MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.club, which is presented as a 'heat capacity worksheet with answers'. This suggests a social engineering lure to direct users to malicious infrastructure. The PDF also contains a large number of embedded links, many pointing to Shopify, forming a link farm, likely to improve SEO for malicious content or to obscure the final destination. No scripts were extracted, but the presence of the malicious redirector and the lure indicate a phishing or malware distribution attempt.
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.club/wix?keyword=heat+capacity+worksheet+with+answers
- https://cdn.shopify.com/s/files/1/0432/6244/3683/files/tenovagu.pdf
- https://cdn.shopify.com/s/files/1/0430/2356/4957/files/lepaboson.pdf
- https://cdn.shopify.com/s/files/1/0434/5489/0149/files/bubotufibabixurowenamok.pdf
- https://cdn.shopify.com/s/files/1/0427/5296/6812/files/26003694968.pdf
- https://cdn.shopify.com/s/files/1/0432/6385/2712/files/xipeloxebaxata.pdf
- https://cdn.shopify.com/s/files/1/0431/1344/7577/files/20023628727.pdf
- https://cdn.shopify.com/s/files/1/0438/4056/9509/files/boot_camp_st_albans.pdf
- https://cdn.shopify.com/s/files/1/0435/6849/6798/files/tiwinulap.pdf
- https://cdn.shopify.com/s/files/1/0430/4276/7001/files/99290041646.pdf
- https://cdn.shopify.com/s/files/1/0434/0459/1255/files/88761793143.pdf
- https://d75a48b3-2409-4d88-a2a9-8d5734a55870.filesusr.com/ugd/e1c37d_18a23d13b3a9455580135921f2e79746.pdf?index=true
- https://03308ed6-0cda-469e-8320-7c01fc1e123a.filesusr.com/ugd/8e6e76_11e7737fe46b4f37ac22684bde0f5288.pdf?index=true
- 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_off0000658a.bin15e5452950cf203bbd989826603ceac9e6c0730c8f60d412d3ce2bfad7629c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x658A | 4996 bytes |
font_01_sfnt_off0000767d.bind7a94447d82424643e4fff009a97e1c4a33d8053fd09ac004301ed63a335d26c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x767D | 10412 bytes |
font_02_sfnt_off00009a22.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A22 | 4324 bytes |
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