MALICIOUS
194
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.ru/pify?keyword=bohat%25C3%25BD+t%25C3%25A1ta+chud%25C3%25BD+t%25C3%25A1ta+pdf+download`. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to Shopify domains. The document body text, though garbled, includes the same malicious redirector URL and a benign Shopify URL, suggesting a lure to disguise the malicious link. The primary intent appears to be redirecting users to malicious infrastructure, likely for further exploitation or phishing.
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.ru/pify?keyword=bohat%25C3%25BD+t%25C3%25A1ta+chud%25C3%25BD+t%25C3%25A1ta+pdf+download In PDF document text
- http://files.lutg.org/uploads/1/3/1/4/131453944/pijavosebuwefevalu.pdfIn PDF document text
- http://files.marketmovesmatt.com/uploads/1/3/0/8/130874629/nuvigure-bufagejiv.pdfIn PDF document text
- http://rosali.gerrygillespie.net/uploads/1/3/1/3/131380999/tepejeradavam.pdfIn PDF document text
- http://files.cheskasstore.net/uploads/1/3/2/7/132712040/fonopexevi_gufivo_wudapurefefu.pdfIn PDF document text
- http://files.casa-collective.com/uploads/1/3/0/7/130775795/teniparogebum_dalos.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/1/0431/7885/2507/files/69384103111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5547/1002/files/mathematical_analysis_and_applications.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9097/5647/files/zudubuwoxojopez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3359/8880/files/goxadejagilekawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3860/5461/files/segapave.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0862/9659/files/ruribijibivuserit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9097/5647/files/jazesufefamemiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4899/2922/files/24438614484.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4145/5254/files/30455170532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9259/9193/files/63606270934.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4087/4408/files/5143868614.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2536/7194/files/64030021184.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8607/6309/files/bapazepojufober.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_off00008199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8199 | 5468 bytes |
SHA-256: fbffd8b1571cf6b51bc97a5d0571fff020f144b8ecd8254f14aebb756655461e |
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font_01_sfnt_off000093bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93BB | 12976 bytes |
SHA-256: 0b8abd9f27c9c8c5121ddb80b5f8bef3ac829fda38c89e80f1e7a0b8b9fefbf4 |
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