MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, disguised with a search query about reducing PDF size. It also hosts a large number of external PDF links, many of which are hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/wb?keyword=how%20to%20reduce%20pdf%20size%20adobe%20reader%20xi
- http://files.vallenduuk.pl/uploads/1/3/1/8/131872048/munaxatop.pdf
- http://ruzada.btmuth.org/uploads/1/3/1/8/131856476/fubud.pdf
- http://files.way2heal.com/uploads/1/3/0/7/130739590/5708908.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/0158/5570/files/jusiwixo.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/4130922211.pdf
- https://cdn.shopify.com/s/files/1/0429/4282/4611/files/3372400322.pdf
- https://cdn.shopify.com/s/files/1/0438/7130/5896/files/92359096705.pdf
- https://cdn.shopify.com/s/files/1/0431/1567/5809/files/91579642351.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuvuwagel.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/pavakixopiwikiruson.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6835/files/89118948071.pdf
- https://cdn.shopify.com/s/files/1/0431/4716/5850/files/nenuwat.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gojifazuxosupimuron.pdf
- https://cdn.shopify.com/s/files/1/0433/5416/1310/files/35614319455.pdf
- https://cdn.shopify.com/s/files/1/0434/3939/0872/files/adobe_indesign_trial.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005030.bin15ef6fda0ce6fe3d88736a6748a531f33c906f7c5685b526f89efa64707f489d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5030 | 5428 bytes |
font_01_sfnt_off000062ce.bina3531008efa1445d2c034961e8814652dfe9e1f18cd151ee0a7ae6199b7797af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62CE | 9784 bytes |
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