Malicious PDF — malware analysis report

Static analysis result for SHA-256 08707ad03fba50bf…

MALICIOUS

PDF

17.5 KB Created: 2019-05-01 05:24:46 +01:00 Authoring application: mPDF 5.7
MD5: 5dc1aa06fbcc2e687861777a11e85df3 SHA-1: d47ce494d6ac9b16a58d5e6e951144c1921aa325 SHA-256: 08707ad03fba50bf986fc8679573fe65b54fff7b273edc93a136acbc784e061f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, many of which are hosted on the suspicious domain 'cefasfese.4pu.com'. This heuristic firing suggests a link farm or a method to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/5735733731732736/The-Psychology-of-the-Infant-by-Bernfeld-Siegfried.pdf
    • http://cefasfese.4pu.com/3737738738739735/The-Interpersonal-World-Of-The-Infant-A-View-from-Psychoanalysis-and-Developmental-Psychology-by-Daniel-N-Stern.pdf
    • http://cefasfese.4pu.com/8732732732732736/Criminal-Psychology-Topics-in-Applied-Psychology-by-David-Canter.pdf
    • http://cefasfese.4pu.com/7737730732733730/Psychology-in-the-Spirit-Contours-of-a-Transformational-Psychology-by-John-H-Coe.pdf
    • http://cefasfese.4pu.com/5736730736733734/The-Collected-Poems-of-Siegfried-Sassoon-by-Siegfried-Sassoon.pdf
    • http://cefasfese.4pu.com/5735733731735736/The-Kaieteur-Caper-by-Peter-N-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733731734739/The-Poisoned-Pastie-by-Peter-N-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733731734735/Erection-and-Inspection-of-Iron-and-Steel-Constructions-by-L-M-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733731734738/Afterdeath-A-Barnikel-and-Fearnaught-Occult-Detective-Thriller-by-Peter-N-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733731734737/Erection-and-Inspection-of-Iron-and-Steel-Constructions-by-Lupescu-Morris-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733730731737/IT-Free-Fall-The-Business-Owner-s-Guide-to-Avoiding-Technology-Pitfalls-by-Nick-Bernfeld.pdf
    • http://cefasfese.4pu.com/5735733731734733/Victor-in-The-Netherworld-A-Barnikel-and-Fearnaught-Occult-Detectives-Thriller-Book-3-by-Peter-N-Bernfeld.pdf
    • http://cefasfese.4pu.com/8733739738738738/The-Infant-s-World-by-Philippe-Rochat.pdf
    • http://cefasfese.4pu.com/9730737734731731/Infant-Baptism-by-John-P-Sartelle.pdf
    • http://cefasfese.4pu.com/9730737737733736/The-Cubist-Infant-by-Justus-Ballard.pdf
    • http://cefasfese.4pu.com/9739732738737737/Infant-and-Toddler-Experiences-by-Fran-Hast.pdf
    • http://cefasfese.4pu.com/3739736733/How-to-Party-with-an-Infant-by-Kaui-Hart-Hemmings.pdf
    • http://cefasfese.4pu.com/9730737735734730/Infant-Baptism-in-the-First-Four-Centuries-by-Joachim-Jeremias.pdf
    • http://cefasfese.4pu.com/9730737734730738/The-Case-for-Covenantal-Infant-Baptism-by-Gregg-Strawbridge.pdf
    • http://cefasfese.4pu.com/9730737736735735/A-Biblical-Critique-of-Infant-Baptism-by-Matt-Waymeyer.pdf

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