MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm designed to appear as legitimate technical documentation, but one of the primary links leads to a known malicious redirector. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's part of a SEO poisoning campaign to drive traffic to malicious sites. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.
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.cc/pify?keyword=cisco+aci+vmware+design+guide
- http://files.musings-rants.com/uploads/1/3/2/7/132712080/saragadamag.pdf
- http://files.sacredhearttutorial.com/uploads/1/3/0/8/130873851/fapibixuril.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/7347/8560/files/apache_tomcat_8._5_for_windows.pdf
- https://cdn.shopify.com/s/files/1/0431/2478/5313/files/rowute.pdf
- https://cdn.shopify.com/s/files/1/0429/8362/0757/files/psychological_case_study_format.pdf
- https://cdn.shopify.com/s/files/1/0430/8258/0130/files/38586806629.pdf
- https://cdn.shopify.com/s/files/1/0437/2230/9786/files/cladogram_analysis_answer_key.pdf
- https://cdn.shopify.com/s/files/1/0460/0781/2257/files/darobawub.pdf
- https://cdn.shopify.com/s/files/1/0443/5856/6044/files/apache_spark_python.pdf
- https://cdn.shopify.com/s/files/1/0432/5713/5257/files/81744711661.pdf
- https://cdn.shopify.com/s/files/1/0431/2553/8973/files/33871529905.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/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006aa1.bin5939db477c508cce9c8d4cb6de5460615ab77fb3e105d688da7df2651ccd5bd6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA1 | 5284 bytes |
font_01_sfnt_off00007c95.bin29d2ed14361e788393fc9115822a4eddf7b435f2d03a578b9153ef7921e0297f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C95 | 10004 bytes |
font_02_sfnt_off00009f13.bina95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F13 | 16204 bytes |
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