MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=dividing+fractions+worksheet+6th+grade+with+answers'. This URL is presented within the document body, disguised as a link to a 'dividing fractions worksheet'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs. The ML classifier strongly flagged this PDF as malicious.
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.ru/pify?keyword=dividing+fractions+worksheet+6th+grade+with+answers
- https://static.usrfiles.com/ugd/34e21e_7657a92ece9e4f5e82ca98208ef10d2f.pdf
- https://static.usrfiles.com/ugd/0bcf16_2e5cb602a9e748d2b295962da91a7593.pdf
- https://static.usrfiles.com/ugd/b8c837_053808e8de0a4b62b6f65f7f8946bbac.pdf
- https://static.usrfiles.com/ugd/0cd3a8_fcfd0e6b5afb47339d7d2a9bd7b6440f.pdf
- https://cdn.shopify.com/s/files/1/0431/6371/3695/files/mozozakibarikak.pdf
- https://cdn.shopify.com/s/files/1/0430/5253/1869/files/kidevuvunanidubo.pdf
- https://cdn.shopify.com/s/files/1/0432/1656/8482/files/76483591463.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/nixuwozikef.pdf
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/fafutuzibojelibi.pdf
- https://cdn.shopify.com/s/files/1/0438/6213/0853/files/game_of_thrones_show_bible.pdf
- https://cdn.shopify.com/s/files/1/0437/0844/8919/files/rimazu.pdf
- https://cdn.shopify.com/s/files/1/0433/1339/7924/files/18027290233.pdf
- https://cdn.shopify.com/s/files/1/0429/3040/5535/files/33931747329.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/
- https://static.usrfiles.com/ugd/34e21e_7657a92ece9e4f5e82ca98208ef10d2f.p
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000798e.binabd301784fd2032a258d12dbdf9e71da4aa71a1a4f5dac20964217c7476365d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x798E | 5620 bytes |
font_01_sfnt_off00008ccc.bina12751507e5b769c01d1caffbb6212f7abec98fd49f769df25355edbbc434ee4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CCC | 9980 bytes |
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