MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a lure for an answer key to a math assignment, which is a common tactic for social engineering. It embeds numerous links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=answer+key+for+math+8'. Another heuristic identified a large number of external PDF links, suggesting a link farm for SEO poisoning or traffic generation. The presence of a remote-support tool lure further indicates a malicious intent to potentially gain unauthorized access or deliver further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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=answer+key+for+math+8 In PDF document text
- http://vowoxeva.southdevonslinglibrary.com/uploads/1/3/2/7/132740267/feratasupa-savepaxifikano-rusipuzit-kepazeve.pdfIn PDF document text
- http://files.lawncareevansville.com/uploads/1/3/0/9/130969012/rokixan.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7876/9045/files/farming_simulator_2015_demo_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7963/1001/files/7941662243.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3621/9291/files/shikomita_glory_days.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4785/5004/files/69416090119.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4610/9345/files/66619726011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4760/8730/files/vurukisosozupoletubarusil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7015/1061/files/holt_mcdougal_avancemos_1_workbook_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4424/9499/files/1951994007.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7514/1783/files/java_programming_array_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1179/2286/files/videoder_indir_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7715/7542/files/76122350389.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7331/5740/files/fefenixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000080c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80C1 | 5416 bytes |
SHA-256: 68dc803d8d2e2c3ae41172ac0558287a4858b195cab9f658725a1262644fc7fa |
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font_01_sfnt_off00009317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9317 | 10336 bytes |
SHA-256: a88e0e3a250a72f05075abb95d7bb9310e505e185b2963e5cdb3ef8a784ec105 |
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