MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link disguised as business English interview vocabulary, which redirects to a known malicious infrastructure. It also features a large number of external PDF links, many of which are benign Shopify URLs, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious.
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/wix?keyword=business+english+interview+vocabulary
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/applied_science_questions.pdf
- https://cdn.shopify.com/s/files/1/0462/3925/2631/files/classifying_and_balancing_chemical_reactions_answers.pdf
- https://cdn.shopify.com/s/files/1/0432/2344/9760/files/quick_ride_bdo.pdf
- https://cdn.shopify.com/s/files/1/0440/6971/6118/files/jabotepaburoga.pdf
- https://static.usrfiles.com/ugd/b58d21_0788202e340a4b68a2f512eac51217c8.pdf
- https://static.usrfiles.com/ugd/b8c837_04a9088c91d04310bb45db85d40dc994.pdf
- https://static.usrfiles.com/ugd/12f4eb_e189b03df570492fa86ffc3e7767e333.pdf
- https://static.usrfiles.com/ugd/d4da64_112b72b94fc744a98234865dc6b10113.pdf
- https://static.usrfiles.com/ugd/1d64af_69399ea5d212405aa0d022874e0326bb.pdf
- https://static.usrfiles.com/ugd/b8c837_d29235c1929843d69cb03509ddb847cf.pdf
- https://static.usrfiles.com/ugd/b8c837_2dab864b09424ea39e6afd3326ba8111.pdf
- https://cdn.shopify.com/s/files/1/0435/0178/1156/files/chama_chama_song_video_3gp.pdf
- https://cdn.shopify.com/s/files/1/0433/9836/5340/files/wenasogoduxedekarolu.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2557/files/88454269517.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_off0000626a.binab2faee260dde3e34cf6d9b6ec0d6f38603b79caa0a67f67d4cdba7275c38ada |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x626A | 5504 bytes |
font_01_sfnt_off0000752c.bin11f15f9ef94c680d60b385a36425fbfdb7aafd45df623f071b6fb9a34c665f67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x752C | 9684 bytes |
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