MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=cyberduck+portable+windows', which is also listed as a malicious redirector. The presence of numerous links suggests an attempt to direct users to external, potentially malicious, sites for phishing or malware delivery.
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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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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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=cyberduck+portable+windows In PDF document text
- http://files.connectivityusa.net/uploads/1/3/1/6/131606454/8656316.pdfIn PDF document text
- http://files.abesboatrental.com/uploads/1/3/1/4/131453208/9cd1d20ad.pdfIn PDF document text
- http://files.bbsimon.com/uploads/1/3/2/6/132682570/tudijimavu.pdfIn PDF document text
- http://gurolupuk.theorwellscommunityshop.co.uk/uploads/1/3/1/4/131409090/nalezez-romemej-zerigapus.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6563/8050/files/simplesmente_acontece_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7708/2019/files/kevunodozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1797/7504/files/buparisoxizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0054/4931/files/84717375070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0972/6870/files/zovenuzudemujokuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagitigupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7301/1866/files/98195255018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2297/4117/files/trusting_god_bible_study.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5690/6911/files/dedakiniruraxolivasoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6963/5746/files/putufuwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1777/0904/files/22578487468.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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B37 | 5660 bytes |
SHA-256: 450ca30217685671769d50b1e776aa1308a04423d822b4899a640997cb731b92 |
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font_01_sfnt_off00007f05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F05 | 5372 bytes |
SHA-256: 136b3f618a13ab73d0f385abf33edb3d596ef20802b9673bedc478ec2593af7d |
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font_02_sfnt_off00009159.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9159 | 6640 bytes |
SHA-256: 2da83060ad210a9a1743b04a22b2cc5ebb14ba7af64fbaa5f25da2d26a1b3d84 |
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font_03_sfnt_off0000a2f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2F7 | 11264 bytes |
SHA-256: 56c1e298fce09241d029717ad755941f1c63331071c4f0d9b5005dbf443f5a8e |
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font_04_sfnt_off0000c958.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC958 | 17028 bytes |
SHA-256: ab52cd6058e2387e28f9e08a9bfb9d9562fc63bb839c0e172710fef602dfda09 |
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