MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including one to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, appears to contain the URL for the redirector and several other URLs hosted on cdn.shopify.com, likely as part of a link farm to improve SEO for malicious content. 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.cc/pify?keyword=comparing+fractions+worksheet+grade+5
- http://files.mrfirme.org/uploads/1/3/0/7/130776609/7428100.pdf
- https://cdn.shopify.com/s/files/1/0436/8610/1145/files/jipekofilozazo.pdf
- https://cdn.shopify.com/s/files/1/0434/4204/5090/files/a_an_the_kullanm.pdf
- https://cdn.shopify.com/s/files/1/0433/3250/1656/files/goradufuvofodejevogunel.pdf
- https://cdn.shopify.com/s/files/1/0431/5817/5906/files/taxuvamefawobonigabikobi.pdf
- https://cdn.shopify.com/s/files/1/0447/3988/7255/files/akcent_video_songs_free_mp4.pdf
- https://cdn.shopify.com/s/files/1/0431/1033/4620/files/calabozos_y_dragones_juego_android.pdf
- https://cdn.shopify.com/s/files/1/0437/6068/1111/files/3406b_injection_pump_exploded_view.pdf
- https://cdn.shopify.com/s/files/1/0448/5585/3218/files/22468307892.pdf
- https://cdn.shopify.com/s/files/1/0427/8845/4559/files/resigomikosisuregag.pdf
- https://cdn.shopify.com/s/files/1/0430/9437/6599/files/cyclone_tracy_movie.pdf
- https://cdn.shopify.com/s/files/1/0435/8651/9203/files/mulevalijekedisitufusepu.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_off00005a05.binaabdb15d5ab5fde71b1124321275045f2a1a326767ed2e5f7282f66e4f8d7b67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A05 | 5724 bytes |
font_01_sfnt_off00006d60.binc0a5c84f3e35bec9cfba2b169d69dffc77fc62f7e4870959450142afa207315f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D60 | 10120 bytes |
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