MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded external links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=literal+equations+worksheet+%25231+answers', points to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and does not provide clear textual lures.
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=literal+equations+worksheet+%25231+answers In PDF document text
- http://files.pendapat-malaysia.org/uploads/1/3/1/8/131856827/1294950.pdfIn PDF document text
- http://files.goldensandsresort.ca/uploads/1/3/1/4/131438583/dajulufipakemer-jomedejufivuboz.pdfIn PDF document text
- http://files.rootswellness.net/uploads/1/3/1/4/131437276/8763726.pdfIn PDF document text
- http://files.withagrainofrye.com/uploads/1/3/1/4/131454304/383148c902c7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://jipikufe.files.wordpress.com/2020/06/90621518781.pdfIn PDF document text
- https://bolivuxane.files.wordpress.com/2020/06/suvalom.pdfIn PDF document text
- https://gipumagu.files.wordpress.com/2020/07/19818701655.pdfIn PDF document text
- https://siwisikem.files.wordpress.com/2020/07/sunodulorubedudojip.pdfIn PDF document text
- https://pamifanasote.files.wordpress.com/2020/06/motosebitotabugirinur.pdfIn PDF document text
- https://duvumis.files.wordpress.com/2020/07/91196773448.pdfIn PDF document text
- https://lemupod.files.wordpress.com/2020/07/kudovadedozawu.pdfIn PDF document text
- https://dejoxiritejo.files.wordpress.com/2020/07/wirofosofexatasedotodave.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3966/0954/files/4287424776.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2270/4030/files/37693014018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2355/7030/files/32593018690.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/mopusowuzaloku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9238/5700/files/wepexitorosif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8414/5049/files/tisow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7217/6799/files/xowosalupu.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006fb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FB7 | 4876 bytes |
SHA-256: 45979e08d5ded5c359e8f46987d0805c0329aa72e7beda2d9409514cda110653 |
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font_01_sfnt_off00008054.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8054 | 9724 bytes |
SHA-256: b57f38340fa330232041f82b3910e12d5a42f12fca4bede6cc85cc88a7e98c24 |
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