Malicious PDF — malware analysis report

Static analysis result for SHA-256 091cc55be9f1ce25…

MALICIOUS

PDF

29.3 KB Created: 2019-05-03 05:12:40 +01:00 Authoring application: mPDF 5.7
MD5: 4bb643b3dc81a6b8d4fa4581d6c3eb2b SHA-1: c062e9833886a9199d3c1ff75c3b7ea8df3deaf1 SHA-256: 091cc55be9f1ce25780335df53b07a2c56268e8d8761a519358d4570a85bafda
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a large number of embedded external links, many of which point to other PDF files. This behavior is indicative of a link farm or a phishing lure designed to direct users to potentially malicious content. The document body itself is heavily obfuscated, preventing a clear understanding of its immediate purpose beyond hosting these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9700

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/5730738735736731/Women-and-Public-Life-in-Early-Meiji-Japan-The-Development-of-the-Feminist-Movement-by-Mara-Patessio.pdf
    • http://cefasfese.4pu.com/4732733737730736/A-Politically-Incorrect-Feminist-Creating-a-Movement-with-Bitches-Lunatics-Dykes-Prodigies-Warriors-and-Wonder-Women-by-Phyllis-Chesler.pdf
    • http://cefasfese.4pu.com/1738739737739733/The-Feminist-Bookstore-Movement-Lesbian-Antiracism-and-Feminist-Accountability-by-Kristen-Hogan.pdf
    • http://cefasfese.4pu.com/7733736735739739/Keigo-in-Modern-Japan-Polite-Language-from-Meiji-to-the-Present-by-Patricia-J-Wetzel.pdf
    • http://cefasfese.4pu.com/7731733732731733/Essays-on-the-Modern-Japanese-Church-Christianity-in-Meiji-Japan-by-Yamaji-Aizan.pdf
    • http://cefasfese.4pu.com/4737739732734734/Public-Women-Public-Words-A-Documentary-History-of-American-Feminism-by-Dawn-Keetley.pdf
    • http://cefasfese.4pu.com/4737730732735731/The-Power-Of-Feminist-Art-The-American-Movement-Of-The-1970s-History-And-Impact-by-Norma-Broude.pdf
    • http://cefasfese.4pu.com/4734733730733/A-Dance-to-the-Music-of-Time-Complete-Set-1st-Movement-2nd-Movement-3rd-Movement-4th-Movement-by-Anthony-Powell.pdf
    • http://cefasfese.4pu.com/7730734734733730/Adventures-of-a-Young-Sculptor-The-Development-and-Early-Life-of-Avard-T-Fairbanks-a-20th-Century-American-Sculptor-by-Eugene-F-Fairbanks.pdf
    • http://cefasfese.4pu.com/9734731737730731/Women-Seeing-Women-From-the-Early-Days-of-Photography-to-the-Present-by-Lothar-Schirmer.pdf
    • http://cefasfese.4pu.com/4737739732734737/Battling-Pornography-The-American-Feminist-Anti-Pornography-Movement-1976-1986-by-Carolyn-Bronstein.pdf
    • http://cefasfese.4pu.com/1735733731734733/My-Red-Blood-A-Memoir-of-Growing-Up-Communist-Coming-Onto-the-Greenwich-Village-Folk-Scene-and-Coming-Out-in-the-Feminist-Movement-by-Alix-Dobkin.pdf
    • http://cefasfese.4pu.com/1731733739738737738/What-I-did-for-my-3-sons-who-entered-The-University-of-Tokyo-after-graduating-from-public-high-school-in-Japan-by-SUGIMASA-MITSUKO.pdf
    • http://cefasfese.4pu.com/8730739733737733/Nicaragua-Back-from-the-Dead-an-Anthropological-View-of-the-Sandinista-Movement-in-the-Early-21st-Century-by-Johannes-Wilm.pdf
    • http://cefasfese.4pu.com/7737736732731737/Feminist-Auteurs-Reading-Women-s-Films-by-Geetha-Ramanathan.pdf
    • http://cefasfese.4pu.com/1738733731737730/Animals-and-Women-Feminist-Theoretical-Explorations-by-Carol-J-Adams.pdf
    • http://cefasfese.4pu.com/2735736735737735/Globalizing-Women-Transnational-Feminist-Networks-by-Valentine-M-Moghadam.pdf
    • http://cefasfese.4pu.com/3735739730734730/Sun-and-Cross-The-Development-from-Megalithic-Culture-to-Early-Christianity-in-Ireland-by-Jakob-Streit.pdf
    • http://cefasfese.4pu.com/7739736734733736/The-Politics-of-Dialogic-Imagination-Power-and-Popular-Culture-in-Early-Modern-Japan-by-Katsuya-Hirano.pdf
    • http://cefasfese.4pu.com/5734733733734739/The-Big-Feminist-BUT-Comics-about-Women-Men-and-the-IFs-ANDs-amp-BUTs-of-Feminism-by-Shannon-O-39-Leary.pdf

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