MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. This link is presented with a lure of 'calculus 1 pdf free download', suggesting a phishing or scam attempt. The presence of a 'download button' heuristic further supports this. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
-
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.
-
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.
-
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.
-
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
-
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.
-
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=calculus+1+pdf+free+download In PDF document text
- http://files.escalantelife.com/uploads/1/3/2/6/132682833/wikemetulusisu.pdfIn PDF document text
- http://files.unstoppableachievers.com/uploads/1/3/1/3/131381078/tanobifarilive-rawatizewalof-taneferasig.pdfIn PDF document text
- http://files.lexasluxuriouslooks.com/uploads/1/3/2/6/132695354/golosisefawev.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/1/0430/0242/9593/files/vitotu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3825/2957/files/folivelaminaruvewo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1918/7862/files/how_to_print_something_out_in_tkinter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/xatejobujir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8087/4139/files/60995411021.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7446/2631/files/wixagavixerut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4483/8303/files/67934623950.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4803/3689/files/726029815.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6276/9302/files/advanced_characterization_techniques.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/58042344448.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6808/7701/files/xakafibew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6978/2693/files/jukifemorebivojejupu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2682/4863/files/82116600157.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000711f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x711F | 5196 bytes |
SHA-256: 16f64c654808e610aac9ccddf7c0076fbe465a4f3478999b252ea358020ffbd4 |
|||
font_01_sfnt_off000082e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82E7 | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
|||
font_02_sfnt_off00008b75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B75 | 10192 bytes |
SHA-256: 137bc2adca108ffba4def799c78a56adedaa06a4c159c133faa807e2ac99a62a |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.