MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains a URL pointing to a redirector service, which is further corroborated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This suggests a phishing or scam attempt to redirect users to malicious 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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=vitalsource+bookshelf+download+pdf In PDF document text
- http://files.lauracheetham.com/uploads/1/3/1/3/131384771/soxopon-dekujediw-vuzolekujuwidix.pdfIn PDF document text
- http://gafikarak.homeinspectorengineers.com/uploads/1/3/1/6/131636948/dopivav.pdfIn PDF document text
- http://files.rsschool.org/uploads/1/3/1/6/131606256/vejora-kamokafuduz.pdfIn PDF document text
- http://files.teamemfield.com/uploads/1/3/1/3/131379792/61233.pdfIn PDF document text
- http://gopagoz.africananimalworld.com/uploads/1/3/1/4/131453133/mejedupilib.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/5430/1338/files/96033405892.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5662/7866/files/10642124676.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5847/0813/files/exceptional_c_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8122/7672/files/najebixidij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1615/1455/files/11825257526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0729/5140/files/xufivora.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fupibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8113/8343/files/sebulutemetod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0088/7456/files/36071349516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9550/7622/files/zuverujomegavafurat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0623/8613/files/wobapejumoxaginux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3138/6529/files/springboard_algebra_2_unit_1_answer_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4351/1702/files/volvo_a25c_service_manual.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005592.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5592 | 5384 bytes |
SHA-256: 3d45299dd388a53dd8d8337cd0bb93b1177faa7e3a66efae348daa8554844126 |
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font_01_sfnt_off000067e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67E0 | 10440 bytes |
SHA-256: be494e5eabd7378e52a783d58f482dd14bbd863df2f1a244793abcd8310e63b7 |
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font_02_sfnt_off00008bb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BB0 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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