MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high density of external links, many of which point to a redirector service. The primary malicious link, https://ttraff.cc/pify?keyword=addressing+modes+of+8086+microprocessor+pdf, is designed to obscure the final destination. The ML classifier strongly indicated maliciousness, and the PDF structure itself is indicative of a link farm used for SEO poisoning or phishing.
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=addressing+modes+of+8086+microprocessor+pdf In PDF document text
- http://files.professorsilverblank.com/uploads/1/3/0/8/130814078/bc31c52f8b.pdfIn PDF document text
- http://files.artsmartmanila.com/uploads/1/3/1/8/131856041/9477478.pdfIn PDF document text
- http://files.andygibsontv.com/uploads/1/3/0/8/130873855/sijosu.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/1/0432/7689/4372/files/84731461588.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1813/3405/files/56180436498.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0333/0208/files/gotipiruxiwebotonixa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6629/2389/files/45317255872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6482/6783/files/96819854905.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9073/9361/files/22704405051.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9431/9009/files/cardiac_sternal_precautions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3276/3801/files/viwutosovuxifur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4570/0262/files/baseball_card_price_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5901/9933/files/75972668210.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5573/4167/files/carboprost_tromethamine_davis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8034/3967/files/beginner_rhythm_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0649/8728/files/lulonefopodaruworusap.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_off0000b5e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5E2 | 5420 bytes |
SHA-256: 556034fd71f6f4211bec903fe27e2c978479ed42a64797e607bea54899e989f0 |
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font_01_sfnt_off0000c82e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC82E | 10632 bytes |
SHA-256: 7f1c50e26b2dbb44fabec89e4e648c6358be242869615d4aa96aee5d5aac897c |
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font_02_sfnt_off0000ec7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC7C | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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