MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious due to a high ML score and the presence of numerous external links. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. Another critical heuristic indicates a link farm, with many links pointing to PDFs hosted on Shopify, suggesting an attempt to create a large number of seemingly legitimate but ultimately malicious download points. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=cytology+mcq+pdf, reinforcing the malicious redirector finding.
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.cc/pify?keyword=cytology+mcq+pdf
- http://files.equineassistedtherapyofnj.org/uploads/1/3/1/0/131070379/vafikugumegofoxevid.pdf
- http://pasepis.nicolejonescommercial.com/uploads/1/3/1/6/131607013/5533286.pdf
- http://files.lawtonacademyrobotics.com/uploads/1/3/0/7/130738912/datodinisasar.pdf
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/tilekixozetoxitaf.pdf
- https://cdn.shopify.com/s/files/1/0432/5978/9472/files/sanovim.pdf
- https://cdn.shopify.com/s/files/1/0432/2784/0669/files/98006799231.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/98989571223.pdf
- https://cdn.shopify.com/s/files/1/0434/6734/1981/files/75304439416.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/64651630376.pdf
- https://cdn.shopify.com/s/files/1/0431/2642/3708/files/livro_epidemiologia_basica_bonita.pdf
- https://cdn.shopify.com/s/files/1/0431/7511/6960/files/9500007424.pdf
- https://cdn.shopify.com/s/files/1/0435/8258/7039/files/fawikinojiva.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/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000671c.binb17266343056e37ce123ed5c9d1062080ee3650eceb0ba424128feb6dd9d5c0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x671C | 4760 bytes |
font_01_sfnt_off00007765.binc3433b55a99121455a2bb0a71aaf54e96b7981397f67f261ee860d0a58da9d02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7765 | 10864 bytes |
font_02_sfnt_off00009c45.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C45 | 4324 bytes |
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