MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as an answer key for algebra lessons. This suggests a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive document body and a malicious URL.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/123?keyword=lesson+master+answers+algebra In PDF document text
- https://cdn-cms.f-static.net/uploads/4365591/normal_5f932bac80a78.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369336/normal_5f8dbccf7db24.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/1/0431/8950/2110/files/google_assistant_para_android_4.4.2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/1772/9723/files/kapalatetapovuwaka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5544/7201/files/superhero_mad_libs_printable.pdfIn PDF document text
- https://s3.amazonaws.com/fokapikow/written_business_plan_samples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/6354/9338/files/brahmacharya_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/3745/6032/files/47847604664.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/3097/3080/files/learn_english_for_spanish_speakers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/1274/1022/files/theme_of_beware_of_the_dog_by_roald_dahl.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_off0000542e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x542E | 5180 bytes |
SHA-256: 6a2442042210870f241b122c1d5ecfbe702a40c94930e54390a0ddff8c35fef8 |
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font_01_sfnt_off000065c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65C9 | 10556 bytes |
SHA-256: f4841c81489e9f6840cbc874df6225c5b10e240e9d69dd0773cd79efacdcb8b4 |
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