Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4323997d7bda89a…

MALICIOUS

PDF

34.9 KB Created: 2020-08-14 05:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 921e48743fb1e4d27951c8fdae1c8f35 SHA-1: e69bd308fbfcdf23dfeb2deb1b6b60a14d1b17e6 SHA-256: e4323997d7bda89adb5df66443450cb63ad6ade13a3ad478bf01222a03865843
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 of which point to external resources, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=affirmative+negative+interrogative+pdf'. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to external malicious sites.

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=affirmative+negative+interrogative+pdf
    • http://faturop.trevonjakaar.com/uploads/1/3/1/1/131164250/f5018a6e7ac2535.pdf
    • http://files.theharbourcc.ca/uploads/1/3/1/4/131411762/goxameb.pdf
    • http://files.mcccil.org/uploads/1/3/1/1/131163601/1375472.pdf
    • http://jadafe.bachcantatachoir.org/uploads/1/3/1/6/131606262/6821430.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/bloom_taxonomy_questions_for_reading_comprehension.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/porubibagolij.pdf
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/aging_society_and_the_life_course.pdf
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/linux_coding_style.pdf
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/dosazadepubuwox.pdf
    • https://cdn.shopify.com/s/files/1/0441/2666/6904/files/3922024655.pdf
    • https://cdn.shopify.com/s/files/1/0450/5174/0310/files/independent_auditor_s_report_2020_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/tikijisekakibuxawuvol.pdf
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/kewuwugukuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/5337/4874/files/concerning_the_spiritual_in_art_kandinsky.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/29499135905.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_off00004c67.bin
9431ae620da82929874f355dafa30bf8df792971ecdac77205865e776a0767fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C67 5200 bytes
font_01_sfnt_off00005dff.bin
5c85e7af9d42b8df5bd4ef81185e27f7b6465f100df73c4ca241de96f3ca7341		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFF 9624 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.