MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links pointing to a redirector service, which is a common tactic for phishing and malware distribution. The ML classifier strongly indicated maliciousness, and heuristics identified the PDF as a redirector link and part of an SEO link farm. The document body, though heavily obfuscated, contains the primary malicious URL, suggesting an attempt to lure users to a malicious site under the guise of an annual report.
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.cc/pify?keyword=british+empire+trust+plc+annual+report In PDF document text
- http://files.all4pawsdogrescue.com.au/uploads/1/3/1/4/131455883/9425829.pdfIn PDF document text
- http://tipowanam.joychoquette.com/uploads/1/3/1/6/131636879/1211225.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/1/0450/4908/6102/files/all_of_me_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6955/5359/files/novikuzuvafagadiwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4837/8266/files/59461591353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6499/1637/files/pipuraxovituki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9792/2461/files/assetto_corsa_car_setup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7133/0709/files/suicidal_thoughts_biggie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3574/4673/files/insulin_aspart_davis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2062/2756/files/antoine_hubert_accident_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1368/4891/files/zinagexaxofitobin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1540/4695/files/mei-_chan_no_shitsuji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/avengers_earth_s_mightiest_heroes_torrent.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/9206/1851/files/pelumaxuvo.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_off00008126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8126 | 5104 bytes |
SHA-256: 5244b657923336d8516ac43f867390ff8f42f9bfb991e44364593e0d96a59dca |
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font_01_sfnt_off00009256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9256 | 10392 bytes |
SHA-256: 4648459613640bcd0c9128522f181c358a1cb40866a6ca7096d984d892637e57 |
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font_02_sfnt_off0000b5d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5D4 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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