MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=cbt+worksheet+for+anxiety+pdf'. The document body, though heavily obfuscated, contains text suggesting it is a 'CBT worksheet for anxiety pdf', likely a lure to encourage clicks on the malicious link. The presence of numerous Shopify-hosted PDF links suggests a link farm for SEO poisoning or traffic generation to the primary malicious URL.
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=cbt+worksheet+for+anxiety+pdf In PDF document text
- http://files.smarterartschool.com/uploads/1/3/2/6/132681771/bc7426d.pdfIn PDF document text
- http://files.whilewaitingblog.com/uploads/1/3/2/6/132695668/segezaf-puzenawo-vemovupaliligif-salid.pdfIn PDF document text
- http://files.hislove4us.com/uploads/1/3/1/4/131408788/depapeba-xewipel-sapiwodiju-tikefitimovalig.pdfIn PDF document text
- http://files.farmacybotanical.com/uploads/1/3/2/3/132302973/xutitogesafa-lixoreriberexik-larowuwonubola.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/1/0431/2091/8679/files/47883569140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8158/7093/files/gizizatujasebuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9549/0721/files/xefuwamadosude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/pofelefukifurulajawujetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7201/1931/files/68577512045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8930/5506/files/5e_challenge_rating_to_level.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7707/4077/files/psychology_tamil_book_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0590/1991/files/86666525000.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4639/6326/files/ark_dino_stat_calculator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5401/3336/files/suputaralifakul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0145/4500/files/benzene_toxicity.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8942/8637/files/52617276496.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_off0000bbdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBDF | 5376 bytes |
SHA-256: 1c8f68a94d650ab60fc552a98ccc3354a571ee4d9d81b958e8ca600b2d75eac0 |
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font_01_sfnt_off0000ce36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE36 | 10516 bytes |
SHA-256: d257778caa54b2785d57dee46d469aba762e80274199ab0bf11b73c2294f8523 |
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font_02_sfnt_off0000f1d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D8 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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