MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is disguised as a free video calling app. The document body also explicitly contains this URL and related keywords. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the malicious redirector. The ML classifier also strongly indicated maliciousness.
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=video+calling+app+free++for+pc
- http://files.explorejewishindia.com/uploads/1/3/0/8/130814877/816dcaf10c.pdf
- http://files.shearingjobs.com/uploads/1/3/1/4/131406036/gevemivizej.pdf
- https://cdn.shopify.com/s/files/1/0440/3222/9541/files/full_size_bed_sheets_100_cotton.pdf
- https://cdn.shopify.com/s/files/1/0437/5432/4117/files/63231767079.pdf
- https://cdn.shopify.com/s/files/1/0465/1240/6686/files/l2_kamaloka_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/6956/3290/files/zolebadoxomelot.pdf
- https://cdn.shopify.com/s/files/1/0433/6327/0815/files/data_analysis_test_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0431/8288/2980/files/birekuduvupetusimop.pdf
- https://cdn.shopify.com/s/files/1/0432/4291/3952/files/defebiwuxinikeriku.pdf
- https://cdn.shopify.com/s/files/1/0434/3103/5032/files/7754103862.pdf
- https://cdn.shopify.com/s/files/1/0428/1496/3868/files/20394672882.pdf
- https://cdn.shopify.com/s/files/1/0431/2881/5783/files/tibusagon.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_off00005cb4.bin5f8f254429a27e76b41c06fb5afb8a051f895e8b262f985379b0811308b87e78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CB4 | 5112 bytes |
font_01_sfnt_off00006e24.bin845148eb5fee943df351b6177d0782d423f562c74991e3ab2ef64adac6a043d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E24 | 10532 bytes |
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