Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef459ea81eb9a10f…

MALICIOUS

PDF

59.4 KB Created: 2020-08-02 01:07:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91624804bfe46957ebdd61ff29091556 SHA-1: d163ae947fdf84759ca42a7713678401b08b4305 SHA-256: ef459ea81eb9a10f4a21762d9e0ce788b83771f74696f9763fdf8d72de2d9703
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=visual+studio+2005+redist', suggesting a lure related to software downloads. This indicates a phishing or malware distribution attempt.

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=visual+studio+2005+redist
    • http://files.mcamelbeke.com/uploads/1/3/0/8/130814717/26e669e4c3f0f.pdf
    • http://files.estellessweetitchblankets.com/uploads/1/3/1/4/131409170/tixavaxanepuluxuvit.pdf
    • http://files.routesandboots.com/uploads/1/3/1/4/131437410/miruwavodufub.pdf
    • https://cdn.shopify.com/s/files/1/0439/2720/8091/files/convert_xfdl_ke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdf
    • https://cdn.shopify.com/s/files/1/0433/8244/0103/files/bupidatise.pdf
    • https://cdn.shopify.com/s/files/1/0444/4710/5191/files/activador_office_2016.pdf
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/rasakexodojisetutadokukek.pdf
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/kitchenaid_superba_dishwasher_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/indiana_st-_105.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/folizuxuzeje.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/juwasegi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
    • https://cdn.shopify.com/s/files/1/0438/9083/5624/files/tapifuja.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.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/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/t

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009ed0.bin
cbe3844aa897265b9a02a2677e9eedb700db01cf17a9345f1c2116de8bd7e405		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ED0 5184 bytes
font_01_sfnt_off0000b07f.bin
7e493f44ab4721424e547d956b89d9cac52655cb0dc78ab8ac119a31916c33d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB07F 15408 bytes

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