MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.ru/pify?keyword=hydrate+practice+problems+worksheet+with+answers', suggesting a lure to a potentially malicious site. The presence of numerous other links to external PDFs, many hosted on Shopify, indicates a link farm strategy, likely for SEO manipulation or to host further malicious content.
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=hydrate+practice+problems+worksheet+with+answers In PDF document text
- http://files.cotonevineyards.com/uploads/1/3/0/7/130740521/jitef.pdfIn PDF document text
- http://files.wouldgodmilkagoat.com/uploads/1/3/1/0/131071243/gibegonoritusaged.pdfIn PDF document text
- http://files.ssaohiostate.com/uploads/1/3/1/4/131437363/megefutobenux_jenubigi.pdfIn PDF document text
- http://files.accemployees.com/uploads/1/3/1/4/131453636/53945fae94.pdfIn PDF document text
- http://files.belmenphotography.com.au/uploads/1/3/0/7/130738841/sibedazura.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/7084/9181/files/runerubamedazepamefurase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4267/6648/files/celta_reading_lesson_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/14832833782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4116/8283/files/wamuxukedekuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1301/2641/files/fapuwoter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8510/3255/files/botidal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4647/7725/files/purcell_electricity_and_magnetism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2718/3269/files/equations_worksheet_ks3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0772/0093/files/xifogatewevokek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0576/9888/files/dijijimaxutin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2496/2968/files/budget_planning_sheet.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007c07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C07 | 5460 bytes |
SHA-256: 0fd078b94131d7bb8371dc28436fbb9654c24fcbdeb968988bf9ca9988e4dbf6 |
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font_01_sfnt_off00008e6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E6B | 13684 bytes |
SHA-256: 68dea3807605d84ae277cf6774740d0b0a1f7f00d0fa9d111019b68171816222 |
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font_02_sfnt_off0000b9ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9EA | 16060 bytes |
SHA-256: c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c |
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font_03_sfnt_off0000ce7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE7E | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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