MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a primary malicious redirector disguised as a book download. The link `https://ttraff.ru/pify?keyword=representation+theory+book+pdf` leads to known malicious infrastructure. The presence of numerous Shopify-hosted PDF links suggests an attempt to create a large, seemingly legitimate link farm to obscure the malicious redirector. The ML classifier strongly supports the malicious verdict.
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=representation+theory+book+pdf
- http://files.smilesensations.ca/uploads/1/3/1/4/131406950/747358.pdf
- http://xinov.thepelham.net/uploads/1/3/0/9/130969060/xusexosinip.pdf
- http://files.scituateriltcc.org/uploads/1/3/0/8/130814121/vivegepaxe.pdf
- https://cdn.shopify.com/s/files/1/0430/6350/9143/files/whatsapp_business_app_for_laptop.pdf
- https://cdn.shopify.com/s/files/1/0441/2683/0744/files/77136812250.pdf
- https://cdn.shopify.com/s/files/1/0434/8434/8569/files/program_to_edit_documents_free.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdf
- https://cdn.shopify.com/s/files/1/0437/6074/6648/files/lagemaxovumav.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.pdf
- https://cdn.shopify.com/s/files/1/0437/6795/5610/files/schindler_s_list_book_free.pdf
- https://cdn.shopify.com/s/files/1/0430/7750/1079/files/81817003546.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off000062f1.bin24638ca2437d417fd014d4820f532e8a6b10b71dc26819e970e21bd546673c28 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x62F1 | 30296 bytes |
font_01_sfnt_off0000c069.bin52240e7c7c06a13693d4426153b97ad6148e235f473c10af2d8eb0e1cac4ed0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC069 | 5412 bytes |
font_02_sfnt_off0000d2cb.binc4c3834a531a262f9da5bcaa199c020e659179ab50e39ebc1818f61fa5e061b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CB | 10236 bytes |
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