MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and contains a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=acr+bi+rads+atlas+pdf, which is also listed as a malicious redirector. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify, suggesting an attempt to distribute traffic to various destinations.
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=acr+bi+rads+atlas+pdf
- http://files.karlasthoughts.net/uploads/1/3/0/7/130739780/mimuxigajovupal.pdf
- http://luvetuk.monicaburtonyoga.com/uploads/1/3/1/4/131409090/479252.pdf
- http://files.hollyberrycatering.com/uploads/1/3/2/8/132814611/5681968.pdf
- https://cdn.shopify.com/s/files/1/0430/1111/3123/files/epson_stylus_photo_1400_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/negopolikutowuz.pdf
- https://cdn.shopify.com/s/files/1/0433/2371/9845/files/xodagamofapigakolowol.pdf
- https://cdn.shopify.com/s/files/1/0435/7105/2703/files/76061244020.pdf
- https://cdn.shopify.com/s/files/1/0427/6381/3020/files/20300584608.pdf
- https://cdn.shopify.com/s/files/1/0431/4277/4935/files/89768126139.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdf
- https://cdn.shopify.com/s/files/1/0429/4639/6326/files/78805733238.pdf
- https://cdn.shopify.com/s/files/1/0432/6742/4412/files/nursing_care_plan_for_depression.pdf
- https://cdn.shopify.com/s/files/1/0427/8861/8396/files/33572836881.pdf
- https://cdn.shopify.com/s/files/1/0431/7564/1247/files/18249945730.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_off00007c3a.bine4f0d8c9ae71f04ba3a43815bb618b4e993f74dc38ffa73df57248b2a608e8c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C3A | 5276 bytes |
font_01_sfnt_off00008e3a.binae101a4c09b9879e80105861f0d5b10d09aee27fb009c1aaa2739b821c472e10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E3A | 10260 bytes |
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