MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the URL https://ttraff.cc/pify?keyword=ansys+2019+r3, suggesting a lure to a potentially malicious site. The presence of numerous PDF links, many hosted on Shopify, indicates an attempt to create a link farm for SEO poisoning or to distribute malicious content.
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=ansys+2019+r3 In PDF document text
- http://files.zona-67.com/uploads/1/3/1/4/131453713/wogudama-zasarede-dexosoteku-fefajenagaf.pdfIn PDF document text
- http://files.sldreads.com/uploads/1/3/1/3/131398406/bawetunoretunu-zajavukonaz-fusuzaro-vuvevi.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/1/0431/5391/6053/files/simple_home_plans.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8017/0137/files/51689358853.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/duxaladumorabujavok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2784/0675/files/46423438458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4420/8797/files/neziporoxunanakorufes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9150/6840/files/98296398618.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/76228792734.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9289/3093/files/12_volt_car_battery_charger_circuit_diagram.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0550/1852/files/ansys_manual_anna_university.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5130/0517/files/reduce_size_illustrator_cc.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/lurazesiboxavafubufudesu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5766/7487/files/hybridization_in_chemistry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6412/1752/files/vofilasibufisexodutanad.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_off000078e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78E1 | 4608 bytes |
SHA-256: f7095ad2ac8bc4e88526ce6194f9b35ffeeb8f9ed70fd2efa1716bc26834eff8 |
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font_01_sfnt_off0000886c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x886C | 10380 bytes |
SHA-256: 388f76236df5e7973dfa69185cad28542663628ccb4dc3f2fc108d82e37b566d |
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font_02_sfnt_off0000ab24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB24 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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