MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as a workbook answer key, but the primary link redirects to a known malicious domain (ttraff.ru). This indicates a social engineering attempt to direct users to malicious infrastructure. The PDF structure and embedded links suggest a link-based distribution method, likely for phishing or malware delivery.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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.ru/pify?keyword=medical+terminology+for+health+professions+workbook+answers In PDF document text
- http://files.hitch-n-stitch.com/uploads/1/3/1/8/131857419/e6d906435a.pdfIn PDF document text
- http://files.pvcseagles.com/uploads/1/3/1/3/131381658/wuzedurojejerawuso.pdfIn PDF document text
- http://files.bolderlegal.com/uploads/1/3/1/3/131381519/1a0681d560e.pdfIn PDF document text
- http://zebisubom.varietyville.net/uploads/1/3/0/8/130874284/3976175.pdfIn PDF document text
- http://files.coastguardinvestigativeassociation.org/uploads/1/3/2/7/132740978/975d819b789.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/1/0440/7685/9557/files/76918424632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8238/2502/files/10193382582.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4160/3239/files/4851804688.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/94170380923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0042/2819/files/52536068657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61066914906.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9814/4932/files/jumoxaliwijel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6200/1825/files/61818967460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0113/4747/files/xolilapudixapata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6619/5106/files/10546634765.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7857/4490/files/sokoxixoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9480/9512/files/zidajiju.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_off00004b50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B50 | 5972 bytes |
SHA-256: 16d26e6f3b72ea12375c1574374d9fea8a922fe9f4f9b0665222ba259cfa6de5 |
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font_01_sfnt_off00005f8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F8D | 9152 bytes |
SHA-256: f57d1ec6c65bcd288e70b7a5a9a2270b5aacc75e50b4586ae3c41b4293a4b262 |
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