Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4177f7cf26ea6cc…

MALICIOUS

PDF

20.7 KB Created: 2019-05-02 07:10:02 +01:00 Authoring application: mPDF 5.7
MD5: 10ec3ad70eed25bf811ee6ab4578e375 SHA-1: 21af9e7ab5aab122e2449902829ba9ea4aebb02b SHA-256: c4177f7cf26ea6cc2b772e3fe24b4e5c3166edc47a0114b18ea60c5edb2fd357
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://cefasfes
    • http://cefasfese.4pu.com/1739734733730736/The-Ghosts-on-87th-Lane-A-True-Story-by-M-L-Woelm.pdf
    • http://cefasfese.4pu.com/2735735730732730/Ghosts-of-Company-K-Based-on-a-True-Story-by-Oliver-Phipps.pdf
    • http://cefasfese.4pu.com/1736737731737/Pretty-Jane-and-the-Viper-of-Kidbrooke-Lane-A-True-Story-of-Victorian-Law-and-Disorder-The-Unsolved-Murder-that-Shocked-Victorian-England-by-Paul-Thomas-Murphy.pdf
    • http://cefasfese.4pu.com/7735732737730/Ghosts-True-Encounters-from-the-World-Beyond-by-Hans-Holzer.pdf
    • http://cefasfese.4pu.com/1738737734731736/The-Downside-Ghosts-Unholy-Ghosts-Unholy-Magic-City-of-Ghosts-Downside-Ghosts-1-3-by-Stacia-Kane.pdf
    • http://cefasfese.4pu.com/3733734738737736/Canadian-Psycho-The-True-Story-of-Luka-Magnotta-Crimes-Canada-True-Crimes-That-Shocked-the-Nation-5-by-Cara-Lee-Carter.pdf
    • http://cefasfese.4pu.com/6738734735732732/A-Story-of-Noelle-by-Mika-Lane.pdf
    • http://cefasfese.4pu.com/5730737737739736/The-Ghosts-of-Medak-Pocket-The-Story-of-Canada-s-Secret-War-by-Carol-Off.pdf
    • http://cefasfese.4pu.com/1739734732732731/Coast-to-Coast-Ghosts-True-Stories-of-Hauntings-Across-America-by-Leslie-Rule.pdf
    • http://cefasfese.4pu.com/1730731732738733/The-Story-of-the-Moors-After-Spain-by-Stanley-Lane-Poole.pdf
    • http://cefasfese.4pu.com/4735738731735735/Amanda-s-Story-Girls-of-Lighthouse-Lane-Series-4-by-Thomas-Kinkade.pdf
    • http://cefasfese.4pu.com/1732733732739736/An-Emergence-Of-Ghosts-Seven-Ghosts---The-BirdOfPrey-Chronicles-2-by-Brian-T-L-Strauss.pdf
    • http://cefasfese.4pu.com/6733734736739/NARUTO------Naruto-Itachi-Shinden-K-my--hen-Naruto-True-Chronicles-1-Itachi-s-True-Story-Book-of-Bright-Light-by-Masashi-Kishimoto.pdf
    • http://cefasfese.4pu.com/1735735737734732/City-of-Ghosts-Downside-Ghosts-3-by-Stacia-Kane.pdf
    • http://cefasfese.4pu.com/3731738730733736/Horror-Stories-51-Sleepless-Nights-Thriller-short-story-collection-about-Demons-Undead-Paranormal-Psychopaths-Ghosts-Aliens-and-Mystery-by-Tobias-Wade.pdf
    • http://cefasfese.4pu.com/8732738739736/Ice-87th-Precinct-36-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/1739736736733739/The-True-Story-of-Lu-Xun-by-David-E-Pollard.pdf
    • http://cefasfese.4pu.com/2736736731732733/Poison-87th-Precinct-39-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/4739732737735739/Mischief-87th-Precinct-45-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/5730732738730730/Bread-87th-Precinct-29-by-Ed-McBain.pdf

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