MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded JavaScript and multiple links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=explanation+letter+for+late+submission+of+report'. The document body, though partially corrupted, suggests a lure related to a late report submission. The presence of numerous other links to PDF files hosted on Shopify and other domains indicates a link farm SEO tactic, likely to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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=explanation+letter+for+late+submission+of+report In PDF document text
- http://rivamuj.michigantales.com/uploads/1/3/0/8/130874222/7466375.pdfIn PDF document text
- http://files.vawvtrampoline.com/uploads/1/3/0/7/130776656/11eedae.pdfIn PDF document text
- http://files.kangarooislandvet.com/uploads/1/3/1/0/131070604/7a562508.pdfIn PDF document text
- http://files.shavanocreek.com/uploads/1/3/1/3/131398159/tazok.pdfIn PDF document text
- http://tegon.sharonbaptisthamptonva.com/uploads/1/3/1/4/131438539/997d9f1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7252/0352/files/80019801346.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5827/3183/files/autocad_3d_modeling.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/rosalind_hursthouse_on_virtue_ethics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5730/7039/files/comparison_between_axial_and_centrifugal_compressor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6297/6921/files/sununaxolosilerip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5891/2662/files/best_open_source_reader_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1373/2512/files/4255310909.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2193/3466/files/senorare.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2865/1938/files/investment_agreement_contract.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4423/9510/files/37359688451.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_off0000ad93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD93 | 2828 bytes |
SHA-256: dd7b880f1c6958317b71933e3175eb4154b1281d355b69180e4ce829e506ee21 |
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font_01_sfnt_off0000b78d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB78D | 5212 bytes |
SHA-256: 2866ea6519b5b2905d94aff785c26857c1cd1c2add7712889b579f818a6b79c4 |
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font_02_sfnt_off0000c92d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC92D | 9828 bytes |
SHA-256: 6008182200a74be04df41e3ae35709b523b207afcd953e872594c7e3cca7e387 |
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