MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.ru/pify?keyword=factoring+trinomials+a+not+1+worksheet+pdf, which is part of a larger SEO link farm strategy. 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=factoring+trinomials+a+not+1+worksheet+pdf
- http://mikos.midnight-farm.org/uploads/1/3/1/3/131380005/7726636.pdf
- http://files.valetridents.com/uploads/1/3/0/8/130814534/14239dd1d13d9.pdf
- http://files.livetosparkleblingboutique.com/uploads/1/3/0/8/130813320/8af898c14af.pdf
- https://cdn.shopify.com/s/files/1/0434/8837/9032/files/rabolupogijowejo.pdf
- https://cdn.shopify.com/s/files/1/0441/0313/9480/files/61817270598.pdf
- https://cdn.shopify.com/s/files/1/0432/4347/1003/files/20132428028.pdf
- https://cdn.shopify.com/s/files/1/0428/8797/0975/files/warenesipoxa.pdf
- https://cdn.shopify.com/s/files/1/0429/7375/7603/files/compress_bitmap_android_programmatically.pdf
- https://cdn.shopify.com/s/files/1/0457/7938/6534/files/nvidia_jetson_tx2_data_sheet.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdf
- https://cdn.shopify.com/s/files/1/0432/9861/9557/files/sataxobosewutobepoje.pdf
- https://cdn.shopify.com/s/files/1/0433/6985/7176/files/ketupid.pdf
- https://cdn.shopify.com/s/files/1/0428/1604/5222/files/lagu_nineball_akulah_serigala_wapka.pdf
- https://cdn.shopify.com/s/files/1/0433/3328/8088/files/34884462871.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_off000060df.bina402d8535014ee5c5faa86f058936360698730b0b3228bc00dabc6946a7bbb99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60DF | 5732 bytes |
font_01_sfnt_off00007448.bine99b3ae3fda04e6dfb9f64c04c67368d008ec9560b4664c56b03d7475980ddef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7448 | 10132 bytes |
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