MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=make+document+size+smaller+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The presence of a visual download button lure further supports the malicious intent. The document body, though heavily obfuscated, contains the malicious URL and appears to be generated by wkhtmltopdf, suggesting a programmatic approach to creating the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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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
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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=make+document+size+smaller+pdf In PDF document text
- http://files.balwynhighschool1957to1962reunion.org/uploads/1/3/1/0/131070846/953bd02ef.pdfIn PDF document text
- http://files.bigbeantheory.com/uploads/1/3/0/8/130814515/kopaxebinobeziw_nitef_binokerilazi.pdfIn PDF document text
- http://files.riversofthekingdom.org/uploads/1/3/2/6/132682897/3e418959598ed4.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/1/0433/3712/1951/files/morfologi_rhizophora_apiculata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/how_to_change_minecraft_skin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4923/8178/files/60063089415.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8118/8003/files/zotulap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0644/3176/files/fejabuvogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4016/9374/files/52866764655.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/35606408230.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8558/6841/files/28113509219.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fasexerogetotano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/lifiwosupodagonuwaxexinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9959/4656/files/black_s_law_dictionary_9th.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2168/0283/files/75917536510.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3248/6823/files/bescherelle_grammaire_gratuit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3462/4668/files/pajogag.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61DE | 5420 bytes |
SHA-256: 24e6793a0f1292beedfb111b1feae7f34605b87297688fda93a46488c047cbeb |
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font_01_sfnt_off00007441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7441 | 10400 bytes |
SHA-256: 2d9d6d261298428334efc82d783a702c4280fc75b66b708b149ed470f006dc0c |
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