Malicious PDF — malware analysis report

Static analysis result for SHA-256 e23769a0fe4c8376…

MALICIOUS

PDF

38.3 KB Created: 2020-08-31 19:59:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63b0a6810c056c18b4c37250a919722b SHA-1: 72eb8e15c42618c51657441e7264fd99f1ee1167 SHA-256: e23769a0fe4c83766467bc8ef58be6110887cccdb74d409461aafe52fa78dbb9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic indicating it's a malicious redirector, pointing to `https://ttraff.com/wix?keyword=the+redistricting+game+answers+mission+1`. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous links to other PDF files hosted on Shopify. This suggests a campaign focused on SEO manipulation or distributing further malicious content. No scripts were extracted from this sample.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Embedded URL info EMBEDDED_URL
    One 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.com/wix?keyword=the+redistricting+game+answers+mission+1
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/bowflex_power_pro.pdf
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/jovevef.pdf
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/mapa_turistico_antequera.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/94606761237.pdf
    • https://static.usrfiles.com/ugd/87fdc7_f20a7f9bdc4549319cc533415733a0a5.pdf
    • https://static.usrfiles.com/ugd/07e02c_ee7a00fd859f4f4f8d96d9a57c3d8afe.pdf
    • https://cdn.shopify.com/s/files/1/0436/0945/6803/files/school_items_vocabulary_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1320/files/alexei_shirov.pdf
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/waiting_for_table_metadata_lock.pdf
    • https://cdn.shopify.com/s/files/1/0435/8914/0643/files/angry_birds_go_apk_data.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.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.

FilenameKindSourceSize
font_00_sfnt_off000058e7.bin
ab69f81b8cee97670a83408f3651d2445b593e89dda61b728acb9ef4950fe407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58E7 5416 bytes
font_01_sfnt_off00006b38.bin
27f20a80fe8c6d825c823b300ef62f539aa4d45ed2834e49c0ea9b9092f21d86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B38 9688 bytes

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