Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cde18bfe416f356…

MALICIOUS

PDF

40.8 KB Created: 2020-08-12 18:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94758ceb9c3c7bf7b7f0ccd00258f7c9 SHA-1: 6cfdd69b64b4c30c376c0de2db3b2181570c3a20 SHA-256: 4cde18bfe416f356f770a1ca664c670a96d8a69474eec770d17d5825551e8af9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

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 text related to 'aws certified solutions architect professional dumps pdf free' and the malicious redirector URL, suggesting a lure for exam dumps. The presence of numerous links and a malicious redirector indicates a phishing or credential harvesting 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=aws+certified+solutions+architect+professional+dumps+pdf+free
    • http://neboditit.heavenlyhandshousecleaning.com/uploads/1/3/1/6/131637881/3499413.pdf
    • http://files.snugwicks.com/uploads/1/3/0/7/130739789/sisigonenafen_pezefuzogup_mizakov_dejir.pdf
    • http://files.sueanderson.org/uploads/1/3/1/3/131384412/234c64dc5f21.pdf
    • http://kugeliso.citrus2030.org/uploads/1/3/1/0/131070109/2ac3903df7.pdf
    • http://files.fancydollfacepersians.com/uploads/1/3/1/6/131606133/8088000.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6744/files/nedoxukolix.pdf
    • https://cdn.shopify.com/s/files/1/0430/3542/6970/files/xaniw.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/wegunur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/setixinojed.pdf
    • https://cdn.shopify.com/s/files/1/0435/5008/1183/files/vb_net_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0455/6845/8917/files/oracle_business_intelligence_enterprise_edition_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/dezajubixegenidipesaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4310/2618/files/59197169194.pdf
    • https://cdn.shopify.com/s/files/1/0448/1833/3858/files/49149460564.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/90000375881.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/jurelitisizujadidanewigaw.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_off00005fd6.bin
014b2ec3cf58cea5c5978659c7416ac6842baaf4b5b9902c1074ea0c73ed0a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD6 5476 bytes
font_01_sfnt_off0000724d.bin
c895715f75e9414da22760b002e8a85d75ee98f40f26f7c5c22420998d65153f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x724D 10548 bytes

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