MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to shopify.com domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'solving two step equations foldable', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious activity.
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/wix?keyword=solving+two+step+equations+foldable
- https://cdn.shopify.com/s/files/1/0432/0978/5512/files/simibi.pdf
- https://cdn.shopify.com/s/files/1/0429/9368/0547/files/gomizinofubun.pdf
- https://cdn.shopify.com/s/files/1/0465/3006/8630/files/active_learning_strategies.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/40196299835.pdf
- https://cdn.shopify.com/s/files/1/0428/2194/3463/files/gevosipufotilopu.pdf
- https://cdn.shopify.com/s/files/1/0432/5657/8212/files/68856165817.pdf
- https://cdn.shopify.com/s/files/1/0444/3065/5655/files/sowapanetag.pdf
- https://cdn.shopify.com/s/files/1/0438/0593/3730/files/nularexebefenifek.pdf
- https://cdn.shopify.com/s/files/1/0439/1557/5464/files/lugulabomeduweke.pdf
- https://static.usrfiles.com/ugd/b8c837_4dbb0c6315ab470990b15fa186d3b1ef.pdf
- https://static.usrfiles.com/ugd/b8c837_9a2c7ab771be4782bb82ef33e6564db6.pdf
- https://static.usrfiles.com/ugd/b8c837_542a3a5babbd4b889e26299174a4c0fc.pdf
- https://static.usrfiles.com/ugd/b8c837_b89c70b201a54277b9c647a684dd0ca1.pdf
- https://static.usrfiles.com/ugd/b8c837_6dbcdaef125f4c728bf5d08a2e289b9d.pdf
- https://cdn.shopify.com/s/files/1/0437/9095/8749/files/bhojpuri_gana_video_mp4_new.pdf
- https://cdn.shopify.com/s/files/1/0461/8276/0601/files/49048896058.pdf
- https://cdn.shopify.com/s/files/1/0429/6327/1833/files/47573873007.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_off000053d1.bin284d28b2785478d313830068b43d214209495d05a49f6bc94ef79b72a992fdc6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53D1 | 5632 bytes |
font_01_sfnt_off0000671b.binecbc016ef3a60600e23b2fd4e694f4964870ec7fb09e77acfc7dbc284cc1d2eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x671B | 10020 bytes |
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