Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58ad3c9c8c69f2c…

MALICIOUS

PDF

39.5 KB Created: 2020-08-17 14:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7404b5cf49190e532ad011c8cd8cf985 SHA-1: 287d545fdfb9222dfd70774ee859ad7fc0103086 SHA-256: e58ad3c9c8c69f2c034c9404b6ff742526ae255e6cf0cbbc19c3ccb54cbec64e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=account+management+reporting+examples', is designed to lure users to malicious infrastructure. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on cdn.shopify.com. 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.cc/pify?keyword=account+management+reporting+examples
    • http://files.wedronecostarica.com/uploads/1/3/0/7/130776180/tawadowuk_zadevexumegam_donobag_xitirewokivu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0604/2023/files/mlb_teams_logos.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/pofulorekodur.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2165/files/nojopofulita.pdf
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/add_text_to_in_adobe_acrobat_pro.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6346/files/46507339841.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29876283886.pdf
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/98766937595.pdf
    • https://cdn.shopify.com/s/files/1/0436/4288/0160/files/zitawoz.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/42146769460.pdf
    • https://cdn.shopify.com/s/files/1/0437/6218/8449/files/auspicio_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/mokoremejerewid.pdf
    • https://cdn.shopify.com/s/files/1/0431/1891/9837/files/feline_calicivirus_treatment.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_off0000607c.bin
7932e1bd79e925e485399f3f1d61aa81ae4b88adc9bb73e42ba15fa3d1287d83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607C 5308 bytes
font_01_sfnt_off0000726d.bin
c999b828c18e64b6315bc24fc1ec11ec17a13d2cdb7953c83deb4629d7544af4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x726D 9152 bytes

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