MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to external PDF files hosted on various domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.com/wb?keyword=clearing%20fractions%20and%20decimals%20worksheet', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting the intent is to drive traffic to malicious or controlled infrastructure.
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/wb?keyword=clearing%20fractions%20and%20decimals%20worksheet
- http://files.sandboxbookstore.com/uploads/1/3/1/8/131858916/fijubijala-naboxofibujotop.pdf
- http://xuvenoxib.standrewsweb.com/uploads/1/3/1/0/131070722/tiwepotojuze.pdf
- http://files.chipplondon.com/uploads/1/3/1/3/131379868/makolenomut_winefuta.pdf
- https://cdn.shopify.com/s/files/1/0438/2910/0701/files/lemedonurexekujaripemaret.pdf
- https://cdn.shopify.com/s/files/1/0431/8868/2915/files/69913162279.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/jorimebifuz.pdf
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/58878739178.pdf
- https://cdn.shopify.com/s/files/1/0437/9040/1687/files/39100924969.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdf
- https://cdn.shopify.com/s/files/1/0428/1306/3327/files/zejamudefifab.pdf
- https://cdn.shopify.com/s/files/1/0434/9945/4628/files/fedabezefobonelovokolubap.pdf
- https://cdn.shopify.com/s/files/1/0433/4298/7422/files/pelabagemab.pdf
- https://cdn.shopify.com/s/files/1/0436/1905/7826/files/51046092512.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_off00005e4e.bin9460f3f8712636e94a0824009ff7ed06e0779ec661828d27e76948689c82de35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E4E | 5496 bytes |
font_01_sfnt_off000070e9.bind7d460cec5d61cd9a4d73088e31e5a974779c928a1b508fbc51d94e461ff65f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70E9 | 10440 bytes |
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