MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to lure users into clicking on what appears to be a calligraphy workbook. The primary link, 'https://ttraff.ru/pify?keyword=copperplate+calligraphy+workbook+pdf', redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also 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=copperplate+calligraphy+workbook+pdf
- http://files.unfilteredperspectives.com/uploads/1/3/1/8/131856498/mijirakik-vebudojedo.pdf
- http://files.thebeamtravel.com/uploads/1/3/1/4/131454012/3152886.pdf
- http://files.followingcortney.com/uploads/1/3/1/4/131437299/gipet.pdf
- http://kowifo.beachfronthl.com/uploads/1/3/1/0/131070718/73025a7d5.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/vijunax.pdf
- https://cdn.shopify.com/s/files/1/0429/4646/1852/files/suvitogoka.pdf
- https://cdn.shopify.com/s/files/1/0433/4731/2789/files/zemojopuzumukusitotabu.pdf
- https://cdn.shopify.com/s/files/1/0434/6055/9013/files/adobe_reader_for_android_download.pdf
- https://cdn.shopify.com/s/files/1/0430/1471/7597/files/dipikasawinitipuza.pdf
- https://cdn.shopify.com/s/files/1/0432/0880/2466/files/10720843795.pdf
- https://cdn.shopify.com/s/files/1/0431/0971/2021/files/zogexupigibeginut.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lawup.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97503793953.pdf
- https://cdn.shopify.com/s/files/1/0433/7300/2906/files/fomipexozisuzuzokazanuxev.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.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_off00004fd5.bin388e5901c032bf0ed4a31507e2b46ba55883f31b0b69d9d810af35b0ed1ff40f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FD5 | 5544 bytes |
font_01_sfnt_off000062b8.binbe7ec27f901091b40f2d392cf47b4cbc308976c567c7d1e12b05e9e18984cbce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62B8 | 10712 bytes |
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