Malicious PDF — malware analysis report

Static analysis result for SHA-256 be78a8d20d79e957…

MALICIOUS

PDF

44.8 KB Created: 2020-08-26 08:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d10b5bc3e5b4c1ea630cd8903397fa6 SHA-1: a2ec97c0f861f6473c7a2d6b0be281d5ba658719 SHA-256: be78a8d20d79e9577d579a3bfe44ad08ff572b644a9672ee1d9408d37428d718
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 points to 'https://ttraff.link/pify?keyword=ezgo+36+volt+battery+charger+troubleshooting'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to Shopify domains. The document body, though partially corrupted, contains the same redirector URL and a benign-looking PDF link, suggesting a lure to a malicious site.

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.link/pify?keyword=ezgo+36+volt+battery+charger+troubleshooting
    • http://vegabo.dundasmassage.com/uploads/1/3/1/3/131398097/7351158.pdf
    • http://files.barrettbrownpro.com/uploads/1/3/0/8/130874524/55ab4f.pdf
    • http://teginek.curtfonger.com/uploads/1/3/0/7/130739615/5734659.pdf
    • http://files.mvcms.org/uploads/1/3/0/7/130739318/lolifejiwozite.pdf
    • http://files.protectionfenceco.com/uploads/1/3/1/8/131856234/tuboj-ziwatabom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/nigumimibusepalava.pdf
    • https://cdn.shopify.com/s/files/1/0429/4426/6399/files/iron_deficiency_anemia_nejm.pdf
    • https://cdn.shopify.com/s/files/1/0431/9723/5363/files/limifasaduvasiwoxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/20345292420.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/99649551533.pdf
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/lategamutijurewi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7015/1061/files/85432970146.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2109/files/vesozalu.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_off0000677c.bin
42ab1b3ee9d4d3fa696af9829442875b7086bb16abdef7be858e049806a8f1fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677C 5688 bytes
font_01_sfnt_off00007ae9.bin
37d6b5ba03adbf088aae1619544483474163f202c68de81de60319bf13e8fc4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE9 13652 bytes

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