MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure using a 'cover letter sample' to encourage clicks on these links. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector URL supports a phishing or scam attack pattern.
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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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.ru/pify?keyword=cover+letter+sample+for+resume+pdf In PDF document text
- http://besukera.stellaheducationcenter.org/uploads/1/3/2/3/132302872/jesosunemas.pdfIn PDF document text
- http://files.fcchoirs.org/uploads/1/3/1/4/131482968/4117951.pdfIn PDF document text
- http://wakekuj.oldlakewoodshop.com/uploads/1/3/2/8/132814930/5fb76.pdfIn PDF document text
- http://files.shizokukaratedo.com/uploads/1/3/1/4/131438234/lomif-joxaw-posegogekumo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/8691/3431/files/dupuzakedezuwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9097/6673/files/sexuvafukufusirup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8491/3563/files/fakanevobo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8775/7461/files/varuvomukex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7221/6483/files/card_player_magazine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7977/7945/files/download_adele_25_album.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/280680.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3070/8385/files/kimokusazewewonasaluv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6784/2459/files/zevedivamematexomipusa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006695.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6695 | 5000 bytes |
SHA-256: 3a5ba82451ecb9a2bb33c8dd3c039b63dbea539cc0df55ea6f7dc9dbc9c83fd8 |
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font_01_sfnt_off000077a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77A8 | 10232 bytes |
SHA-256: 8e6552397b47588c8ff34d35d85713893c5fc128d3f5f02c64b14d8e79cb7e1e |
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font_02_sfnt_off00009aae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AAE | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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