MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=a+user+s+guide+to+principal+components+pdf+free, which is also present in the heuristics. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, including a prominent link to cdn.shopify.com.
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.com/pify?keyword=a+user+s+guide+to+principal+components+pdf+free
- http://files.cristinasbridalma.com/uploads/1/3/0/7/130740212/1439b347b963.pdf
- http://karul.earningadmission.com/uploads/1/3/0/8/130814328/59b9fb360e.pdf
- http://files.clarencelam.com/uploads/1/3/0/7/130776462/mepapu.pdf
- http://files.beekingdomglass.com/uploads/1/3/0/7/130775537/eb545874452.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lexopiwalosadatijasaz.pdf
- https://cdn.shopify.com/s/files/1/0428/2020/6758/files/30388474226.pdf
- https://cdn.shopify.com/s/files/1/0431/5506/2938/files/tebuwawunabofijaru.pdf
- https://cdn.shopify.com/s/files/1/0429/2391/7478/files/2267806867.pdf
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/6131250441.pdf
- https://cdn.shopify.com/s/files/1/0434/3909/5973/files/ms_point_generator.pdf
- https://cdn.shopify.com/s/files/1/0433/8463/5548/files/varasonagudewekiguxoziwez.pdf
- https://cdn.shopify.com/s/files/1/0430/0396/9689/files/23332830146.pdf
- https://cdn.shopify.com/s/files/1/0438/8149/6744/files/all_prefixes_and_suffixes_list.pdf
- https://cdn.shopify.com/s/files/1/0433/3335/3627/files/auditing_notes.pdf
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/30135551033.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_off00004fb3.bin7800c3251d537ee015d1fa7a3bf59eed80212ba9b155d1be067ac993bd734315 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FB3 | 5464 bytes |
font_01_sfnt_off00006238.bin074c04a2a47ff7a2c301a2e3af685ff5daa272650de208ae8962817bf45f3bbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6238 | 10152 bytes |
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