MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify, suggesting an attempt at SEO manipulation or driving traffic to malicious sites. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=iron+carbon+diagram+mcq+pdf'. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The file's purpose appears to be to redirect users to potentially harmful 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=iron+carbon+diagram+mcq+pdf In PDF document text
- http://files.acemgaming.com/uploads/1/3/0/9/130969045/roxej.pdfIn PDF document text
- http://files.blindsnscreenswhangarei.biz/uploads/1/3/1/3/131379732/f6eae4e603caab.pdfIn PDF document text
- http://files.isabeltamouro.com/uploads/1/3/1/1/131163953/baluruvi.pdfIn PDF document text
- http://rekuwes.nhconstructionlaw.com/uploads/1/3/2/7/132710592/97144d050fd0765.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/1/0439/0138/6920/files/50894454608.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8211/3433/files/nizutisoraxovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73470001672.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8096/5534/files/30547510987.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1808/3742/files/refobovumobaladofuxeneve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7511/6964/files/morurunamesoputes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9521/9623/files/sufidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2541/5843/files/garrys_hood_auto_clicker.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1382/4927/files/traveling_salesman_problem_c.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6741/6488/files/somibajegesulimubeso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2052/5476/files/57529794503.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3358/2998/files/zejujin.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC8 | 5060 bytes |
SHA-256: b117b484697b2d24185dbce52dd3f0860ff313c1f21d6eb6da8043bf57c0ca81 |
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font_01_sfnt_off000070bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70BF | 10372 bytes |
SHA-256: 60fd657a2741037100cd9a18bd979c5ce790bf3b8feae55114efe7fa398fea30 |
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font_02_sfnt_off000093ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93CA | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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