MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Ielts writing task 2 pdf free download 2020', suggesting a lure to entice users to click the malicious link. The PDF also contains a large number of external links, many pointing to Shopify domains, which is flagged by PDF_SEO_LINK_FARM. No scripts were extracted from this sample.
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=ielts+writing+task+2+pdf+free+download+2020 In PDF document text
- http://files.airductcleaningftworth.com/uploads/1/3/0/7/130775363/6199148.pdfIn PDF document text
- http://files.timelessvaca.com/uploads/1/3/0/8/130813364/rufix.pdfIn PDF document text
- http://files.strictlyskillsbasketball.com/uploads/1/3/1/6/131636764/4217464.pdfIn PDF document text
- http://files.nannypalooza.com/uploads/1/3/1/4/131437535/bunelekogosiz_zoredegalu.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/1/0433/0812/2280/files/24979075073.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3137/8590/files/abilhand_kids_questionnaire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4795/2294/files/25610218349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5855/1189/files/76673156224.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3367/3380/files/ziwegezividuva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0541/0471/files/tanazinesafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3514/0007/files/gmat_study_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3176/3864/files/65920670906.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/56263318137.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6749/0975/files/xevos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9390/8892/files/small_text_discord.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5326/8642/files/wowowuxasawafixugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5249/8070/files/2811207427.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rixozuxixewu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69F5 | 5364 bytes |
SHA-256: 2365189fb8a592740eabb452b963d9519dcbea6e81b2902675b7eb2310b5d153 |
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font_01_sfnt_off00007c45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C45 | 2252 bytes |
SHA-256: aeee9b2fd577c594ede074a7e3493832e024aab8d381a7c1d16527c2e435dd06 |
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font_02_sfnt_off00008683.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8683 | 10008 bytes |
SHA-256: c30876b31824d725e2806489c88779e47de03e48fadd844c5a33ad5f488c87a7 |
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font_03_sfnt_off0000a8b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8B8 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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