MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Youtube embed autoplay' and the malicious URL, suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be a link farm designed to redirect users to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=youtube+embed+autoplay
- http://files.redwillowcatering.com/uploads/1/3/0/9/130969037/podew.pdf
- http://files.cranberryhobbit.com/uploads/1/3/1/3/131379894/ba21425f73e13.pdf
- http://files.rachelseats.com/uploads/1/3/0/8/130813965/7989031.pdf
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/jusexuzoz.pdf
- https://cdn.shopify.com/s/files/1/0430/0118/4417/files/gexozobalilatex.pdf
- https://cdn.shopify.com/s/files/1/0436/0211/6772/files/jovuvituti.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/xuvapufuvegetapaxen.pdf
- https://cdn.shopify.com/s/files/1/0431/7321/6411/files/84360194608.pdf
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/24308410721.pdf
- https://cdn.shopify.com/s/files/1/0430/0007/0307/files/97691960449.pdf
- https://cdn.shopify.com/s/files/1/0430/0279/0039/files/lokubovorusowex.pdf
- https://cdn.shopify.com/s/files/1/0431/3110/9538/files/kavoxinagegil.pdf
- https://cdn.shopify.com/s/files/1/0437/3420/4568/files/gelubatu.pdf
- https://cdn.shopify.com/s/files/1/0429/8198/2361/files/97052895765.pdf
- https://cdn.shopify.com/s/files/1/0434/7301/0845/files/84095521912.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a9a.binbdc9f21c723f402b4e2056ff4ea1d73f83c5a77a0c253fe1b1819a3f6e7c7757 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A9A | 5032 bytes |
font_01_sfnt_off00005b9f.bin7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B9F | 6068 bytes |
font_02_sfnt_off00006b50.bindd03291d3c97dbe4192eced063a90eb7736be5b84b75af277a6508e1a883d6a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B50 | 13472 bytes |
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