MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to known malicious infrastructure, specifically a URL associated with a link farm and SEO spam. The document body text, though heavily obfuscated, contains 'Amcas application pdf', suggesting a lure to trick users into believing it is a legitimate document. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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.com/pify?keyword=amcas+application+pdf In PDF document text
- http://files.elrinteriors.com/uploads/1/3/1/4/131453817/dumulemibiw_xefatijimumugij_jamiladatetexo_rorafure.pdfIn PDF document text
- http://files.westlakepetvet.com/uploads/1/3/1/3/131381946/kenuto-jexewes.pdfIn PDF document text
- http://files.vision-batteries.com/uploads/1/3/1/4/131453934/fcf2a2e4a25141f.pdfIn PDF document text
- http://files.marksturgess.org/uploads/1/3/2/6/132682030/gadiloforasid.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/1/0434/9345/8070/files/21258956037.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2960/files/donejugutakusag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8050/6773/files/81349270351.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2528/5791/files/resojobinumuvojolifivem.pdfIn PDF document text
- https://kebubajogi.files.wordpress.com/2020/07/jubozugamabimilo.pdfIn PDF document text
- https://zodizijemas.files.wordpress.com/2020/06/masexojanusivovetazemeg.pdfIn PDF document text
- https://nenutarutu.files.wordpress.com/2020/07/zolotoso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4410/1544/files/95392747409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0761/4882/files/vesanokegubugomusarek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9502/4033/files/ruvoduganetigowog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76685421079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/16924515599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0801/6027/files/mamumubukasasirenagotufu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7494/4153/files/jonunaloxisubuki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3391/1705/files/jutifarexepugekumok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6718/7108/files/pewuxus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/fewuvonulesexivusefuwunux.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_off00009253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9253 | 4864 bytes |
SHA-256: 8c9fe68bbdc0b915f68f4c472569446c9b7d98d4092ad0761f2ea08f4d136a51 |
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font_01_sfnt_off0000a2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2B2 | 10532 bytes |
SHA-256: a7eeee8968e1ebe0400296aa6a3be7f0a00c2a6b185759a715b68c6a2cb36796 |
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