MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=indefinite+and+definite+articles+worksheets+with+answers'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting PDF files. The primary malicious URL is likely used to redirect the user to a further stage of the attack, such as a phishing page or malware download.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=indefinite+and+definite+articles+worksheets+with+answers In PDF document text
- http://vekaxafi.craftyfoxstudio.com/uploads/1/3/1/4/131482995/givibaranu.pdfIn PDF document text
- http://files.leascorner.net/uploads/1/3/1/4/131406544/nidaleroma.pdfIn PDF document text
- http://bonaned.chicagokilnrepair.com/uploads/1/3/1/3/131398252/lerewopeta-xanaxola.pdfIn PDF document text
- http://tapadexo.kellypenmanrealestate.com/uploads/1/3/1/3/131398560/videdovuriteba-mawuvu-fitare.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/1/0432/0896/6301/files/rovijitepujusezeva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0180/6997/files/nifez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1101/2770/files/90014496119.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4540/2277/files/kefukarudodigepotede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8540/5089/files/jigajomidobopilemiwefigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7861/4168/files/wofobevigatara.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7973/6223/files/pemifuxumuwemulor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7702/6463/files/watermelon_farm_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7162/5621/files/39114660893.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3124/8542/files/sample_anecdotal_report_card_comments.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/bonjour_service_windows_7_64_bit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4909/0200/files/github_how_to_create_a_branch.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_off0000c422.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC422 | 2828 bytes |
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f |
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font_01_sfnt_off0000ce1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE1C | 5204 bytes |
SHA-256: 424dddd3823955d23f284b10925415f1af9086c26ca28e8410c9d5f300933c6e |
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font_02_sfnt_off0000dfd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD2 | 9820 bytes |
SHA-256: 2997878d54b8f9a73ccb8cf2a6731fcb1283d5065a30197818ecf0ef1ef0da00 |
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