MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a malicious URL, disguised with a lure related to 'Toeic answer sheet sample pdf'. This indicates a phishing or scam attempt. The PDF also hosts a large number of external links, many pointing to Shopify, suggesting a link farm used for SEO poisoning or distributing malicious content. No scripts were extracted from this sample.
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.com/pify?keyword=toeic+answer+sheet+sample+pdf In PDF document text
- http://files.k12onlinecurriculum.com/uploads/1/3/0/7/130739377/4882555.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/1/0432/2865/9880/files/8354549221.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5447/2087/files/86871243938.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4211/1637/files/65857528340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8835/4207/files/fuloluluzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3186/3202/files/82970171525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7175/6698/files/john_deere_4410.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8133/4935/files/24101322724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/cajamarca_turismo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3441/8075/files/azure_active_directory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3329/7058/files/academic_writing_sample.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4111/9653/files/65515741536.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8893/7120/files/93412878341.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/77965322131.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4795/6130/files/wazoxakovatexofetegelunil.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A7D | 5436 bytes |
SHA-256: 8d98ac8816f1868d084d656d4874f6fc835ae8c9648a8f77d80e0efa541c1348 |
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font_01_sfnt_off00006cd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CD5 | 10176 bytes |
SHA-256: 09c3f80a2d29e2cf038049c23d186043a4cf634411d15b352ddd7529feb4dfca |
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font_02_sfnt_off00008fd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FD3 | 16068 bytes |
SHA-256: 9e1271d681207e96fe60c94df920a27091a957dc81e2614e9e6235263a34fce6 |
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