MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a 'clerical ability test' lure, which aligns with the malicious redirector URL. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate malicious destination.
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.cc/pify?keyword=clerical+ability+test+pdf In PDF document text
- http://files.statesocietyofflorida.org/uploads/1/3/0/9/130969083/0ae1478.pdfIn PDF document text
- http://files.evepinsonnault.com/uploads/1/3/2/6/132681672/jugipujunuxex.pdfIn PDF document text
- http://files.bookofcenturies.com/uploads/1/3/1/1/131163851/sabekuf.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/1/0448/1361/5264/files/allen_test_papers_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9051/8940/files/nolegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6797/2515/files/border_collapse_not_working_in.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9734/8514/files/85532510550.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7205/9547/files/dusalatemabuwugopetarego.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2219/5608/files/shooting_guard_drills.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2813/5591/files/25828530925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4112/0679/files/landlord_reference_letter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7684/5728/files/pumijikumexujepinitoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8709/4177/files/sokaxifavamofuxiwedawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2574/4547/files/duridor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5247/4267/files/70966022347.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1767/8497/files/balanceamento_quimico_passo_a_passo.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_off000067ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67CA | 4988 bytes |
SHA-256: bfe780cc1223292851d19e490e9fc0ec557383c2751ab9e6b86fb3b2c8dac5d8 |
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font_01_sfnt_off000078cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78CF | 10416 bytes |
SHA-256: 4657ae1cf1f0c3e1a6fc68b3d1253cf81632e8ba59ecb6c54f647dc89866f439 |
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font_02_sfnt_off00009c61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C61 | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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