Malicious PDF — malware analysis report

Static analysis result for SHA-256 2964b0f6a2bc5898…

MALICIOUS

PDF

36.0 KB Created: 2020-08-05 09:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fea2970a876c91835a2e6032a7cdc00d SHA-1: 184a6e4fadf70155c8077d76cdee204c80d13c25 SHA-256: 2964b0f6a2bc5898945be0babf8c2cd9bb5b996c498557d1c9b22ba7ac083a29
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=periodoncia+carranza+11+edicion+pdf'. It also exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the primary malicious URL and other embedded URLs, suggesting a lure to a malicious site disguised as a PDF download.

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=periodoncia+carranza+11+edicion+pdf
    • http://files.kpinst.org/uploads/1/3/0/7/130776591/bitamubinonu.pdf
    • http://files.thomasjamesolearydirector.com/uploads/1/3/0/9/130969238/sexaxaru.pdf
    • http://files.revdanielgregoire.com/uploads/1/3/1/3/131398308/1598345.pdf
    • https://cdn.shopify.com/s/files/1/0438/9437/4555/files/zibalijilosijafifodositax.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/stationary_engineer_apprenticeship_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/zitoto.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/zuletagapazof.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/blood_hunter_orders.pdf
    • https://cdn.shopify.com/s/files/1/0437/9013/9549/files/diniganu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/84332432714.pdf
    • https://cdn.shopify.com/s/files/1/0433/6143/5813/files/jekivotawezakoma.pdf
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/kenutukupozafexewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/monatigomuketimokukix.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9894/files/sample_business_plan_construction.pdf
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/pidirevabozonobanu.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_off00004e54.bin
91df2c1674980ebf4db1579338f845a270f5bfe569aaebab3195a0c60e1a47ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E54 5044 bytes
font_01_sfnt_off00005f9b.bin
faa5b9483a0652761fcee1f313ddc3dd48b9ce80c7224558cc6b21a703241e51
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9B 10412 bytes