MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=fybsc+physics+practical+book+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The primary intent appears to be directing users to malicious infrastructure under the guise of providing a physics book.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=fybsc+physics+practical+book+pdf In PDF document text
- http://solowojo.bluesoxshop.com/uploads/1/3/1/4/131409090/c88c989.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3431/9776/files/73199236080.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9249/8850/files/88124042507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1814/8261/files/51947102904.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9579/3557/files/apc_back_ups_es_350_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4784/5021/files/causes_and_effects_of_the_great_depression.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/12050334973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1888/7073/files/16187359638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6823/5682/files/78795899425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8542/2997/files/vipulumibakatij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/7979/8679/files/los_ojos_verdes_gustavo_adolfo_becquer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4244/7253/files/53338807238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/saints_row_3_character_creation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0417/4233/files/xopoveve.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FA1 | 5504 bytes |
SHA-256: 060491135fe78fac2fc8d69dae27bcac765a2a2a234486d2671ded227cae501c |
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font_01_sfnt_off0000724a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x724A | 3204 bytes |
SHA-256: 3ec5eaebde275098412d8dff0e1045b52b4c0e5a23abac5807418a6329e69f43 |
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font_02_sfnt_off00007f3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F3A | 2320 bytes |
SHA-256: 026de1076dad6614fee7b4839f066e743e4238b5ddea94259138cfcd618330b4 |
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font_03_sfnt_off0000898c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x898C | 10180 bytes |
SHA-256: 154f3504563847afd5238de1ae16a6e4786f5b67c360e71557d935218309bce1 |
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font_04_sfnt_off0000ac19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC19 | 16224 bytes |
SHA-256: 7a7e0f9cb89785dee93ecfbcc78ef93b5a18a5022886c2d5a0bf15d9412c15a0 |
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