MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.ru/pify?keyword=castrol+edge+5w30+c3+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly indicated maliciousness.
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=castrol+edge+5w30+c3+pdf In PDF document text
- http://files.wakinikonaclub.com/uploads/1/3/2/6/132680796/9583921.pdfIn PDF document text
- http://files.level2rak.com/uploads/1/3/0/9/130969768/6346045.pdfIn PDF document text
- http://files.customuv.com/uploads/1/3/2/6/132695629/zolinogidusal.pdfIn PDF document text
- http://files.melwycked.com/uploads/1/3/1/3/131379706/d95810b97222149.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/1/0429/8709/4179/files/palawarizi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2885/6477/files/68618659634.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6434/5255/files/nunisaluvebiturumafuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2696/4903/files/short_man_complex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6486/6469/files/14207677804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0995/0367/files/2346271061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6963/5746/files/mononomeruzonigosejure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8348/0736/files/sevibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1479/1069/files/kowufij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/6986/9975/files/murach_s_sql_server_2016_for_developers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8125/3535/files/46799525397.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9200/0406/files/21757700910.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/kinokesejulebunaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2317/9677/files/oxidative_stress.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_off000050f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50F2 | 5752 bytes |
SHA-256: 2f76a9331f3fc7773f4206af7209b58fe258809c6ec855f6d9e1e20568930680 |
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font_01_sfnt_off000064a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64A9 | 14352 bytes |
SHA-256: 2079ae33ccfaa602b8799eba82da94a4b7d077eb97deda68cde135d69fdd252f |
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font_02_sfnt_off00009310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9310 | 16144 bytes |
SHA-256: 2a5f1667c2e343500efde63e3dd6a136498333968b1680966ac5eb34589f1174 |
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