MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to deliver a secondary payload. The document body, though heavily obfuscated, contains text related to worksheets and the PDF creation tool, suggesting a lure to disguise the malicious link. The presence of a large number of external links, many hosted on Shopify, indicates a link farm intended to improve SEO for malicious content.
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=kailanan+ng+panghalip+pamatlig+worksheets
- http://files.devesci.net/uploads/1/3/1/3/131398097/simejuwugana.pdf
- http://dasomewa.hsvb.org/uploads/1/3/2/3/132303035/8546338.pdf
- https://cdn.shopify.com/s/files/1/0437/5743/7080/files/butefinonoje.pdf
- https://cdn.shopify.com/s/files/1/0430/7088/1946/files/65292748061.pdf
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/dawojodesoxurarike.pdf
- https://cdn.shopify.com/s/files/1/0434/2834/8056/files/xarikipibejuri.pdf
- https://cdn.shopify.com/s/files/1/0437/8283/2280/files/agni_natchathiram_video_songs_hd_free.pdf
- https://cdn.shopify.com/s/files/1/0430/9182/0695/files/9067925236.pdf
- https://cdn.shopify.com/s/files/1/0437/4714/7928/files/baxter_furniture_catalogue.pdf
- https://cdn.shopify.com/s/files/1/0433/8332/4822/files/sap_netweaver_7._4_installation_guide.pdf
- https://cdn.shopify.com/s/files/1/0436/1791/0941/files/c_create_array_of_template_objects.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/91498659200.pdf
- https://cdn.shopify.com/s/files/1/0434/7923/6773/files/kindle_app_for_mac_computer.pdf
- https://cdn.shopify.com/s/files/1/0429/7038/2490/files/mesadoranunuxokodizu.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_off00005883.bin8fef82ffc86ceb2c75abcb7978a8a5f869c6cbdfafa542c8f5ce6746430ca161 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5883 | 5360 bytes |
font_01_sfnt_off00006a9e.bin89c9316d5f6018a1f23fb16eafc134d88076fb805efefcaf9864a5670a438643 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A9E | 12212 bytes |
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