MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as revision notes, which leads to a link farm. The ML classifier strongly indicated maliciousness, and the presence of numerous embedded URLs points to a phishing or redirection scheme. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/wb?keyword=a%20level%20physics%20revision%20notes%20pdf In PDF document text
- http://files.byrdhouseandladybugs.com/uploads/1/3/0/7/130740342/notasemiwovevo.pdfIn PDF document text
- http://files.naturallymusicalstudio.com/uploads/1/3/1/6/131637037/d047378c8.pdfIn PDF document text
- http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.pdfIn PDF document text
- http://files.ourfrenchimpressions.com/uploads/1/3/0/7/130739037/5b906a2348.pdfIn PDF document text
- http://files.primrosetable.com/uploads/1/3/1/3/131381471/923578.pdfIn PDF document text
- http://files.darajamusicinitiative.org/uploads/1/3/2/7/132710683/gizuvuxab_galipo.pdfIn PDF document text
- http://files.outoftheboxphotography.net/uploads/1/3/1/4/131438468/1338414.pdfIn PDF document text
- http://files.savefarthingworthgreen.org/uploads/1/3/1/0/131071056/637333bab2f0.pdfIn PDF document text
- http://files.wavesofwords.org/uploads/1/3/1/4/131453651/fowidowegu.pdfIn PDF document text
- http://files.conjunctionmedia.com/uploads/1/3/1/4/131437983/jumeferavesij.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://mafegazavete460328079.files.wordpress.com/2020/06/wasoxajitofomifij.pdfIn PDF document text
- https://migeleki.files.wordpress.com/2020/07/99759774539.pdfIn PDF document text
- https://xilawirusit.files.wordpress.com/2020/06/penor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7913659608.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/wilifo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7144/6939/files/degivebisodinew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1868/9432/files/48689481943.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4570/7166/files/kurebugakewigiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3714/7811/files/zuvezatiwewesukorulafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6702/3259/files/veperadasomeragik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8869/9802/files/sokofifitinuv.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006815.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6815 | 4972 bytes |
SHA-256: 3bf7c45829a94229122ae0a7977fcfc26380d02b67fc95d35220f25ae9691493 |
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font_01_sfnt_off000078fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78FB | 9712 bytes |
SHA-256: 6b535b50e4dc50eb77dab706435d539862d534e3e793de95ba9253224ce4fcb2 |
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