MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm and another identifying a redirector to known malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aircraft+maintenance+manual+vs+component+maintenance+manual, which appears to be a redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com and various other domains, suggesting a coordinated effort to distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=aircraft+maintenance+manual+vs+component+maintenance+manual In PDF document text
- http://files.glandwrmill.co.uk/uploads/1/3/2/7/132740485/gadinozuruni.pdfIn PDF document text
- http://files.danlazarusart.com/uploads/1/3/2/7/132710779/sexekotuweta.pdfIn PDF document text
- http://files.vancouverspeedskating.com/uploads/1/3/0/7/130775978/4131864.pdfIn PDF document text
- http://files.christinecarr.com/uploads/1/3/1/4/131407227/2349125.pdfIn PDF document text
- http://files.keirhardiesociety.org/uploads/1/3/0/9/130969089/5801654.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0435/0840/0280/files/fargo_season_1_torrent.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8691/3439/files/93396934111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1851/0745/files/filexixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/3040/0411/files/avast_turn_off_popups.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/fundamentals_of_computer_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0234/files/29665072810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6074/8695/files/95790696455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3199/4280/files/english_to_urdu_vocabulary_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3049/4878/files/membrane_potential_physiology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3524/5216/files/homemade_manual_log_splitter.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60A3 | 5092 bytes |
SHA-256: f80b308c7753d97763e79d0a4f28ac7ed65205708f03367b930a7e86c08c65bc |
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font_01_sfnt_off000071d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D8 | 10080 bytes |
SHA-256: cba68f2fc5429bccce354c7988cb039a18a47daac04c4be4ccb00f4193cf808a |
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font_02_sfnt_off00009458.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9458 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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