Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c38f3b265e66b0…

MALICIOUS

PDF

36.5 KB Created: 2020-08-26 19:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72f214ef8ff806293d7a96680cf7162d SHA-1: a876dd62a78138dec351648a8895cd2099310333 SHA-256: 49c38f3b265e66b068c90a312aa3a7cbb132c4e38b2474f396ba351b46933511
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure related to streaming content, likely to trick users into visiting the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many pointing to Shopify domains, which is a common tactic for SEO poisoning and distributing malicious content.

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=regarder+grey%2527s+anatomy+en+streaming
    • http://files.ravenhealingcenter.com/uploads/1/3/1/1/131164387/676160.pdf
    • http://sobeweb.nwbestcpr.com/uploads/1/3/0/9/130969744/887fe.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/91866762937.pdf
    • https://cdn.shopify.com/s/files/1/0465/1882/9206/files/insomnia_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/veg_biryani_recipe_in_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/athlean_x_shred.pdf
    • https://cdn.shopify.com/s/files/1/0440/7384/4888/files/37256965481.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/serofozirujegaxemorafov.pdf
    • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/61789256357.pdf
    • https://cdn.shopify.com/s/files/1/0436/4101/2377/files/69029913371.pdf
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/69732474954.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004440.bin
9b2edb14db10a4d4ab8149c5e2816ecca928570688831606f398ce3276aff520		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4440 5044 bytes
font_01_sfnt_off00005559.bin
cc30f1957ddbad494e90ee9b68fbb33d413593c5c76a3aa21495186d5349dce5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5559 9852 bytes
font_02_sfnt_off00007724.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7724 4324 bytes

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