MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=chuy%25E1%25BB%2583n+file+pdf+sang+d%25E1%25BA%25A1ng+%25E1%25BA%25A3nh'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on various domains. The presence of a 'download button' heuristic further suggests a lure to trick the user into clicking these links. No scripts were extracted from this sample.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=chuy%25E1%25BB%2583n+file+pdf+sang+d%25E1%25BA%25A1ng+%25E1%25BA%25A3nh In PDF document text
- http://files.clearforkpublishing.com/uploads/1/3/1/8/131871659/sovaxitavoreduz.pdfIn PDF document text
- http://files.thecuriouscatgiftshop.com/uploads/1/3/2/6/132681596/puwakir.pdfIn PDF document text
- http://files.oursavinggrace.co.uk/uploads/1/3/1/8/131856498/8cadd82d2a0a5.pdfIn PDF document text
- http://files.rlbartstudio.com/uploads/1/3/1/1/131163590/9097118.pdfIn PDF document text
- http://files.musicdepotrocks.com/uploads/1/3/2/6/132696044/6639480.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/1/0434/8909/9938/files/20754363270.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8072/8224/files/81191300625.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3728/4762/files/koverigilu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9541/6213/files/88347350243.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4958/0704/files/wowaderovujaxudukegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6989/8914/files/50194716063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6807/0815/files/meveg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5322/6913/files/29297645161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1028/5990/files/61948895605.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3519/6566/files/zagilulusoxuwelogemagis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3963/8179/files/majomiwokefitibod.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_off000089a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89A6 | 5724 bytes |
SHA-256: 4cf117923a2246777c3e24ede8deeca8cff561f34e25e46e226445f3c731abc3 |
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font_01_sfnt_off00009ba6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BA6 | 12716 bytes |
SHA-256: 794b29c5065da8c03217d54380c08f3a1a645e0fc4209f60f62b2a27c400cffa |
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