MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains text related to educational worksheets, likely a lure to encourage clicks on the malicious links. No scripts were extracted from this sample.
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=addition+and+subtraction+worksheets+for+4th+grade
- http://files.usna99.com/uploads/1/3/1/4/131454316/edfa8.pdf
- http://rizujur.treatsicecreamparlour.com/uploads/1/3/0/8/130874277/kabevojuwotukol.pdf
- http://lewoxatof.silaepic.com/uploads/1/3/1/0/131069934/bewulanoruruno_logifavet_vixowepurovofu_jejibegizobubag.pdf
- http://files.tammykraft.com/uploads/1/3/1/3/131380895/c7ead4a84e07c12.pdf
- https://cdn.shopify.com/s/files/1/0441/4137/9736/files/ionic_3_angular_4_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0429/2778/4095/files/no_reply_at_all.pdf
- https://cdn.shopify.com/s/files/1/0451/5568/0410/files/lasoboxagebobepomagiba.pdf
- https://cdn.shopify.com/s/files/1/0431/0417/4233/files/23211294175.pdf
- https://cdn.shopify.com/s/files/1/0430/0416/6297/files/bible_quiz_questions_and_answers_from_luke_in_malayalam.pdf
- https://cdn.shopify.com/s/files/1/0430/4610/9341/files/81701859053.pdf
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/82190962865.pdf
- https://cdn.shopify.com/s/files/1/0428/7463/4403/files/sedizuxu.pdf
- https://cdn.shopify.com/s/files/1/0432/6411/4852/files/xozatenagebawew.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 |
|---|---|---|---|
font_00_sfnt_off0000582a.bin99ffadf3e90627890bd533e9824b8324eed37fa0612c6fe88d248d31ddd056fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x582A | 5504 bytes |
font_01_sfnt_off00006af2.bina87ed069c3678ec533330752515734d0e03347784e3eea41cf09ea768e8c56b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AF2 | 10100 bytes |
font_02_sfnt_off00008d7c.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D7C | 4324 bytes |
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