Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead00168aedb4df7…

MALICIOUS

PDF

21.2 KB Created: 2019-04-30 03:39:15 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-20
MD5: 69ad19a676ab004e196177eb745d01d9 SHA-1: 4bb15f6fccadd57184eaad9ef37edca31ff4daaf SHA-256: ead00168aedb4df73d6641c4fee4d529662c43363eb409d833184d94da0f9940
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which are structured as SEO-friendly book titles, suggesting a link farm designed to trick users into downloading potentially malicious files. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the presence of numerous external links indicates a likely attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/8a02a08a04a05a07/The-Northwest-Passage-The-Seafarers-20-by-Brendan-Lehane.pdf In PDF document text
    • http://muicuiu.dumb1.com/8a02a08a04a04a04/The-Quest-of-Three-Abbots-by-Brendan-Lehane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a02a08a04a01a04/Early-Celtic-Christianity-by-Brendan-Lehane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a02a08a04a05a05/Wild-Ireland-A-Traveller-s-Guide-by-Brendan-Lehane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a01a00a08a00a00/Northwest-Passage-by-William-Dietrich.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a01a00a07a03a09/The-Mirror-Northwest-Passage-5-by-John-A-Heldt.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a04a02a08a06/Northwest-Passage-Annotated-Edition-by-Scott-Chantler.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a08a03a09a07a02/Arctic-Labyrinth-The-Quest-for-the-Northwest-Passage-by-Glyn-Williams.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a03a07a00a05a06/Kabloona-in-the-Yellow-Kayak-One-Woman-s-Journey-Through-the-Northwest-Passage-by-Victoria-Jason.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a07a07a02a04/The-Historic-Northwest-Passage-and-the-Cgc-Storis-The-Story-of-a-Young-Man-Growing-up-in-the-Coast-Guard-in-the-1950S-by-Dick-Juge.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a03a07a00a08a07/Resolute-The-Epic-Search-for-the-Northwest-Passage-and-John-Franklin-and-the-Discovery-of-the-Queen-s-Ghost-Ship-by-Martin-W-Sandler.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a06a08a00a03/Northwest-of-Earth-The-Complete-Northwest-Smith-by-C-L-Moore.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a05a01a04a00a01/The-Conquest-of-the-Great-Northwest-Being-the-Story-of-the-Adventurers-of-England-Known-as-the-Hudson-s-Bay-Company-New-Pages-in-the-History-of-the-Canadian-Northwest-and-Western-States-by-Laut.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a08a00a08/The-Passage-The-Passage-1-by-Justin-Cronin.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a07a01a04a07a09/The-Passage-The-Passage-1-by-Justin-Cronin.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a02a09a02a03a06/The-Passage-The-Passage-1-by-Justin-Cronin.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a06a09a07a02/The-Ancient-Mariners-Seafarers-and-Sea-Fighters-of-the-Mediterranean-in-Ancient-Times-by-Lionel-Casson.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a01a05a09a01a08/Since-We-Fell-by-Dennis-Lehane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a09a08a05a03a06/Der-Abgrund-in-dir-by-Dennis-Lehane.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a02a08a04a01a08/What-Goes-Around-Comes-Around-Brian-McNulty-2-by-Con-Lehane.pdfIn PDF document text

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