MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=spectrum+math+grade+6+answers', suggesting a lure to trick users into clicking on malicious links under the guise of finding educational materials. 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=spectrum+math+grade+6+answers
- http://rorobow.brittanyrediger.com/uploads/1/3/1/4/131455463/55f983eee5d5724.pdf
- http://files.freshsenses.ca/uploads/1/3/1/4/131438055/4188298.pdf
- http://fepuwivon.ayusewingproject.org/uploads/1/3/1/4/131454526/9890535.pdf
- https://cdn.shopify.com/s/files/1/0433/8060/5077/files/autocad_lisp_commands.pdf
- https://cdn.shopify.com/s/files/1/0431/8868/2915/files/dolumukazojavabeni.pdf
- https://cdn.shopify.com/s/files/1/0430/3765/5193/files/zijozenojenodibefe.pdf
- https://cdn.shopify.com/s/files/1/0435/2452/2143/files/capitulation_surrender.pdf
- https://cdn.shopify.com/s/files/1/0431/8904/3362/files/liduruzurowolarado.pdf
- https://cdn.shopify.com/s/files/1/0434/1396/2919/files/properties_of_genetic_code.pdf
- https://cdn.shopify.com/s/files/1/0433/3957/9546/files/42544729091.pdf
- https://cdn.shopify.com/s/files/1/0432/8233/3856/files/gaxinapemijovoxibamoliba.pdf
- https://cdn.shopify.com/s/files/1/0429/8883/0873/files/basic_thermodynamics_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0436/2141/7122/files/arching_effect_of_brick_bonding.pdf
- https://cdn.shopify.com/s/files/1/0438/1186/4738/files/155_cdta_bus_schedule.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_off00004973.bina747075e5e23526eead7be3ce202f4316e10f0355c441134f4719907572a981e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4973 | 5804 bytes |
font_01_sfnt_off00005d1f.bined5be8d36864f6f82749ac25ad97e3e11a4c5f3863c26ec7df0158fac4ff01d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D1F | 9352 bytes |
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