Malicious PDF — malware analysis report

Static analysis result for SHA-256 554602ca09fda453…

MALICIOUS

PDF

15.4 KB Created: 2019-11-07 15:58:21 +00:00 Authoring application: mPDF 5.7
MD5: 96b5369902516efe4887eca36cd99058 SHA-1: 868b951e67af151d6c77c04f33c7f6b55ea428bb SHA-256: 554602ca09fda453a63552059ef5d718009f9894eba0eba4a084ca73c8d83e2c
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded links likely serve to direct users to malicious websites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/1737731737739734/As-You-Wish-Shatterproof-Bond-1-by-Isobel-Starling.pdf
    • http://cefasfese.4pu.com/4738736734739734/Counterblow-Shatterproof-Bond-4-by-Isobel-Starling.pdf
    • http://cefasfese.4pu.com/3731735738737739/Shatterproof-Bond-Series-Boxset-by-Isobel-Starling.pdf
    • http://cefasfese.4pu.com/3731735738738737/Illuminate-the-Shadows-Shatterproof-Bond-2-by-Isobel-Starling.pdf
    • http://cefasfese.4pu.com/1737731737732736/Detective-Fox-and-the-Christmas-Caper-Dick-and-the-Sidekick-1-by-Isobel-Starling.pdf
    • http://cefasfese.4pu.com/1731731733739738/Starling-Starling-1-by-Lesley-Livingston.pdf
    • http://cefasfese.4pu.com/4732733737734736/Silken-Slavery-by-Christina-Shelly.pdf
    • http://cefasfese.4pu.com/2731732735732733/The-Silken-Road-to-Samarkand-by-Janeen-Webb.pdf
    • http://cefasfese.4pu.com/4732733730738732/In-The-Dark-Silken-Threads-1-by-Brynn-Paulin.pdf
    • http://cefasfese.4pu.com/2732730730730732/Silken-Prey-Lucas-Davenport-23-by-John-Sandford.pdf
    • http://cefasfese.4pu.com/8736731739736733/The-Silken-Canopy-History-of-the-Parachute-by-John-Lucas.pdf
    • http://cefasfese.4pu.com/3733733733738732/Starling-by-Sage-Stossel.pdf
    • http://cefasfese.4pu.com/1730738730733732737/Silken-Inspirations-Shadow-Work-Embroidery-Designs-by-Allison-Seils.pdf
    • http://cefasfese.4pu.com/1731731734734/Silken-Threads-Wexford-Family-1-Lords-of-Conquest-1-by-Patricia-Ryan.pdf
    • http://cefasfese.4pu.com/8731739736731734/Swing-Pointe-by-Kissa-Starling.pdf
    • http://cefasfese.4pu.com/1738730730739739/Transcendent-Starling-3-by-Lesley-Livingston.pdf
    • http://cefasfese.4pu.com/1734738737730731/Starling-Secrets-of-the-Eternal-Rose-3-by-Fiona-Paul.pdf
    • http://cefasfese.4pu.com/1739739733737737/Ready-For-Love-Semper-Fi-The-Forever-Faithful-1-by-Stella-Starling.pdf
    • http://cefasfese.4pu.com/6730730739737739/A-midsummer-night-s-dream-With-annotations-by-O-J-Stevenson-Illus-by-Elsie-M-Starling-by-William-Shakespeare.pdf
    • http://cefasfese.4pu.com/4732735734737735/Knox-The-Anatomist-by-Isobel-Rae.pdf
    • http://cefasfese.4pu.com/1730738730733732737/Silken-Inspi

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