MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body also contains a lure instructing the user to copy/paste clipboard content, suggesting an attempt to trick the user into executing commands. The ML classifier strongly indicates maliciousness, and the overall structure points to a downloader or phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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.cc/pify?keyword=beginning+with+code_aster+pdf In PDF document text
- http://files.nycsigmakappa.com/uploads/1/3/1/4/131453499/fb96883ee0.pdfIn PDF document text
- http://files.sylverspoon.com/uploads/1/3/1/8/131856949/mamob_wuvamiroza_feluv.pdfIn PDF document text
- http://files.pontotoccarsales.com/uploads/1/3/0/7/130776167/6853925.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/jiwosejusinagasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3513/1046/files/84130420793.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6802/3194/files/6946703157.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7865/5903/files/same_meaning_words_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9489/9864/files/10405458754.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1698/5508/files/cctv_camera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nanejixiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8787/1646/files/mafotojumexebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6126/5062/files/74844381920.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7785/1550/files/fundamentals_of_modern_manufacturing_5th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8093/1742/files/91912472408.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1764/9819/files/26463956132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7997/5591/files/renci_sshnet_example.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006548.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6548 | 5556 bytes |
SHA-256: 2e1a5988113afed1c193eaa02fce19f96dd06c92ef95b0afbb8025b6cf1d7e39 |
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font_01_sfnt_off0000784c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x784C | 10392 bytes |
SHA-256: e55bacdab28975c1265317a200790db36b057d1a944b2c1f6552c16684b34269 |
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