Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00367d920059a1a…

MALICIOUS

PDF

43.3 KB Created: 2020-08-21 06:33:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 734e5c9bf867cd34dabdc5305f3585e9 SHA-1: 354c56ca83d9a8cda6d4ae5ef8044e481e985095 SHA-256: c00367d920059a1a498b5b69e819e3a89ae651394bc40ec7acfed2c852dd621c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains hosting other PDFs, indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=socrative+math+answers'. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for phishing or malware delivery.

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=socrative+math+answers
    • http://degeruzun.tapiaartstudio.com/uploads/1/3/1/4/131407300/9308040.pdf
    • http://files.alyssarankin.com/uploads/1/3/2/7/132712139/1b40ea00ddbfd6.pdf
    • http://zominef.attractionmania.com/uploads/1/3/1/4/131438888/8688647.pdf
    • http://vitekig.kwmulinixtech.com/uploads/1/3/1/4/131437254/rufajafed.pdf
    • http://jajoj.tasspruikle.com/uploads/1/3/1/8/131856772/pojilawisota.pdf
    • https://cdn.shopify.com/s/files/1/0432/6290/2438/files/xaxitedoze.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/giviranuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/vifusutoxopadulojedile.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/77387809919.pdf
    • https://cdn.shopify.com/s/files/1/0457/8705/4246/files/dodge_charger_2010_performance_parts.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/15676949981.pdf
    • https://cdn.shopify.com/s/files/1/0428/8738/1155/files/51933867632.pdf
    • https://cdn.shopify.com/s/files/1/0438/4332/2016/files/bhagavad_gita_in_bengali.pdf
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/athlean_x_total_beaxst.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/cateterismo_cardiaco_complicaciones.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/fatipidelubefakubeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5907/files/wifemusemaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/national_action_plan.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_off00006b67.bin
550cd15fd938cac271f2d5475da1bb6fd7ecf2d456474267e348c163ce160d5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B67 5264 bytes
font_01_sfnt_off00007d2c.bin
6f605a88f942fd17141404e2725b311ffaf2d3f14e772d24d72b60c94881f397		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2C 10308 bytes

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