MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector finding. The presence of a large number of external PDF links, many pointing to `cdn.shopify.com` and `static.usrfiles.com`, suggests a link farm intended to obscure the ultimate destination or to distribute multiple malicious payloads.
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/wix?keyword=beatles+songbook+the+rubber+band
- https://static.usrfiles.com/ugd/b8c837_0057b85df70f4b5a9ed53a324d77fedd.pdf
- https://static.usrfiles.com/ugd/b8bbd7_54ec75a6bb3d4686ac27cbd691cb6885.pdf
- https://static.usrfiles.com/ugd/87d215_1512a74f713c4ab89879fecadcef197d.pdf
- https://static.usrfiles.com/ugd/b8c837_060f67faf6074162b371c8e9907f299d.pdf
- https://cdn.shopify.com/s/files/1/0430/0183/9775/files/50453786678.pdf
- https://cdn.shopify.com/s/files/1/0434/1379/9066/files/mean_deviation_for_grouped_data.pdf
- https://cdn.shopify.com/s/files/1/0431/5709/4559/files/og_word_family_worksheets_for_kinder.pdf
- https://cdn.shopify.com/s/files/1/0434/9581/7382/files/kuxofiwafiwefoz.pdf
- https://cdn.shopify.com/s/files/1/0447/7979/8679/files/euclidean_algorithm_in_cryptography.pdf
- https://cdn.shopify.com/s/files/1/0432/3747/4466/files/l_algorithme_informatique_cours.pdf
- https://cdn.shopify.com/s/files/1/0432/3780/2146/files/61528004182.pdf
- https://cdn.shopify.com/s/files/1/0429/9381/1619/files/ezviz_cs_cv310.pdf
- https://cdn.shopify.com/s/files/1/0428/1673/3340/files/kuwugonune.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_off00006393.bin9febbf49b598c7bf2f0d50f082395a3978d17489defe3b60ca2e2ff676773ea0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6393 | 5340 bytes |
font_01_sfnt_off000075af.bin47ed78b125815eda408ceffdb76688022fa93c3c725f48bc0c16f2640fa1c0a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75AF | 10476 bytes |
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