Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca8df825c01d279…

MALICIOUS

PDF

17.1 KB Created: 2019-05-01 05:15:39 +01:00 Authoring application: mPDF 5.7
MD5: e3b0b89038a5077880d89b37ccaa621c SHA-1: d557a9e408b09c069939cafd9e6bb9b08c5995be SHA-256: 1ca8df825c01d27960e1273df57d5d119a1719c8ab7d7b82a217d52b65474b33
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded URLs, identified by the 'PDF_SEO_LINK_FARM' heuristic, which are presented as book titles. These links likely lead to malicious PDF files, as indicated by the 'ML_NYX_PDF_MALICIOUS' and 'ClamAV_DETECTION' firings. The primary attack pattern involves tricking users into downloading further malicious content through a deceptive link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7186974-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7186974-0
  • 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/2739732738732734/War-at-the-Edge-of-the-World-Twilight-of-Empire-1-by-Ian-James-Ross.pdf
    • http://cefasfese.4pu.com/3735731739739735/Imperial-Vengeance-Twilight-of-Empire-5-by-Ian-James-Ross.pdf
    • http://cefasfese.4pu.com/1738738732730739/At-the-Edge-of-Her-Memory-by-Sandra-Ross.pdf
    • http://cefasfese.4pu.com/2735738730733734/Twilight-of-Empire-The-Tragedy-at-Mayerling-and-the-End-of-the-Habsburgs-by-Greg-King.pdf
    • http://cefasfese.4pu.com/3733733738734732/The-Empire-s-Edge-by-Kelly-McCrady.pdf
    • http://cefasfese.4pu.com/6733738736737/The-Villa-at-the-Edge-of-the-Empire-by-Fiona-Farrell.pdf
    • http://cefasfese.4pu.com/2739731737738738/Straight-Edge-Hardcore-Punk-Clean-Living-Youth-and-Social-Change-by-Ross-Haenfler.pdf
    • http://cefasfese.4pu.com/4736732736732738/The-Forest-at-the-Edge-of-the-World-Book-One-Forest-at-the-Edge-series-by-Trish-Mercer.pdf
    • http://cefasfese.4pu.com/3739738731734739/Razor-s-Edge-Star-Wars-Empire-and-Rebellion-1-by-Martha-Wells.pdf
    • http://cefasfese.4pu.com/4732736736739737/The-Death-and-Life-of-Zebulon-Finch-Vol-1-At-the-Edge-of-Empire-by-Daniel-Kraus.pdf
    • http://cefasfese.4pu.com/2733730738730737/The-Complete-Empire-Trilogy-Daughter-of-the-Empire-Mistress-of-the-Empire-Servant-of-the-Empire-The-Empire-Trilogy-1-3-by-Raymond-E-Feist.pdf
    • http://cefasfese.4pu.com/1730735739735731733/Eden-s-Twilight-Deathlands-86-by-James-Axler.pdf
    • http://cefasfese.4pu.com/6731739739733735/Crude-World-The-Violent-Twilight-of-Oil-by-Peter-Maass.pdf
    • http://cefasfese.4pu.com/4735731734731736/They-Don-t-Dance-Much-by-James-Ross.pdf
    • http://cefasfese.4pu.com/1732734736734732/Pabby-s-Score-by-James-Ross.pdf
    • http://cefasfese.4pu.com/5736732739734738/How-Green-Was-My-Valet-by-Ian-James-Ross.pdf
    • http://cefasfese.4pu.com/1732737739730736/Opur-s-Blade-by-James-Ross.pdf
    • http://cefasfese.4pu.com/1736730738737/The-Years-with-Ross-by-James-Thurber.pdf
    • http://cefasfese.4pu.com/3732739734734738/Clockwork-Chaos-by-James-Daniel-Ross.pdf
    • http://cefasfese.4pu.com/3733730737732735/The-World-of-Edward-Gorey-by-Clifford-Ross.pdf
    • http://cefasfese.4pu.com/3

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