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 benign Shopify URLs, but one critical link directs to a known malicious redirector. This suggests the document is part of a link farm designed to obscure malicious destinations and potentially lead users to phishing or malware download sites. The ML classifier strongly supports the malicious nature of this PDF.
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=cold+chisel+bow+river+sheet+music
- http://files.audreylewisinteriors.com/uploads/1/3/0/7/130738836/2116453.pdf
- http://tafiraru.waitingwithyou.com/uploads/1/3/0/9/130969060/befdcd21d.pdf
- http://files.milwaukeephotobooth.net/uploads/1/3/1/8/131871419/700e32a98a8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/1460/9305/files/clinician_administered_ptsd_scale_caps.pdf
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/lukonotojoge.pdf
- https://cdn.shopify.com/s/files/1/0435/5801/1035/files/bank_note_press_dewas_question_papers.pdf
- https://cdn.shopify.com/s/files/1/0432/2574/3521/files/69820561847.pdf
- https://cdn.shopify.com/s/files/1/0434/3765/4178/files/crazy_train_solo.pdf
- https://cdn.shopify.com/s/files/1/0430/6285/3794/files/degitusaz.pdf
- https://cdn.shopify.com/s/files/1/0437/6156/5850/files/american_history_test_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/47313823226.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_off000043d1.bin54d6e55dd7267ad6c437981a858877911acb80ae7f931abbce5428ffc55f0599 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x43D1 | 5164 bytes |
font_01_sfnt_off00005551.bin8b2e7ec68202d7c7e348f0547155669f5389524e1eba710b42893bde46813a68 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5551 | 9828 bytes |
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