Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb45067318549db0…

MALICIOUS

PDF

37.5 KB Created: 2020-08-20 07:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 600367ff9fa2da64efb26a0236ffd5c7 SHA-1: 10ea002be0f2cb4d993cb35aa4528c26b2aff4f0 SHA-256: fb45067318549db036734f1c91897cdf2414fa659791a68163aebc4f1f7e5a2a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily corrupted, contains text referencing 'Google sheets vs excel ipad' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful destination.

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.com/pify?keyword=google+sheets+vs+excel+ipad
    • http://files.kalliejo.com/uploads/1/3/0/7/130775108/lasixosogavenuxilex.pdf
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/gewajibapukaretufidolixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1961/5901/files/fancy_lyrics_reba_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0432/9560/4891/files/89407339680.pdf
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/lukavumajefakarokuvagepir.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/28318786359.pdf
    • https://cdn.shopify.com/s/files/1/0430/8244/9045/files/retirement_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0448/9301/2123/files/synergy_spanish_level_2.pdf
    • https://cdn.shopify.com/s/files/1/0433/3781/0075/files/tugobedotogizoze.pdf
    • https://cdn.shopify.com/s/files/1/0431/3756/4823/files/best_free_bootstrap_4_admin_template_2018.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5142/files/vovozekexarimi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/14468837074.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_off00005508.bin
362e1c375943da0913f31417b273546ca7123fb426c177338265e928aa239276		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5508 5400 bytes
font_01_sfnt_off00006774.bin
825d47bb8192e2a46654e2c952b27ae07ec9b09496638bc662bf2e9b8bd495c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6774 9920 bytes

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