MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented within the document body, disguised as a link for IELTS listening test materials, and also appears in the embedded link farm. The document also contains a low-signal heuristic for a download button lure. The primary malicious URL is https://ttraff.ru/pify?keyword=ielts+listening+actual+test+vol+2+pdf, which is likely used to redirect the user to further malicious content.
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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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.ru/pify?keyword=ielts+listening+actual+test+vol+2+pdf In PDF document text
- http://files.redbridgebuilders.com/uploads/1/3/2/8/132814593/e8a658.pdfIn PDF document text
- http://files.justajourney.org/uploads/1/3/1/4/131409526/465d7247d38.pdfIn PDF document text
- http://files.bridgedlearning.com/uploads/1/3/1/3/131398052/musasosola.pdfIn PDF document text
- http://files.edmontonactorstheatre.ca/uploads/1/3/0/7/130775126/nerizawulewikubis.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/1/0430/3467/3305/files/luxurubewabugelan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6308/2146/files/68422549676.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1425/0905/files/flamenco_guitar_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5802/8959/files/mumejudedarisasexaxojax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1833/6925/files/vertical_bridgman_technique.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/0129/3461/files/kalnirnay_2020_marathi_calendar_download_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2655/4781/files/nrega_scheme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0921/1557/files/wuwuvolodufew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2376/0536/files/vidizunejakevupadoxem.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F9 | 5356 bytes |
SHA-256: a539666cf59317414de72fd8e1bb4c886269204853aab8b5e9aa2ea90808bedf |
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font_01_sfnt_off00007547.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7547 | 9920 bytes |
SHA-256: 8ce5c5b35ab7a514f2462b1c0576d51ad2f6766ef215f72641af9012941cbd31 |
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font_02_sfnt_off00009769.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9769 | 16120 bytes |
SHA-256: 467334b253c03183b8f59c8c7859f446a4d85e3bd71546e4bc7697603d08a064 |
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