MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'ttraff.ru'. The document body, though heavily obfuscated, suggests a lure related to learning German. The presence of a link farm and the ML classifier's high confidence indicate a malicious intent to direct users to potentially harmful sites.
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=aprender+alem%25C3%25A3o+gratis+pdf
- http://files.devonicity.ca/uploads/1/3/0/8/130814115/7eb73e37.pdf
- http://files.myperformingarts.org/uploads/1/3/1/4/131453998/todiwunozix.pdf
- http://files.bondentertainmentservices.com/uploads/1/3/2/6/132696280/ritilok_farerazexa.pdf
- http://files.makingeverydaysacred.com/uploads/1/3/0/9/130969497/418c5.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/8512/8099/files/75177263109.pdf
- https://cdn.shopify.com/s/files/1/0430/9732/5732/files/nagerofukimil.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/wokulidonika.pdf
- https://cdn.shopify.com/s/files/1/0430/3113/4365/files/mufojuturew.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdf
- https://cdn.shopify.com/s/files/1/0431/3251/8555/files/14960609827.pdf
- https://cdn.shopify.com/s/files/1/0433/3695/8106/files/63970486387.pdf
- https://cdn.shopify.com/s/files/1/0440/5651/0616/files/90731095420.pdf
- https://cdn.shopify.com/s/files/1/0437/7640/9751/files/44272607569.pdf
- https://cdn.shopify.com/s/files/1/0430/3159/3113/files/33187687627.pdf
- https://cdn.shopify.com/s/files/1/0433/6143/5813/files/42396350385.pdf
- https://cdn.shopify.com/s/files/1/0433/2689/8344/files/felewilozivewagawadiwukaw.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007218.bina8f040b42d5165beaeb26dd3a59e4d4421eeed96bad2d4e04e2a0e0f7b57224f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7218 | 5456 bytes |
font_01_sfnt_off000083ed.bina320261fdd12b62737314a60c59c6a920d8030d01bc9bcf46353aab25049a2ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83ED | 12884 bytes |
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