MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=chemistry+review+book+answer+key'. This URL is presented within the document body, disguised as a 'chemistry review book answer key'. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains. The primary intent appears to be directing users to malicious infrastructure via a deceptive lure.
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=chemistry+review+book+answer+key
- http://mujimil.oldepearprimitives.com/uploads/1/3/0/8/130814674/5930343.pdf
- http://files.xmelox.com/uploads/1/3/2/6/132683088/totabu.pdf
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/79341701132.pdf
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/website_design_documentation.pdf
- https://cdn.shopify.com/s/files/1/0431/1498/7674/files/81958494445.pdf
- https://cdn.shopify.com/s/files/1/0431/8691/3437/files/exclamation_mark_on_photos_android.pdf
- https://cdn.shopify.com/s/files/1/0438/1769/7437/files/charamsukh_episode_6_free.pdf
- https://cdn.shopify.com/s/files/1/0430/5915/1009/files/92916867081.pdf
- https://cdn.shopify.com/s/files/1/0437/8587/9713/files/joverima.pdf
- https://cdn.shopify.com/s/files/1/0432/9639/1323/files/zewodanozabividudagimaj.pdf
- https://cdn.shopify.com/s/files/1/0434/7900/7398/files/29943414750.pdf
- https://cdn.shopify.com/s/files/1/0453/6372/4443/files/30632625476.pdf
- https://cdn.shopify.com/s/files/1/0434/2117/1879/files/dudetefodani.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_off000067ff.bin39c50339c6918b9bf28697fea1fd8c2cb7c275ee1ed1feede19d6a7dc4dd0c0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67FF | 5256 bytes |
font_01_sfnt_off000079c9.bin25365d1639adecf3384c0b1c926458e97b86b7bba34bc407bce822a2be7ad366 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79C9 | 10648 bytes |
font_02_sfnt_off00009e46.bin2a5f1667c2e343500efde63e3dd6a136498333968b1680966ac5eb34589f1174 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E46 | 16144 bytes |
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