MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'ttraff.com'. This redirector is used to lure victims with a fake 'Udacity data engineer nanodegree free' offer, likely leading to a phishing or malware download site. The presence of a large number of external PDF links suggests a link farm or SEO manipulation tactic.
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.com/pify?keyword=udacity+data+engineer+nanodegree+free
- http://files.artists-cove.com/uploads/1/3/1/4/131438611/faf4c.pdf
- http://vidakobob.guiltfreeclothing.com/uploads/1/3/1/8/131857054/zidabaganu-rigelonuza.pdf
- http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/7016/0032/files/fobom.pdf
- https://cdn.shopify.com/s/files/1/0431/5083/5876/files/10638567422.pdf
- https://cdn.shopify.com/s/files/1/0438/0593/3730/files/riteruxosulibokukaze.pdf
- https://cdn.shopify.com/s/files/1/0431/6138/7170/files/24524662360.pdf
- https://cdn.shopify.com/s/files/1/0433/4298/7422/files/63235197594.pdf
- https://cdn.shopify.com/s/files/1/0432/6273/8592/files/agriculture_in_israel.pdf
- https://cdn.shopify.com/s/files/1/0432/4196/3679/files/56102676262.pdf
- https://cdn.shopify.com/s/files/1/0438/0036/3169/files/functional_skills_maths_level_2_past_papers_city_guilds.pdf
- https://cdn.shopify.com/s/files/1/0440/8773/8533/files/squaring_in_python.pdf
- https://cdn.shopify.com/s/files/1/0436/8911/5801/files/nuwomibutiwitapeta.pdf
- https://cdn.shopify.com/s/files/1/0431/7229/8918/files/program_semester_biologi_sma_kelas_xi_kurikulum_2020.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_off00005f0c.bin0da5eafc0c416fb67abb868e611d0a17629a499089b39a8692da2a7a40abca24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F0C | 5072 bytes |
font_01_sfnt_off00007062.bin0bf5baca58c78143fb2c6852e0c6c07751dd50c4d9293b56cc82c7bc4879fb4b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7062 | 10304 bytes |
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