MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, many of which are part of a link farm designed to appear as legitimate content. One critical heuristic indicates a malicious redirector link, and another identifies a link farm structure. The document body also contains a call-to-action phrase, suggesting a lure to click these links. The primary malicious IOC is the redirector URL, which likely serves as the initial stage for delivering further malicious payloads.
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=calligraphy+writing+templates In PDF document text
- http://files.bombexnovelties.com/uploads/1/3/2/7/132740337/b7a286225d93f25.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/1/0431/4539/6384/files/punasisalevefavoge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3920/3229/files/efftronics_written_test_papers_with_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7022/5574/files/extra_wide_king_size_bed_sheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9729/2949/files/bsc_1st_year_physics_mechanics_book_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3105/1943/files/mafamuxoraw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2075/3823/files/kannada_feeling_video_songs_mp4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9127/1586/files/kuliveforajapobov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2204/9695/files/98105851898.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2341/8019/files/kivagukex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3797/4950/files/gumigeberobavasuvaxeja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9300/7272/files/nanisuxumekejufiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0372/4455/files/penn_dot_bulletin_15.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68C4 | 5128 bytes |
SHA-256: 27d384bdfbcd319c1b1b3467d8f50b088b667d032c830af8fc6bc39dc1b870e9 |
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font_01_sfnt_off00007a13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A13 | 10364 bytes |
SHA-256: 3a6ea68be99ae8f70908d1b039cc781739e2f950c79db50c1e6c1da0955f739e |
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font_02_sfnt_off00009dab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DAB | 16192 bytes |
SHA-256: d4c4feb8951055c2fa9bcdd55af7a36c85e906000362d0091f30ac23a55c13ed |
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font_03_sfnt_off0000b2e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2E3 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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