MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though obfuscated, contains text related to a user manual and a URL that appears to be part of the lure. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm designed to distribute traffic.
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/wb?keyword=scifit%20pro%202%20user%20manual
- http://files.jamincarson.com/uploads/1/3/1/1/131163632/7393641a559d0.pdf
- http://gukelig.eastcoastspeedwaytv.com/uploads/1/3/1/4/131437089/1746137.pdf
- http://files.marydanroth.com/uploads/1/3/2/6/132681436/0be622fa.pdf
- http://zuket.greatlakesantiquesandartisans.com/uploads/1/3/1/6/131606875/daxole.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
- https://cdn.shopify.com/s/files/1/0430/8379/2533/files/5258138742.pdf
- https://cdn.shopify.com/s/files/1/0429/7513/3859/files/85946997150.pdf
- https://cdn.shopify.com/s/files/1/0438/4541/9165/files/pafamesatimafuwefuv.pdf
- https://cdn.shopify.com/s/files/1/0435/6574/4287/files/bamesupofuziweta.pdf
- https://cdn.shopify.com/s/files/1/0432/6499/9588/files/16798457515.pdf
- https://cdn.shopify.com/s/files/1/0437/3495/8229/files/basics_of_c_programming_book.pdf
- https://cdn.shopify.com/s/files/1/0436/0355/8564/files/negubofap.pdf
- https://cdn.shopify.com/s/files/1/0431/3337/0522/files/subabikoxiloletiboni.pdf
- https://cdn.shopify.com/s/files/1/0438/6881/5528/files/binary_search_tree_implementation_c.pdf
- https://cdn.shopify.com/s/files/1/0435/6364/7131/files/98388537585.pdf
- https://cdn.shopify.com/s/files/1/0431/2412/9952/files/kitelovukoxumu.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_off000070f7.bin2051d49bf6b3d9d9688bb6dbf625c31cdb947ffda5b748e41554f70bfd7f8279 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F7 | 5396 bytes |
font_01_sfnt_off00008336.bin74df45dc8753df92129b64cc2389a1c8b940439c9a56aa18043d3cccc030e500 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8336 | 10312 bytes |
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