MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link directs to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=abrsm+piano+grade+4+scales+pdf, suggesting a lure to download further malicious content. 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.ru/pify?keyword=abrsm+piano+grade+4+scales+pdf In PDF document text
- http://files.78thfrasersmontreal.org/uploads/1/3/1/4/131453245/loviferojosozus.pdfIn PDF document text
- http://files.roejendradesigns.com/uploads/1/3/1/4/131406762/wugagumigejo.pdfIn PDF document text
- http://bedovopu.miamigardensflcarpetcleaning.com/uploads/1/3/1/4/131453850/4079872.pdfIn PDF document text
- http://files.gracesaunders.com/uploads/1/3/2/7/132740458/nejezigokeparupigi.pdfIn PDF document text
- http://files.myapexhomeinspection.com/uploads/1/3/2/6/132681293/8893623.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/1/0437/2457/0792/files/74350030196.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nalekubaserigudopen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3524/7271/files/80445756670.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0032/3478/files/gezelupaxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0098/7811/files/punctuation_marks_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0391/7974/files/student_budget_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9819/3566/files/51475125771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6704/0154/files/23941125778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4749/2506/files/dusakupo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7143/9001/files/90326260192.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1274/1529/files/32884453257.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5584/0409/files/73780448481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2590/7368/files/situpemokibiponusu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/43653448749.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_off000053c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53C1 | 4068 bytes |
SHA-256: 5fef96bbff605ffda97e8034b70d74c7b8c60ddfdedd06e746efe1701e7f4c2c |
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font_01_sfnt_off00006226.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6226 | 5692 bytes |
SHA-256: 032bd9de8a002205e0b39770bad6f88959bd66ce6eeb62bb34730b681a48d02d |
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font_02_sfnt_off00007561.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7561 | 10212 bytes |
SHA-256: 9cf450fab862dc3f1839c9f3547b9c38154b177690130a0a33cd4a2ce3a03ec7 |
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