MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/pify?keyword=working+principle+of+simple+carburetor+pdf'. The document body, though malformed, contains similar text, suggesting a lure to disguise the malicious link. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt, designed to drive traffic to malicious infrastructure.
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.me/pify?keyword=working+principle+of+simple+carburetor+pdf
- https://static.usrfiles.com/ugd/76156b_0fbe50fc12d94aa493e9a1bd788fd18c.pdf
- https://static.usrfiles.com/ugd/cac9e4_ad958491c5db49f0be02d3cdd2f7d1d0.pdf
- https://static.usrfiles.com/ugd/b8c837_2162611fe1b243b7a8ade55af71b7961.pdf
- https://static.usrfiles.com/ugd/0e2875_639f7f6626b243f3adcc256fdb5aea70.pdf
- https://cdn.shopify.com/s/files/1/0436/4078/3008/files/ibps_clerk_notification_2020_gradeup.pdf
- https://cdn.shopify.com/s/files/1/0432/4222/5831/files/word_cookies_answers_citron_17.pdf
- https://cdn.shopify.com/s/files/1/0429/5009/9100/files/animation_editing_apps_free.pdf
- https://cdn.shopify.com/s/files/1/0433/1231/6584/files/xoxulop.pdf
- https://cdn.shopify.com/s/files/1/0434/6331/1512/files/9941356801.pdf
- https://cdn.shopify.com/s/files/1/0437/9970/7805/files/catholic_church_history.pdf
- https://cdn.shopify.com/s/files/1/0432/6499/9590/files/65285070372.pdf
- https://cdn.shopify.com/s/files/1/0434/1537/1932/files/git_hub_commands.pdf
- https://cdn.shopify.com/s/files/1/0435/6443/3566/files/hep_b_treatment_guidelines_2018.pdf
- https://cdn.shopify.com/s/files/1/0429/6713/8460/files/nuclear_physics_powerpoint_templates.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_off000061d2.bin3e8c03b79a22361dc300bc8c13d19fb6d50f152df9841d83c44197ae5427f188 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61D2 | 5692 bytes |
font_01_sfnt_off0000752d.bin51cbcd1bec98a64ce10060656a3c9e15ce248d40730667c210c5374976fc6eed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x752D | 10352 bytes |
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