MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Puzzles for interviews with answers' and the URL 'https://ttraff.ru/pify?keyword=puzzles+for+interviews+with+answers', suggesting a lure to a malicious site. The presence of a link farm and the ML classifier's high confidence further support the malicious classification.
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=puzzles+for+interviews+with+answers
- http://files.artbylauranicole.com/uploads/1/3/1/0/131070588/7648793.pdf
- http://nodibuz.rbkranch.com/uploads/1/3/1/4/131482976/5630340.pdf
- http://vuwomozu.artculturevs.org/uploads/1/3/1/3/131379394/debazemololumobug.pdf
- http://suvavexe.northerneventrentals.com/uploads/1/3/1/6/131607163/dujokipokibatu-vuforatid-jixagivuzuwupo.pdf
- http://files.dynamicfunctionalfitnessllc.com/uploads/1/3/1/6/131636719/8675810.pdf
- https://cdn.shopify.com/s/files/1/0430/8588/9689/files/32289361559.pdf
- https://cdn.shopify.com/s/files/1/0437/7113/4106/files/powos.pdf
- https://cdn.shopify.com/s/files/1/0433/8683/0998/files/dupigoxoz.pdf
- https://cdn.shopify.com/s/files/1/0432/4481/4500/files/dolaze.pdf
- https://cdn.shopify.com/s/files/1/0435/2930/6272/files/sedentarismo_en_mexico_2020.pdf
- https://cdn.shopify.com/s/files/1/0437/1218/4474/files/64270491217.pdf
- https://cdn.shopify.com/s/files/1/0433/5868/3295/files/42794371817.pdf
- https://cdn.shopify.com/s/files/1/0433/9780/8279/files/cardiovascular_physiology_david_mohrman.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikakaxudote.pdf
- https://cdn.shopify.com/s/files/1/0436/1197/9939/files/canara_bank_gold_loan_application_form.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007c70.binfaa70a2ba9660592d21eb2986f87443d8be732ceeaa75fe62cf6e0f5c0eaba6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C70 | 5056 bytes |
font_01_sfnt_off00008db5.bin6874de76e184c77540fead86b5475e142abe9c2b71880ae44e1ad4bc3d6442fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DB5 | 10548 bytes |
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