Malicious PDF — malware analysis report

Static analysis result for SHA-256 595455f7e743bf18…

MALICIOUS

PDF

47.3 KB Created: 2020-08-24 16:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 551efb9975e12a785b05892d2c5980d0 SHA-1: 3755be125ec9bcfc223bc4d2b0c85b9568f6e94c SHA-256: 595455f7e743bf188e73203f4b3dc7180e48a3f8c840412f2ea3b7d593393aa8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=manualidades+de+navidad+botellas+plasticas'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The document body, though partially corrupted, contains the same keyword as the malicious URL, suggesting a lure for craft-related content. The primary intent appears to be redirecting users to malicious infrastructure via the ttraff.cc domain.

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.cc/pify?keyword=manualidades+de+navidad+botellas+plasticas
    • http://kamoteget.fishamble.com/uploads/1/3/0/7/130775403/9526479.pdf
    • http://files.whitegallowaysofwayby.com/uploads/1/3/0/8/130873907/fewubogukobavel-sixomolimu-mifip.pdf
    • https://cdn.shopify.com/s/files/1/0431/8507/8423/files/vepigovefozunijunari.pdf
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/57772660490.pdf
    • https://cdn.shopify.com/s/files/1/0433/1523/2921/files/41868989398.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3263/files/51484311945.pdf
    • https://cdn.shopify.com/s/files/1/0433/9784/1054/files/80415215680.pdf
    • https://cdn.shopify.com/s/files/1/0433/2748/8168/files/windows_10_setup_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/xedixugewuzerox.pdf
    • https://cdn.shopify.com/s/files/1/0433/7722/9982/files/vufefip.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/bepani.pdf
    • https://cdn.shopify.com/s/files/1/0436/7423/9129/files/20995523482.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nuxekenosagulowagegur.pdf
    • https://cdn.shopify.com/s/files/1/0454/8273/7816/files/error_lnk2019_unresolved_external_symbol_template_function.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_off00007aef.bin
32e76c1493c2f887ef1c7dd2539e592d621dc4f8f44280ec5f1b8b34dc92ff51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEF 5176 bytes
font_01_sfnt_off00008c9b.bin
80f2e611bc8247f9823dee4aa4e8a69ef2ef711c56bab827a5d1724c136c60ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9B 11144 bytes

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