MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm. One critical heuristic identified a link to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains the URL that triggers the redirector. This indicates a social engineering attempt to lure users to malicious content, likely for further exploitation or phishing.
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=tamil+monthly+calendar+2019
- http://vimoni.oilbalance.com/uploads/1/3/1/4/131406082/2555543.pdf
- https://cdn.shopify.com/s/files/1/0429/4528/2214/files/sunusubuxe.pdf
- https://cdn.shopify.com/s/files/1/0432/4474/8950/files/40649682927.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdf
- https://cdn.shopify.com/s/files/1/0432/1551/9912/files/bakosumokijonuroguwi.pdf
- https://cdn.shopify.com/s/files/1/0433/5498/0505/files/zezinozabuw.pdf
- https://cdn.shopify.com/s/files/1/0429/3279/7607/files/66471044346.pdf
- https://cdn.shopify.com/s/files/1/0455/3310/2245/files/free_printable_calendar_word_format.pdf
- https://cdn.shopify.com/s/files/1/0433/2358/8773/files/befefe.pdf
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/nigaxemitudifusasuk.pdf
- https://cdn.shopify.com/s/files/1/0433/0474/7168/files/kitexezefowefi.pdf
- https://cdn.shopify.com/s/files/1/0432/8249/7701/files/rapetusidewurux.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000055ad.bin1d2cc37b9b2e403e5a8c4f54522bde02970a553246356390eb81770e00936608 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55AD | 5536 bytes |
font_01_sfnt_off00006851.binf77598159a4edd82a58e885d60291c7846b193ff94b46487c77684b98c2d8b3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6851 | 7632 bytes |
font_02_sfnt_off00007ed7.bine4ce27eb63b8ae06040705f0d38b95eff9d19602b649ace8f7e06b8eb8b52c0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ED7 | 9812 bytes |
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