MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains text related to 'worksheet answers' and includes the malicious URL, indicating a lure to redirect users. No scripts were extracted, but the presence of numerous links and the malicious redirector strongly suggests a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=commas+in+dates+and+addresses+worksheet+answers
- http://bufopi.kimmydee.com/uploads/1/3/1/8/131871699/5724574.pdf
- http://files.wildridecreations.com/uploads/1/3/2/3/132303270/d061640baef9.pdf
- http://kekalep.crowdedbedcreations.com/uploads/1/3/0/7/130738970/nixerox_badezolipifijij_wafiju_remofera.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/6894/7616/files/fogomesenidumutu.pdf
- https://cdn.shopify.com/s/files/1/0433/5271/9515/files/77017338861.pdf
- https://cdn.shopify.com/s/files/1/0432/5058/1662/files/rita_form_17.pdf
- https://cdn.shopify.com/s/files/1/0431/0056/9766/files/58589138961.pdf
- https://cdn.shopify.com/s/files/1/0430/6495/0946/files/99722029522.pdf
- https://cdn.shopify.com/s/files/1/0433/7614/8641/files/electric_power_distribution_system_engineering.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdf
- https://cdn.shopify.com/s/files/1/0432/0264/2075/files/banking_awareness_by_arihant_publications_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/7022/5558/files/41760116355.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004ff9.bin8ba734bee664396a22620667ae8c64ce979c1aa024002912f0db537bc35c6310 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FF9 | 5092 bytes |
font_01_sfnt_off00006123.bina9eebaed569ea30af3639f78e93f9322b03a2b385365c67b16f4cc30d9585346 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6123 | 10308 bytes |
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