MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
T1059.003 Command and Scripting Interpreter: Windows Command Shell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious URL (ttraff.cc). The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs the user to interact with the command line, suggesting a multi-stage attack. The primary intent appears to be redirecting the user to malicious infrastructure for further exploitation.
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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=android+api+level+history In PDF document text
- http://sedajuwa.carolinehubner.com/uploads/1/3/1/0/131070841/3955041.pdfIn PDF document text
- http://files.gelhausdentalclinic.com/uploads/1/3/2/8/132815045/447739.pdfIn PDF document text
- http://files.mrsheridanenglish.com/uploads/1/3/0/8/130874307/9396613.pdfIn PDF document text
- http://files.lovelizex.com/uploads/1/3/0/9/130969624/3fc445d76f1c5c1.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/1/0438/9172/0347/files/donif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4541/2261/files/32481904952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8374/1849/files/include_in_latex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5319/5165/files/wabadanujazuzesikopud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1313/4757/files/mepisazazefufitogu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0006/0310/files/lopusuweloponitoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1526/6713/files/60137889802.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6970/1280/files/9282006013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6941/5327/files/new_orchestra_video.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0710/6462/files/78157051867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6190/3517/files/85729976513.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2630/9535/files/danabesimefu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5519/4011/files/wajexemefufegejezogifovaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6717/8134/files/wamagan.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_off0000b7b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7B9 | 5196 bytes |
SHA-256: 4b3e7a4ace3328b87214396e39fc5111bca5e6d213ee4f06c6ce04a9418e5a98 |
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font_01_sfnt_off0000c961.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC961 | 16648 bytes |
SHA-256: 81093cdf009872a47b39b7ad4c26dbb5f97c6cdf76a700774710f7ecea32997d |
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