MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a known malicious domain, ttraff.ru. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a registration form. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning attempt to increase visibility of the malicious redirector.
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=du+b.+ed+registration+form+2019 In PDF document text
- http://milefux.andavis.co.uk/uploads/1/3/1/6/131606479/baluvamiregevov.pdfIn PDF document text
- http://files.winnipegcrimestoppers.org/uploads/1/3/0/7/130775652/1237594.pdfIn PDF document text
- http://burobo.saramelodyart.com/uploads/1/3/2/3/132302815/penaridok.pdfIn PDF document text
- http://files.brave458.com/uploads/1/3/0/7/130740530/1a547351fac9.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/1/0431/9353/2573/files/kigogevojupebakigarat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5264/6050/files/mefodalowaxitoninot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0826/1285/files/boxivetewaxuzegereve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1234/1409/files/11266498127.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/92981417653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5866/7415/files/king_of_the_ring_1994.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5171/8558/files/zifolunubotisoloj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1637/9816/files/sipenofidesavanikojajaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9807/1450/files/pokemon_showdown_teams_ou.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/fikowudemibezepisigofage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8497/0139/files/73826481092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1993/5655/files/81189512382.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7921/8840/files/29190499876.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_off00006514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6514 | 5848 bytes |
SHA-256: 45b3a85d1e1efa985e9cad5330dfdd3fed6a220bba7bc47de7918ac6a13eb3f0 |
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font_01_sfnt_off000078e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78E4 | 10480 bytes |
SHA-256: 20d99c0c3700d459ffd4bf1183fd2accce3c0e034e4cdf14cca3ebd0a96473ad |
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