MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes text related to a 'Rotex pneumatic cylinder catalogue pdf' and mentions the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The heuristic firings confirm the presence of a malicious redirector link and a large PDF link farm, indicating a probable attempt to distribute malicious content or phish users.
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=rotex+pneumatic+cylinder+catalogue+pdf In PDF document text
- http://files.vigocountycrimevictimassistance.com/uploads/1/3/2/7/132740399/norupusobijemamezav.pdfIn PDF document text
- http://files.vivocollegemusic.com/uploads/1/3/1/1/131164052/7408558.pdfIn PDF document text
- http://files.littlestarsfamilychildcare.com/uploads/1/3/1/4/131406149/padepeline_vebofujujero.pdfIn PDF document text
- http://files.poiseandco.com/uploads/1/3/0/7/130739198/mudegem_xoxumosazegez_zutalis.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/1/0432/6853/8524/files/korekam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2368/7067/files/xuwalotilidetez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3228/9175/files/sefegotibarazor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4885/2891/files/wegekoxemigufuxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4119/2101/files/misizurewatusoritipazu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8789/6480/files/23134389958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5497/9477/files/60883757972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0839/2353/files/45525808962.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/48740453992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8531/5737/files/18894237451.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4074/1275/files/tibujur.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_off00005705.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5705 | 5472 bytes |
SHA-256: 5122067552534ff1ebfbd0090adbf239fa9c7771da555046d1df9f91a92f6211 |
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font_01_sfnt_off000069a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69A2 | 10172 bytes |
SHA-256: aa00a6b22cd965723424cc7c6408e54d7e6298edbb39062785ca668808bc9e84 |
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