MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Avast antivirus' and URLs that appear to be part of a link farm designed to attract search engine traffic. The primary malicious URL identified is https://ttraff.me/pify?keyword=avast+antivirus+2018+apkpure, which likely serves as a gateway to further malicious content.
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.me/pify?keyword=avast+antivirus+2018+apkpure In PDF document text
- http://files.iowaconcreteproductsandmonuments.com/uploads/1/3/1/3/131380786/pajajesa-namedekuv-pupuzivuvitul-nisutofuwuvezin.pdfIn PDF document text
- http://xamajuro.jenniferjostcounseling.com/uploads/1/3/1/4/131405927/5921946.pdfIn PDF document text
- http://files.brightzone.net/uploads/1/3/2/6/132680860/b48e1dfa252e.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/1/0431/5712/7336/files/20473760834.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/ralisafaketaxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9971/6770/files/flexo_printing_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4066/9849/files/worejimuvazaloxomubizil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1430/5430/files/abn_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5598/9404/files/gupupogadep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/0423/6700/files/25658469365.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1991/0811/files/70535191639.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0677/0849/files/46696324751.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2839/7732/files/online_auction_system_project_documentation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5522/6773/files/xajilekakobib.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_off000067f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67F3 | 5416 bytes |
SHA-256: 5adc37f5fe5b5f51ca45695e8003a73ae9cd798e513eefc098e16a28891bcaa4 |
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font_01_sfnt_off00007a73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A73 | 10120 bytes |
SHA-256: c7b3f04285e882295d7709d5baa39daeee2e9b2aac729a922c1445ba6b61e045 |
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