MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to a link farm hosted on cdn.shopify.com, likely for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is disguised as a book download. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body is heavily obfuscated.
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.cc/pify?keyword=the+adventures+of+tom+sawyer+by+mark+twain+pdf+download
- http://files.stitchedwithcare.com/uploads/1/3/1/3/131383624/dowumi-wefudazebukop-wivavin-tajewowe.pdf
- http://files.ignitecities.com/uploads/1/3/0/7/130775195/kerojuvo-fitagojesez-jasog.pdf
- http://files.janelletherien.com/uploads/1/3/2/7/132741176/rebozokesij_makemoripapu.pdf
- http://files.bagsofelegance.com/uploads/1/3/1/3/131398504/kenixer.pdf
- https://cdn.shopify.com/s/files/1/0430/2451/5229/files/kuvosu.pdf
- https://cdn.shopify.com/s/files/1/0428/4222/6854/files/xodajosifefesapi.pdf
- https://cdn.shopify.com/s/files/1/0437/0294/3909/files/vubapiguzamivevu.pdf
- https://cdn.shopify.com/s/files/1/0428/3593/5388/files/bupojademuxifowij.pdf
- https://cdn.shopify.com/s/files/1/0436/1371/6643/files/dulimugigo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65107231385.pdf
- https://cdn.shopify.com/s/files/1/0430/7573/1607/files/39528344257.pdf
- https://cdn.shopify.com/s/files/1/0434/1619/1138/files/94088623609.pdf
- https://cdn.shopify.com/s/files/1/0434/2077/8653/files/kadanafanirirekerikipol.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_off000053c1.binf41fb13b5eaba85ccd070e7175000b2ba97d19fd280b9242c230004b60b019e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53C1 | 5688 bytes |
font_01_sfnt_off00006705.bin8b686155733adf6cd31fd2fcbc376bcdb61c134f03529c79d3fb734de07a0143 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6705 | 10348 bytes |
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