Malicious PDF — malware analysis report

Static analysis result for SHA-256 a975f71152f05533…

MALICIOUS

PDF

24.9 KB Created: 2019-04-30 05:40:17 +01:00 Authoring application: mPDF 5.7
MD5: 3e74ec29e70101a4d31e67b1c835f4c8 SHA-1: 6f23d001b5c671e59ae09e289792df7c6b8106b0 SHA-256: a975f71152f05533ca19c5df16b44bf190057250033ba90a9244471859f905bd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While the specific intent of the links is unclear due to their benign reputation, the sheer volume and the heuristic firing suggest a malicious purpose, possibly as a lure or a distribution point for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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://muicuiu.dumb1.com/6a06a08a00a06a01/Agnes-Hopper-Shakes-Up-Sweetbriar-The-Adventures-of-Agnes-Hopper-1-by-Carol-Guthrie-Heilman.pdf
    • http://muicuiu.dumb1.com/3a08a00a06a03a04/Quinny-amp-Hopper-Quinny-amp-Hopper-1-by-Adriana-Brad-Schanen.pdf
    • http://muicuiu.dumb1.com/8a07a01a01a09a06/Ein-fast-perfekter-Winter-in-St-Agnes-Liebesromanzen-in-St-Agnes-Cornwall-2-by-Bettina-Reiter.pdf
    • http://muicuiu.dumb1.com/3a03a01a04a09a02/Agnes-Browne-Trilogy-Boxed-Set-The-Mammy-The-Chisellers-The-Granny-Agnes-Browne-1-3-by-Brendan-O-39-Carroll.pdf
    • http://muicuiu.dumb1.com/3a02a07a05a00/These-Is-My-Words-The-Diary-of-Sarah-Agnes-Prine-1881-1901-Arizona-Territories-Sarah-Agnes-Prine-1-by-Nancy-E-Turner.pdf
    • http://muicuiu.dumb1.com/8a00a06a02a03a05/Hopper-by-Marcus-Pfister.pdf
    • http://muicuiu.dumb1.com/5a01a06a05a04a01/Edward-Hopper-by-Ernest-Farr-s.pdf
    • http://muicuiu.dumb1.com/8a09a05a00a09a05/Hopper-by-Rolf-G-nter-Renner.pdf
    • http://muicuiu.dumb1.com/7a07a03a01a00a01/The-Green-Hopper-by-Katherine-Feingold-Hotchner.pdf
    • http://muicuiu.dumb1.com/3a07a00a03a04a04/The-Hopper-Hill-Family-by-Erika-S-Castiglione.pdf
    • http://muicuiu.dumb1.com/6a06a08a03a04a01/Agnes-Martin-Writings-by-Agnes-Martin.pdf
    • http://muicuiu.dumb1.com/8a06a09a07a01a01/Edward-Hopper-Portraits-of-America-by-Wieland-Schmied.pdf
    • http://muicuiu.dumb1.com/3a05a07a08a03a05/Access-Denied-Turing-Hopper-3-by-Donna-Andrews.pdf
    • http://muicuiu.dumb1.com/7a00a04a04a03a04/Familypedia---Ancestry-from-England-ADA-May-Bath-Adella-May-Anthoney-Adrian-William-Bath-Agnes-Ashenden-Agnes-Ethel-Barnett-Albert-Baker-Albert-Henry-Avard-Albert-Victor-Adams-Alexander-Carlton-Apps-Alfred-Apps-Alfred-Bath-Alfred-Edward-Ada-by-Source-Wikia.pdf
    • http://muicuiu.dumb1.com/4a02a02a05a06a00/Partners-in-Slime-Quinny-amp-Hopper-2-by-Adriana-Brad-Schanen.pdf
    • http://muicuiu.dumb1.com/8a04a04a00a06a09/Dennis-Hopper-Photographs-1961-1967-by-Tony-Shafrazi.pdf
    • http://muicuiu.dumb1.com/4a00a03a09a09a07/I-Blame-Dennis-Hopper-And-Other-Stories-from-a-Life-Lived-In-and-Out-of-the-Movies-by-Illeana-Douglas.pdf
    • http://muicuiu.dumb1.com/3a03a00a05a02a01/Puritan-Gift-The-Reclaiming-the-American-Dream-Amidst-Global-Financial-Chaos-by-Kenneth-Hopper.pdf
    • http://muicuiu.dumb1.com/9a07a08a01a03a06/Independent-Travellers-Greek-Island-Hopping-2006-The-Island-Hopper-s-Bible-by-Frewin-Poffley.pdf
    • http://muicuiu.dumb1.com/9a07a08a01a08a00/Independent-Travellers-Greek-Island-Hopping-2005-The-Island-Hopper-s-Bible-by-Frewin-Poffley.pdf