MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to Shopify-hosted PDF files. The ML classifier also strongly indicated maliciousness. The primary attack pattern appears to be the use of a malicious redirector disguised within a link farm, potentially for SEO manipulation or to distribute further malicious content.
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/wix?keyword=hf+polar+m%25C4%25B1+apolar+m%25C4%25B1
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53940391871.pdf
- https://cdn.shopify.com/s/files/1/0437/9272/8224/files/barron_s_ap_calculus_2019.pdf
- https://cdn.shopify.com/s/files/1/0438/3732/5472/files/emoji_keyboard_android.pdf
- https://cdn.shopify.com/s/files/1/0436/4677/9552/files/97542788768.pdf
- https://cdn.shopify.com/s/files/1/0434/6845/6088/files/fafosumaxinixig.pdf
- https://cdn.shopify.com/s/files/1/0436/0205/1229/files/baxugiseve.pdf
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/mitusore.pdf
- https://cdn.shopify.com/s/files/1/0453/9963/8184/files/pics_of_amphibians.pdf
- https://cdn.shopify.com/s/files/1/0435/7770/4607/files/88149666821.pdf
- https://cdn.shopify.com/s/files/1/0445/6205/5332/files/dire_straits_brothers_in_arms_guitar.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
- https://cdn.shopify.com/s/files/1/0429/3325/6345/files/piwuxusevusodute.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_off00005ac1.bindd357f4095da353024f51524d0dc2bb68947bfd22be4b913c1f651537bee1b64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AC1 | 4860 bytes |
font_01_sfnt_off00006b32.bin19c7d1fea1c25805fda5bf8363f55758a79a8103336be3e1558f1157c68b78ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B32 | 11560 bytes |
font_02_sfnt_off00008e4c.bin38f28e66589aaac1d30fe7d2e7c00d3eafcba6df844a1e68f599903ca29b1fa2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E4C | 16096 bytes |
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