MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. The document body, though partially corrupted, suggests a lure related to downloading a specific textbook, which is then linked to the malicious redirector. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm SEO tactic to attract victims. No scripts were extracted, but the PDF structure and embedded links strongly suggest 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.cc/pify?keyword=a+first+course+in+abstract+algebra+fraleigh+pdf+download
- http://files.rightresolutioncic.org/uploads/1/3/1/0/131070849/gukajizujan-wipibuwaxineni-dudejixo-telapikefufer.pdf
- http://files.tieddownadventurers.com/uploads/1/3/1/4/131438759/24bfa0e8e9a9522.pdf
- http://files.yungschinese.com/uploads/1/3/2/6/132682134/sufakamoju.pdf
- http://files.hollywoodfashionmerchandise.com/uploads/1/3/0/7/130738596/dozezifid.pdf
- http://files.danielspiro.com/uploads/1/3/1/3/131397971/7739990.pdf
- https://cdn.shopify.com/s/files/1/0437/3463/0554/files/ranologapotovidufinesil.pdf
- https://cdn.shopify.com/s/files/1/0434/0459/1254/files/bagewevoxe.pdf
- https://cdn.shopify.com/s/files/1/0430/9234/4999/files/16571644587.pdf
- https://cdn.shopify.com/s/files/1/0433/1683/8558/files/59934602124.pdf
- https://cdn.shopify.com/s/files/1/0427/8488/2844/files/gasuvamekarataratogi.pdf
- https://cdn.shopify.com/s/files/1/0448/1361/5264/files/the_liberty_bell_march.pdf
- https://cdn.shopify.com/s/files/1/0428/1283/3959/files/modijusokibil.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000053ef.bin65fe2b40ca392afda1fd8fe2fd77b089d9d323397eb220bc33cbfa14a9e5c3ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53EF | 5640 bytes |
font_01_sfnt_off00006711.binb7dd8f838db84f0d02abc6812920481a7d59f913929535522443ae3384313a0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6711 | 10528 bytes |
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