MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a mass external link farm, with many links pointing to Shopify domains, but one critical link to 'ttraff.ru' is flagged as malicious. The document body, though heavily obfuscated, contains text referencing 'Accounting 101 book pdf' and includes the malicious URL, suggesting a lure to a malicious site. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document might also instruct users to install remote support tools, further increasing the risk.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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/pify?keyword=accounting+101+book+pdf In PDF document text
- http://files.glenislaagainstturbines.com/uploads/1/3/1/6/131607827/ripulafovapi-pamosobavaduw-tizenexosebev-saduj.pdfIn PDF document text
- http://files.lorainedavies.com/uploads/1/3/0/7/130740242/bofoxeruxurab_xutadedetewiga_latibuzu_lanig.pdfIn PDF document text
- http://ninagaxe.beyondglamstore.com/uploads/1/3/1/3/131383544/31017a.pdfIn PDF document text
- http://files.neckiesbymj.com/uploads/1/3/1/6/131606345/5454481.pdfIn PDF document text
- http://files.ohoandassociates.org/uploads/1/3/1/8/131871745/929646f211ef.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/1/0433/1254/5950/files/bevirojafibosekosexabovap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/nazitelav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7279/6310/files/64145248794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4542/7102/files/tusavivonelefojipidivu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9870/9918/files/kuruzebutuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8414/4037/files/great_is_thy_faithfulness_chords_c.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2261/3655/files/36781646201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8632/2600/files/xakezozidugober.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8583/1070/files/51906183871.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/2723/9836/files/teamviewer_14_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0942/6079/files/56204455122.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9917/6612/files/85469788532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5311/files/98623232446.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_off0000884e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x884E | 5192 bytes |
SHA-256: 1afc89ca8a49c17ba712bab062b0f369587164aab2f86a4194f4ab0b21616032 |
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font_01_sfnt_off00009a20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A20 | 10724 bytes |
SHA-256: c634286519bd07234c889f8ca9dc015a4d7193e70ff4570000a8184cb5624cc5 |
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