MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=informal+letter+writing+format+pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. This suggests the document is designed to redirect users to malicious sites, likely as part of a phishing or scam campaign.
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=informal+letter+writing+format+pdf
- http://files.vailmassagetherapist.com/uploads/1/3/1/4/131437376/7bc860bc6b.pdf
- http://files.upperroomcardington.com/uploads/1/3/2/7/132741382/2334017.pdf
- http://files.bluecactuspoolservice.com/uploads/1/3/0/8/130873708/5009653.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/1249/7312/files/a_posteriori_error_estimation_in_finite_element_analysis.pdf
- https://cdn.shopify.com/s/files/1/0431/0273/2448/files/sklearn_multilayer_perceptron.pdf
- https://cdn.shopify.com/s/files/1/0435/0440/2584/files/19602100446.pdf
- https://cdn.shopify.com/s/files/1/0428/9472/1187/files/32703647587.pdf
- https://cdn.shopify.com/s/files/1/0437/3292/6616/files/reading_skills_file.pdf
- https://cdn.shopify.com/s/files/1/0433/6277/9295/files/57467609991.pdf
- https://cdn.shopify.com/s/files/1/0430/8251/4581/files/atopic_dermatitis_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0437/1664/0919/files/mamajevekebizelenivawaxof.pdf
- https://cdn.shopify.com/s/files/1/0433/8017/9107/files/the_force_awakens_visual_dictionary.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/mijapimivoxerunadem.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7957/files/wosefamojurarax.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f2e.bin81734342d7ff7746df8a5f7e417918fa9de70d454200c59098b8059f5b53fd30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F2E | 5212 bytes |
font_01_sfnt_off000070eb.bin0317efc4b2268f6c136b2c53755ba8f008f7a52999c1c8a2ba185cdbf0d1ac80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70EB | 10732 bytes |
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