MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
This PDF document contains numerous invisible links, a common technique for luring users into clicking malicious URLs. One prominent URL, https://ttraff.cc/pify?keyword=offenbach+barcarolle+piano+pdf, is identified as a malicious redirector. The document also exhibits parser evasion techniques and a large number of external PDF links, suggesting a sophisticated attempt to disguise malicious intent. The primary goal appears to be redirecting users to potentially harmful 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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Invisible PDF links to CAPTCHA-themed web lure high PDF_CAPTCHA_LINK_LUREPDF contains invisible clickable link annotations that point to a CAPTCHA/capcha-themed web path. This is a common phishing and ClickFix-style routing pattern: the PDF itself is inert, while the linked page performs the credential prompt or fake verification.
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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=offenbach+barcarolle+piano+pdf In PDF document text
- http://files.90daychallengewithamber.com/uploads/1/3/2/6/132695302/f4ab2758f2c.pdfIn PDF document text
- http://files.billmahonskigoldsmith.com/uploads/1/3/1/4/131482958/digulikonutanotuze.pdfIn PDF document text
- http://files.kev-art.com/uploads/1/3/2/8/132815181/zirepupirodalute.pdfIn PDF document text
- http://debekoxi.jtoppbecker.com/uploads/1/3/1/8/131871390/1194716.pdfIn PDF document text
- http://files.mindbody-solutions.net/uploads/1/3/1/4/131453917/a4bd0bd5.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/1/0434/7969/5526/files/recaptcha_ajax_response_text.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6953/6411/files/5767522539.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0144/6551/files/campbells_biology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3524/5216/files/50740760092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4754/2175/files/lezanepizowakagefezejegib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7381/4182/files/pixokagewodovijigote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4275/9071/files/latipepinixemafiwame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4141/4552/files/xebofilapalolivajojeke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5759/4011/files/vajajovokewajafusuwujexus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9952/1181/files/hashset_time_complexity.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5529/2317/files/vewigodabixedufexu.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_off000080f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80F1 | 5232 bytes |
SHA-256: 1341e2d0cfa527c20ab58a0374d0992d08cef674bd0184ef9ea5a8fae95a8b28 |
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font_01_sfnt_off000092ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x92AD | 11448 bytes |
SHA-256: 64a5225bae5fe8325dab680ccd0d2275147cc0909fc736e6d93d23c262f7fe0a |
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