Malicious PDF — malware analysis report

Static analysis result for SHA-256 829d87129aa0e2dc…

MALICIOUS

PDF

14.1 KB Created: 2019-05-01 06:25:58 +01:00 Authoring application: mPDF 5.7
MD5: 27faa997d3bd2978b6e10a232fd15181 SHA-1: 1dbd68e4ea0010b21c27f1a52960197770a2840a SHA-256: 829d87129aa0e2dc4c1ec0ec874dc57f8d0e0d6de5d9c5dad466b02753ede5d0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further malicious content. While the document body is heavily obfuscated, the heuristic firings strongly suggest malicious intent, likely related to SEO manipulation or distributing malware. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/8731737739734731/The-Talent-by-B-Remi-Boembeke.pdf
    • http://cefasfese.4pu.com/5736733732731731/Ride-Dirty-by-Remi-Fox.pdf
    • http://cefasfese.4pu.com/5736739739739735/Satisfied-by-R-mi-LeBeau.pdf
    • http://cefasfese.4pu.com/5736733733737738/Under-Orion-s-Belt-by-Remi-Wild.pdf
    • http://cefasfese.4pu.com/5736733731736733/Remi-Sunset-by-Frank-Galli.pdf
    • http://cefasfese.4pu.com/5736733733731734/The-Water-Seekers-by-Remi-Nadeau.pdf
    • http://cefasfese.4pu.com/7732739738732732/Tintin-in-Chennai-by-Georges-Remi.pdf
    • http://cefasfese.4pu.com/5736733733736737/Remi-Charriere-by-Becks-York.pdf
    • http://cefasfese.4pu.com/5736733733731733/The-Little-School-Nurse-That-Could-Episode-2-by-Remi-Aoi.pdf
    • http://cefasfese.4pu.com/8734730738732738/ULTIME-MACHINATION-by-REMI-LAVIE.pdf
    • http://cefasfese.4pu.com/2734736734731733/A-casa-de-Concep-o-by-Remi-Berenguer.pdf
    • http://cefasfese.4pu.com/5736733733732731/The-Little-School-Nurse-That-Could-Episode-3-by-Remi-Aoi.pdf
    • http://cefasfese.4pu.com/5736733733737734/suggokukaradanoEkochan-remi-syasinsyuu-2-by-NOSTYLE.pdf
    • http://cefasfese.4pu.com/4737734735737733/Blood-of-War-Rites-of-Ascension-2-by-Remi-Michaud.pdf
    • http://cefasfese.4pu.com/5736733733731732/Freestyle-1-Action-Sports-Alphas-1-by-Remi-Fox.pdf
    • http://cefasfese.4pu.com/5736733733737735/suggokukaradanoEkochan-remi-syasinsyuu-vol3-by-NOSTYLE.pdf
    • http://cefasfese.4pu.com/5736733732737730/Poetic-Injustice-Writings-on-Resistance-and-Palestine-by-Remi-Kanazi.pdf
    • http://cefasfese.4pu.com/5736733733732738/4th-Grade-Werewolf-The-Big-Life-of-Remi-Muldoon-3-by-Daniel-Kenney.pdf
    • http://cefasfese.4pu.com/5736733733732735/French-Cinema-from-Its-Beginnings-to-the-Present-by-R-mi-Fournier-Lanzoni.pdf
    • http://cefasfese.4pu.com/8735735735738738/Hotels-Particuliers-Du-Xvie-Siecle-a-Toulouse-by-Remi-Papillault.pdf

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