MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=how+to+make+math+worksheets+on+excel, which is flagged as malicious. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.
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=how+to+make+math+worksheets+on+excel In PDF document text
- http://files.hinterlandservices.com.au/uploads/1/3/0/7/130739652/6417667.pdfIn PDF document text
- http://files.azracquetball.com/uploads/1/3/1/6/131637186/1122189.pdfIn PDF document text
- http://jawubu.evanjosephsalon.com/uploads/1/3/1/6/131606060/dejikoxe-bonudek-peruvonerose.pdfIn PDF document text
- http://files.warrior196.org/uploads/1/3/1/3/131384401/7372290.pdfIn PDF document text
- http://xogun.serbianheritageacademyofcanada.ca/uploads/1/3/0/7/130776208/507e58109.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/1/0428/9835/8432/files/85286147205.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2773/2379/files/agamennone_eschilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9749/6483/files/vixem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0349/5071/files/95104803095.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6130/5756/files/92459363350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3810/8830/files/android_adaway_not_working.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0335/5034/files/jatigekaguvor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7381/4182/files/muvaxokuza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9592/4640/files/zikex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/3644/6613/files/hannah_s_bretzel_nutrition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7865/5903/files/burma_film_video_songs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.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_off00005e7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E7A | 5224 bytes |
SHA-256: 9bdcb156cf3d06085438844c53533f4849b4352493d056afc0ac1706c24c25a8 |
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font_01_sfnt_off00007024.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7024 | 10068 bytes |
SHA-256: 12ec87786a0ecfdebaa0d85325d8674b4eae2b31190a387ae0c5c3f447978ea4 |
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