MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which points to ttraff.ru. The document body also contains this URL, presented alongside links to what appear to be academic papers hosted on Shopify. This suggests a lure to a malicious site under the guise of providing research material. The ML classifier also strongly indicated maliciousness.
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=pass+function+as+template+argument+c%252B%252B
- http://files.english-language-arts.com/uploads/1/3/1/3/131379543/9063948.pdf
- http://files.fxhugheslaw.com/uploads/1/3/1/1/131164211/137ea9925e3.pdf
- http://kepapow.landofmadmen.com/uploads/1/3/2/7/132712116/xilizikoje.pdf
- https://cdn.shopify.com/s/files/1/0445/8138/8452/files/geankoplis_5th_edition.pdf
- https://cdn.shopify.com/s/files/1/0432/5454/6594/files/swot_analysis_of_pepsico.pdf
- https://cdn.shopify.com/s/files/1/0433/9341/7367/files/nejaziwugazodazerusokerad.pdf
- https://cdn.shopify.com/s/files/1/0431/7901/6360/files/sonelaruwi.pdf
- https://cdn.shopify.com/s/files/1/0433/2892/9960/files/97410562297.pdf
- https://cdn.shopify.com/s/files/1/0429/9938/2170/files/26652111455.pdf
- https://cdn.shopify.com/s/files/1/0440/5621/5702/files/23473921435.pdf
- https://cdn.shopify.com/s/files/1/0438/3830/8512/files/lofabigu.pdf
- https://cdn.shopify.com/s/files/1/0462/6540/1495/files/suwerikuzurogagifop.pdf
- https://cdn.shopify.com/s/files/1/0435/9972/4702/files/saguxogidag.pdf
- https://cdn.shopify.com/s/files/1/0427/4490/5884/files/tidekemuxelokifujogodinuv.pdf
- https://cdn.shopify.com/s/files/1/0430/9365/5716/files/smith_thompson_home_security.pdf
- https://cdn.shopify.com/s/files/1/0431/6643/3435/files/18185074294.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_off0000796c.bin591e76f009c13404cb5c4a6b44e2e3e7a0c716d9e3b034ee847d5d7ed3280d9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x796C | 5336 bytes |
font_01_sfnt_off00008b73.bin1539d79c1d4128196e737f6ba8d5beaac2735740d44d12d83817353a72c4750f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B73 | 15212 bytes |
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