The-Land-Uncharted-Uncharted-1-by-Keely-Brooke-Keith.pdf
    • http://cefasfese.4pu.com/2736735733732738/Uncharted-Redemption-Uncharted-2-by-Keely-Brooke-Keith.pdf
    • http://cefasfese.4pu.com/4732732739739730/Uncharted-Inheritance-Uncharted-3-by-Keely-Brooke-Keith.pdf
    • http://cefasfese.4pu.com/3737738736731737/Descent-by-Julie-Cannon.pdf
    • http://cefasfese.4pu.com/3737737736734731/Just-Business-by-Julie-Cannon.pdf
    • http://cefasfese.4pu.com/2738731733737732/-Mater-Biscuit-by-Julie-L-Cannon.pdf
    • http://cefasfese.4pu.com/1732733730739734/Smoke-and-Fire-by-Julie-Cannon.pdf
    • http://cefasfese.4pu.com/8730735735735734/The-Appalling-Political-Career-of-Luce-Cannon-The-Sad-Tale-of-of-how-Luce-Cannon-Overreaches-and-is-hoist-with-his-own-Petard-by-J-D-Stewart.pdf
    • http://cefasfese.4pu.com/4732739732733736/The-Passage-The-Passage-1-by-Justin-Cronin.pdf
    • http://cefasfese.4pu.com/6735731739730/The-Passage-The-Passage-1-by-Justin-Cronin.pdf
    • http://cefasfese.4pu.com/2737731734737739/The-Passage-The-Passage-1-by-Justin-Cronin.pdf
    • http://cefasfese.4pu.com/6736734733739/The-Passage-The-Passage-1-by-Justin-Cronin.pdf
    • http://cefasfese.4pu.com/7733731736739/Uncharted-TerriTORI-by-Tori-Spelling.pdf
    • http://cefasfese.4pu.com/3738739730738732/Uncharted-The-Fourth-Labyrinth-by-Christopher-Golden.pdf
    • http://cefasfese.4pu.com/2733733731739735/The-Quest-to-the-Uncharted-Lands-World-of-Solace-3-by-Jaleigh-Johnson.pdf
    • http://cefasfese.4pu.com/7733738732733/Uncharted-Freedoms-The-Obama-Change-and-How-Black-Men-Stop-Believing-by-James-Patterson.pdf
    • http://cefasfese.4pu.com/9731737735730/Dark-Passage-Dark-Passage-1-by-M-L-Woolley.pdf
    • http://cefasfese.4pu.com/1733735735737733/Meet-Julie-American-Girls-Julie-1-by-Megan-McDonald.pdf
    • http://cefasfese.4pu.com/1734732735737730/Julie-and-the-Eagles-American-Girls-Julie-4-by-Megan-McDonald.pdf
    • http://cefasfese.4pu.com/9730730738735735/Julie-Julie-von-den-W-lfen-2-by-Jean-Craighead-George.pdf