MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a worksheet download. The document body, though heavily obfuscated, contains this URL and appears to be a lure for users to click on it. The presence of a large number of external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute the malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/wix?keyword=human+anatomy+and+physiology+printable+worksheets
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/9095/8752/files/mofodaze.pdf
- https://cdn.shopify.com/s/files/1/0429/2280/3366/files/72926913178.pdf
- https://cdn.shopify.com/s/files/1/0437/6874/2046/files/huawei_p20_pro_android_9_update_erzwingen.pdf
- https://static.usrfiles.com/ugd/b8c837_0112edbed89145b9be46dabcb3dd0050.pdf
- https://static.usrfiles.com/ugd/b8c837_6671b1757c4f4f7fbbbbcd7c8b6db5f2.pdf
- https://static.usrfiles.com/ugd/c7a620_cb9e4010c312472d994aedca46a876f5.pdf
- https://static.usrfiles.com/ugd/cc14e4_d2d232e9197e4b4e9ed21d0adae73e7a.pdf
- https://cdn.shopify.com/s/files/1/0431/8982/9800/files/24642678174.pdf
- https://cdn.shopify.com/s/files/1/0432/5461/2123/files/81476098254.pdf
- https://static.usrfiles.com/ugd/353d00_4e94e8a6cecd422196217e25464a48df.pdf
- https://static.usrfiles.com/ugd/ade4e6_5fe30482203e40cca0a034d2f9f223fc.pdf
- https://static.usrfiles.com/ugd/f55bec_25f652a16b6446f8a29b9988d995bb70.pdf
- https://static.usrfiles.com/ugd/b8c837_24f7d0fef4b5417e9c7205c9f62d74ad.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008143.binfa6767877b05a47af78dc325a3de2ca407c745976ad86bb3f4531716f03a9df3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8143 | 5732 bytes |
font_01_sfnt_off000094a6.bin094e3f238388f00c88525af01bc78f0198b20a16985df2511d3405d57c7d1b2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94A6 | 10560 bytes |
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