MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious URL, disguised with keywords related to a chemistry textbook. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or SEO poisoning tactic. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive document.
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/wix?keyword=chemistry+7th+edition+mcmurry
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/4656/8098/files/nipimowawetezumegux.pdf
- https://cdn.shopify.com/s/files/1/0438/0455/7469/files/48917242276.pdf
- https://cdn.shopify.com/s/files/1/0457/4599/5932/files/certificate_of_proficiency_in_english_2.pdf
- https://cdn.shopify.com/s/files/1/0429/6035/5487/files/tetra_pak_aseptic_packaging.pdf
- https://static.usrfiles.com/ugd/565485_10fee8fbf364414c9a730466a28b1bcd.pdf
- https://static.usrfiles.com/ugd/b8c837_d29c27e147c94f83a57bab91cceceba3.pdf
- https://static.usrfiles.com/ugd/eb5a6a_2355483268f24a6784b30b35e76a97b8.pdf
- https://static.usrfiles.com/ugd/c4ccc4_aab35e0cdc0f4ec996b7de9b6a7c9cda.pdf
- https://static.usrfiles.com/ugd/b8c837_cd66ccfa2f12473cb82d7843285f405b.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/sword_coast_adventurer_s_guide_backgrounds.pdf
- https://cdn.shopify.com/s/files/1/0431/9005/9176/files/bamokibenix.pdf
- https://cdn.shopify.com/s/files/1/0433/4351/1703/files/b._e_mechanical_engineering_syllabus.pdf
- https://cdn.shopify.com/s/files/1/0430/4565/0586/files/the_bedford_reader_11th_edition.pdf
- https://cdn.shopify.com/s/files/1/0429/1916/6119/files/9216305282.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_off0000838e.bin87949262db5d8a73f37eafc483745d9ce4bbdb0329885e4f9ae27cfe8cd57803 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x838E | 5024 bytes |
font_01_sfnt_off0000948a.bin7174740c45169af53841885992e4fcbc09d5e75547acaa88acf36ea79973f8c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x948A | 10860 bytes |
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