MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with the primary link directing to a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Wavepad free audio editor app for android', suggesting a lure for users seeking software. The ML classifier strongly indicated maliciousness, and the presence of numerous links to external PDFs, many hosted on Shopify, points to a content-driven phishing or malware distribution attempt.
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=wavepad+free+audio+editor+app+for+android
- http://files.sherriobermark.com/uploads/1/3/0/7/130775916/dogafetagel-xubujal.pdf
- http://files.maggieessig.com/uploads/1/3/1/4/131438437/rumifiv.pdf
- http://rudegekef.inspiredfictionbooks.com/uploads/1/3/1/3/131380606/84b856016c2b.pdf
- http://mabuno.lebonearchitects.com/uploads/1/3/0/8/130814328/jovikukupovebebem.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/5340204349.pdf
- https://cdn.shopify.com/s/files/1/0428/4389/8019/files/pajutibolerezodo.pdf
- https://cdn.shopify.com/s/files/1/0428/2934/9030/files/writing_conclusion_sentences_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0431/4356/1376/files/dejogimeparubasired.pdf
- https://cdn.shopify.com/s/files/1/0439/5981/2254/files/82328233401.pdf
- https://cdn.shopify.com/s/files/1/0434/5407/0951/files/51461250666.pdf
- https://cdn.shopify.com/s/files/1/0432/9432/6939/files/71617590415.pdf
- https://cdn.shopify.com/s/files/1/0432/4071/8496/files/55712689796.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_off00005d0c.binfa8213a717b6aba450f3c82e11134173ff7a33f99a09312646aa7343735bb940 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D0C | 4900 bytes |
font_01_sfnt_off00006dd8.bin8c4958861dd4640bfc8cf0925027aa9395dcb4c7afcc7e7a9cd4436d18b9d8f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DD8 | 10660 bytes |
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