MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains a link farm and a malicious redirector, indicating a social engineering attempt to trick the user into clicking a link. The document body text, though heavily obfuscated, contains references to 'uc browser for pc win 7', aligning with the heuristic 'SE_BROWSER_INSTALL_LURE'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or malware download.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=uc+browser+for+pc+win+7 In PDF document text
- http://files.revolutionscayman.com/uploads/1/3/1/4/131453917/2517064.pdfIn PDF document text
- http://kuxizo.marissabadgley.com/uploads/1/3/2/7/132740541/xasivujuzudomuga.pdfIn PDF document text
- http://files.flokku.com/uploads/1/3/1/4/131408344/3a68e72dfcf.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/1/0435/8415/9903/files/price_is_right_fail_horn.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/vojofujoma.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3127/2346/files/kobivij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1761/4998/files/manual_j_heat_load_calculation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8250/6647/files/tilabibivogopusuropus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7881/0789/files/kadalifepuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8998/3640/files/guxut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7274/8709/files/6349764065.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1218/5494/files/34450177987.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3146/1016/files/geziwubop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5188/4445/files/kepegolusavu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7981/1750/files/39350746663.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9680/1434/files/music_making_apk_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1880/3610/files/zibunesazotivefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6806/2872/files/vuponetawop.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
🗂 Part of campaign:
desertdew.net
9 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63EC | 4776 bytes |
SHA-256: e823fe5ae26bb596af1d21895ed10d4b6c8fc0908566f17938cb1dcfb209afd0 |
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font_01_sfnt_off0000743b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x743B | 9944 bytes |
SHA-256: 1eb90622eb3e634c570dc9cc895286f952fa7fcc716dbfd1a13cfe2b3eb2fa9d |
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font_02_sfnt_off00009610.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9610 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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