MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a known malicious redirector. Additionally, a heuristic indicates a lure to copy/paste clipboard content into a shell, suggesting an attempt to trick the user into executing commands.
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=bacteria+endospore+pdf In PDF document text
- http://files.fitscience.net/uploads/1/3/1/8/131856162/6714994.pdfIn PDF document text
- http://files.lynnjohnstonlit.com/uploads/1/3/2/8/132814680/e93271815.pdfIn PDF document text
- http://weziwodeb.aaronlstrong.com/uploads/1/3/1/3/131379578/fexirubupuri-gunigaf-nilud.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/1/0430/0134/8255/files/xifakusovevawaxuwesexugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1049/0519/files/2248499.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1898/3323/files/75182437176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8026/9477/files/bogufegigug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98973723668.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5117/1478/files/14516020690.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9635/9580/files/8243770942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6509/8908/files/1665784492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6793/0789/files/medicinal_uses_of_avocado_leaves.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupesoxozuwimufuvijolus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/computer_aided_building_planning_and_drawing_lab_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2574/3515/files/31194772751.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00009d4b.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x9D4B | 22444 bytes |
SHA-256: 2963aaf8b589e1c246d6b03d8bd8c2f37a58b6a191d37f4477686628910b03bf |
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font_00_sfnt_off000066a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A7 | 4952 bytes |
SHA-256: 9f1544feffe42a445ddd136e009be295c8170dbe192f49197a5eaf2ba7eba2b3 |
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font_01_sfnt_off0000777e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x777E | 11096 bytes |
SHA-256: 2f9eea287f710dd73f1ead3c7e79775cba7002b3c5a5d963d5b76f2d4a736898 |
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font_03_sfnt_off0000c3a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3A4 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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