MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=someone+anyone+worksheet+pdf'. Another critical heuristic noted a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. The document body contains garbled text but includes the same malicious URL, reinforcing the redirection attempt.
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=someone+anyone+worksheet+pdf In PDF document text
- http://mulenef.rachelnamba.com/uploads/1/3/0/9/130969904/tavisabi-jirufa-kexug.pdfIn PDF document text
- http://files.tinmasoft.com/uploads/1/3/2/6/132681440/tojisifabudobev.pdfIn PDF document text
- http://files.marksullivan.ca/uploads/1/3/0/7/130775735/kurixunefusaxu.pdfIn PDF document text
- http://files.lembixlab.net/uploads/1/3/0/7/130739686/3978710.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/1/0429/6255/0940/files/alesis_3630_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7196/3296/files/7819646984.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7682/0890/files/18113857430.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6153/3082/files/tuburetesosuduxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7142/9016/files/omni_salary_calculator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/24948043909.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9799/5944/files/22240252794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2049/9616/files/mukisali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8793/7179/files/57547136972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/91273972485.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4230/7239/files/mirazijupom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4872/9766/files/importance_of_coconut_oil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4038/2882/files/60060518950.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_off000065ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65AB | 5352 bytes |
SHA-256: f7cce96342f9fdb6bbe093ec560037997a83a20ffe24d7faeaa6a4f2d2db13dc |
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font_01_sfnt_off000077b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77B4 | 10136 bytes |
SHA-256: b450039c0a1ef346dc203cf24e15002625ba4bdde2939dc247bc34edc99c2f94 |
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font_02_sfnt_off00009a76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A76 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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