Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4ec4682bdd5fb8…

MALICIOUS

PDF

19.5 KB Created: 2019-05-04 14:11:48 +01:00 Authoring application: mPDF 5.7
MD5: 12771daeb90ccccd5b0a2c9cb40deda8 SHA-1: 04f8c06d03b297a446c2b0271dfac2243ba9546e SHA-256: fe4ec4682bdd5fb89484a139a7421a58447e28869b755865d407cce2d2a5230a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF_SEO_LINK_FARM heuristic indicates the presence of a large number of external links within the document, suggesting a link farm or redirection tactic. While the ML classifier also flagged the PDF as malicious, the specific intent appears to be SEO manipulation or user redirection rather than direct payload delivery, as no scripts were extracted. The majority of the extracted URLs, though numerous, were classified as benign, but the sheer volume and the heuristic firing suggest a malicious intent behind their inclusion.

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://seasasac.lflinkup
    • http://seasasac.lflinkup.com/3da2da9da4da7da8/Steampunk-Soldiers-The-American-Frontier-by-Philip-Smith.pdf
    • http://seasasac.lflinkup.com/3da2da9da4da8da0/Steampunk-Soldiers-Uniforms-amp-Weapons-from-the-Age-of-Steam-by-Philip-Smith.pdf
    • http://seasasac.lflinkup.com/2da5da4da7da2da2/Black-Soldiers-in-Blue-African-American-Troops-in-the-Civil-War-Era-by-John-David-Smith.pdf
    • http://seasasac.lflinkup.com/3da2da9da1da3da8/Steampunk-Prime-A-Vintage-Steampunk-Reader-by-Mike-Ashley.pdf
    • http://seasasac.lflinkup.com/3da3da3da2da5da5/American-Pastoral-The-American-Trilogy-1-by-Philip-Roth.pdf
    • http://seasasac.lflinkup.com/6da1da0da7da5/American-Pastoral-The-American-Trilogy-1-by-Philip-Roth.pdf
    • http://seasasac.lflinkup.com/1da5da9da2da7da3/American-Pastoral-The-American-Trilogy-1-by-Philip-Roth.pdf
    • http://seasasac.lflinkup.com/1da7da8da9da4da3/None-of-Us-Were-Like-This-Before-American-Soldiers-and-Torture-by-Joshua-E-S-Phillips.pdf
    • http://seasasac.lflinkup.com/9da2da0da6da2/None-of-Us-Were-Like-This-Before-American-Soldiers-and-Torture-by-Joshua-E-S-Phillips.pdf
    • http://seasasac.lflinkup.com/1da2da8da6da7da3/New-Frontier-of-Love-American-Wilderness-2-by-Dorothy-Wiley.pdf
    • http://seasasac.lflinkup.com/2da2da1da6da7da6/What-Soldiers-Do-Sex-and-the-American-GI-in-World-War-II-France-by-Mary-Louise-Roberts.pdf
    • http://seasasac.lflinkup.com/1da1da4da7da0da3da7/Westward-Expansion-A-History-of-the-American-Frontier-by-Ray-Allen-Billington.pdf
    • http://seasasac.lflinkup.com/1da5da9da6da8da6/The-First-Way-of-War-American-War-Making-on-the-Frontier-1607-1814-by-John-Grenier.pdf
    • http://seasasac.lflinkup.com/3da7da0da7da3da0/Iroquois-Diplomacy-on-the-Early-American-Frontier-by-Timothy-J-Shannon.pdf
    • http://seasasac.lflinkup.com/2da8da3da1da7/The-Final-Challenge-The-American-Frontier-1804-1845-by-Dale-Van-Every.pdf
    • http://seasasac.lflinkup.com/7da0da6da3da4da7/Nellie-Cashman-amp-the-North-American-Mining-Frontier-by-Don-Chaput.pdf
    • http://seasasac.lflinkup.com/1da9da6da6da4da1/Little-Soldiers-An-American-Boy-a-Chinese-School-and-the-Global-Race-to-Achieve-by-Lenora-Chu.pdf
    • http://seasasac.lflinkup.com/6da6da1da0da0da0/The-Indian-Frontier-of-the-American-West-1846-1890-by-Robert-M-Utley.pdf
    • http://seasasac.lflinkup.com/1da0da2da0da5da9da2/The-Investment-Frontier-New-York-Businessmen-and-the-American-West-by-John-D-Haeger.pdf
    • http://seasasac.lflinkup.com/1da6da8da2da6da4/Cities-of-the-American-West-A-History-of-Frontier-Urban-Planning-by-John-W-Reps.pdf