MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external links, suggesting a link farm. The primary malicious URL, 'https://ttraff.cc/pify?keyword=basic+elements+of+architectural+design+pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to the same URL, reinforcing its role in the attack. The ML classifier also strongly indicated maliciousness.
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=basic+elements+of+architectural+design+pdf In PDF document text
- http://files.therocksm.org/uploads/1/3/1/0/131070572/533100.pdfIn PDF document text
- http://files.jessedinkelphotography.com/uploads/1/3/0/8/130873769/ca8b7cb2.pdfIn PDF document text
- http://files.buildingourtomorrow.org/uploads/1/3/2/6/132695194/xabibovul.pdfIn PDF document text
- http://files.littlehamptonminiaturerailway.com/uploads/1/3/1/1/131164519/fufisipezi-rikafifujo.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/1/0429/6127/2983/files/rigaberorajoropop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6591/8118/files/cnc_machine_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6901/3157/files/pazazebivatulawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1868/9432/files/engineering_economic_analysis_12th_edition_solutions_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/28874595199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0200/3615/files/brain_parts_and_functions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3606/5438/files/thermal_and_automobile_engineering_book_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4079/8885/files/capparis_cartilaginea.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2880/5789/files/modobutanexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3484/4059/files/95758444267.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/8825824070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0165/1105/files/xonufapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/puvudojakoxukene.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_off00009605.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9605 | 5500 bytes |
SHA-256: 0f3b8acd4e0cc061c81039027fc0e248b2818f7e01292c2951a17eca43f5c833 |
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font_01_sfnt_off0000a884.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA884 | 10104 bytes |
SHA-256: 6ae94bb730d04daab6c3f768f44e58de394c6af7c7ac526d1829ecf27d6f2818 |
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font_02_sfnt_off0000cb17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB17 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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