MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to a known malicious domain, likely intended to trick the user into visiting a malicious site. The document body, though heavily obfuscated, contains text related to a physics lab report and includes the malicious URL. The presence of numerous external PDF links, many pointing to Shopify and static.usrfiles.com, suggests a link farm or SEO poisoning tactic to disguise the malicious redirector.
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=hooke%2527+s+law+physics+lab+report
- https://cdn.shopify.com/s/files/1/0465/1512/6422/files/zefoganebe.pdf
- https://cdn.shopify.com/s/files/1/0440/2230/0822/files/96768403371.pdf
- https://cdn.shopify.com/s/files/1/0430/1658/5379/files/26532529821.pdf
- https://cdn.shopify.com/s/files/1/0454/3060/3932/files/92439249304.pdf
- https://cdn.shopify.com/s/files/1/0430/2651/4077/files/mastering_autodesk_inventor_2015.pdf
- https://static.usrfiles.com/ugd/b8c837_808f5e4e469544c9a9b318165073737b.pdf
- https://static.usrfiles.com/ugd/b8c837_33b5473b48854912a814f3597e7a1539.pdf
- https://static.usrfiles.com/ugd/5b9a87_2625eb0834ca45ad8f1985dd9fccd816.pdf
- https://static.usrfiles.com/ugd/277b62_7897d25603ed4617814f3e432fb5c664.pdf
- https://static.usrfiles.com/ugd/b8c837_945b6f7220ff415db9fb288c663fedef.pdf
- https://static.usrfiles.com/ugd/d5415a_c612c41c1de74fdca31fc0ff6115f1d5.pdf
- https://static.usrfiles.com/ugd/b8c837_2c34b226dfc8471f97b5ecd5984c7e33.pdf
- https://static.usrfiles.com/ugd/856cea_d73b1dff514b485cb9705f0b8396ed49.pdf
- https://static.usrfiles.com/ugd/a48928_9749e13e13b84d28a70d3e274f388496.pdf
- https://static.usrfiles.com/ugd/b8c837_255247082a2043cfad4a63756a91029a.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_off00005fdf.bin631582079e14131f39699d28335b461962b4fed03d3a30e7f97fdd88f8e7920b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FDF | 5416 bytes |
font_01_sfnt_off0000725a.bin99da63ecdd6529e7712d34c8987f4fb12bcdbd3075338878ce1a6b4290311d99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x725A | 11096 bytes |
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