MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text suggesting it is a quiz, which is a common lure for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.
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=subject+verb+agreement+multiple+choice+quiz+pdf
- http://files.bertingelaere.net/uploads/1/3/1/6/131606619/4234185.pdf
- http://files.obacuisine.com/uploads/1/3/1/6/131636737/mowamejegumup.pdf
- http://files.thepollardgallery.com/uploads/1/3/1/3/131379615/bipepufuwatogig.pdf
- http://files.shenandoahpermaculture.com/uploads/1/3/1/6/131606060/8601585.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0439/7151/0430/files/35898823104.pdf
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/zexufowalelunitopapo.pdf
- https://cdn.shopify.com/s/files/1/0436/0772/0093/files/sidamam.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
- https://cdn.shopify.com/s/files/1/0428/0470/7491/files/jejemebugosesanu.pdf
- https://cdn.shopify.com/s/files/1/0427/7708/4070/files/gojinifaxarefizivuvi.pdf
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/89369776348.pdf
- https://cdn.shopify.com/s/files/1/0430/0436/2906/files/jekibexolusi.pdf
- https://cdn.shopify.com/s/files/1/0431/0230/6468/files/dagijikazubago.pdf
- https://cdn.shopify.com/s/files/1/0430/6285/3794/files/jozijikoregukufoted.pdf
- https://cdn.shopify.com/s/files/1/0430/8742/9785/files/12378004308.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_off00004c7b.bin81aa3dc58362616fa7f1709a0bacf493c4ea7ba58be82faa78cb1172ef22287f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C7B | 5944 bytes |
font_01_sfnt_off0000609f.bin1379c649b252984dcb21bfc01053331cd29cd204845331b718bac9fde0452b4a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x609F | 10440 bytes |
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