Malicious PDF — malware analysis report

Static analysis result for SHA-256 4136eeb4f49f5057…

MALICIOUS

PDF

41.3 KB Created: 2020-08-16 00:59:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 695c0683a529f7c9abf7fb20c482e8c5 SHA-1: 28cb17439418964da617d70a6382da4e01cc71de SHA-256: 4136eeb4f49f505771ae6cc2eb331893c476f703d8c14aaa253a3da1f826375f
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, pointing to ttraff.com. The document body also contains text related to converting PDF to DOCX and includes the same malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed for SEO manipulation to attract unsuspecting users.

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/wb?keyword=convertir%20pdf%20en%20docx%20gratuit%20en%20ligne
    • http://files.jerseyguidedtours.net/uploads/1/3/1/3/131382092/7825424.pdf
    • http://sazoti.sweeteststills.com/uploads/1/3/0/8/130814297/4ec11.pdf
    • http://files.samanthaamatoportfolio.com/uploads/1/3/0/7/130738792/ff795e7197291.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7472/files/wuxevodopukowufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/nizudes.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/mofuvibovapatutuxidi.pdf
    • https://cdn.shopify.com/s/files/1/0440/2751/0934/files/7676330352.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/jibedap.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/fafedunolixuwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4127/5547/files/arkham_horror_card_game_rules_reference.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/origin_and_development_of_buddhism.pdf
    • https://cdn.shopify.com/s/files/1/0437/1713/2456/files/1931716622.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8285/files/75718433997.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/11020384673.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005347.bin
e9a0c0d3a8990892280dd344e6221bce475b98af6d87f0392c6bc6750be7efbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5347 5176 bytes
font_01_sfnt_off000064ff.bin
673538b78414329cff15c16f216ec6b68753403f7c9db17996866bfb23c7135d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64FF 11004 bytes
font_02_sfnt_off0000888d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x888D 4324 bytes

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