Malicious PDF — malware analysis report

Static analysis result for SHA-256 10f2b4a8ef390bb2…

MALICIOUS

PDF

32.4 KB Created: 2020-08-02 17:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c46732fc9a4d0dd2d50c29eb400de48 SHA-1: aa54b57afcbb8197628f59983a372bddcfd831cd SHA-256: 10f2b4a8ef390bb2474ecd843bb2d01f6543fb26cb79e5da4f94908c1a5a0dee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=penn+dot+408'. This redirector is likely used to obscure the final malicious destination, which could be a phishing page or a malware download. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm or SEO abuse tactic to distribute malicious content. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.cc/pify?keyword=penn+dot+408 In PDF document text
    • http://files.freshanointingiwc.org/uploads/1/3/1/8/131872281/mafokujujux.pdfIn PDF document text
    • http://files.skyhighclubcaligroup.com/uploads/1/3/1/4/131409074/derifulupi.pdfIn PDF document text
    • http://files.friendsofmillerhouse.org/uploads/1/3/0/8/130874180/rofire.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/the_guy_from_boston.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/xesororinepizisedegukevow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4004/7253/files/hobbit_name_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42778981568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5524/2647/files/kekesobamaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7637/8014/files/babubut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/83479050393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0849/1673/files/96600052736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/vubodis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/nelewoxokerizoputerufeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4371/6262/files/42671211477.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4347 4728 bytes
SHA-256: bb515f861fde9152e8bd755bbc5f440b24aab3406a837efcbff174dac59cb885
font_01_sfnt_off00005377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5377 9996 bytes
SHA-256: 4b712c7a63ceeb4d9f7f3afeb55a4269ecd43a1d0b29f6ea2864d3bb833fb48a

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