Malicious PDF — malware analysis report

Static analysis result for SHA-256 28254e1a82b47977…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 01:58:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71de15231957350fbf9f284f279d3184 SHA-1: d6ea1e6caebed1dddb148dcd8f9a391d80688379 SHA-256: 28254e1a82b47977bf29e36d7ae4b9204b21c0b697a3458c3d09ae1acbcf0529
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com. This domain is part of a link farm designed to lure users into clicking on seemingly benign content, such as a lab report, which then leads to further malicious destinations. The document body, though heavily obfuscated, contains the target URL and other Shopify links, suggesting a content-luring tactic.

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=plant+pigment+chromatography+lab+report
    • http://files.caryndahm.com/uploads/1/3/0/9/130969477/lakowunofakuwix.pdf
    • http://files.eminiedge.com/uploads/1/3/0/8/130874305/ragudobisij.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/sudakivot.pdf
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/fovobuwodazovaruxan.pdf
    • https://cdn.shopify.com/s/files/1/0431/1157/9809/files/rajekajiboguxikixumizobon.pdf
    • https://cdn.shopify.com/s/files/1/0433/4764/0469/files/gavotte_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0444/4736/7335/files/body_systems_webquest_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0440/4376/3862/files/77853830718.pdf
    • https://cdn.shopify.com/s/files/1/0434/6193/5261/files/walmart_minecraft_cakes.pdf
    • https://cdn.shopify.com/s/files/1/0438/0780/1501/files/patofisiologi_psoriasis_vulgaris.pdf
    • https://cdn.shopify.com/s/files/1/0438/0760/4896/files/45552826882.pdf
    • https://cdn.shopify.com/s/files/1/0432/2803/7287/files/vivaldi_summer_violin.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_off00006768.bin
8ced8f39f566d6181fe7e133c4b9cd60f10e12c92073bcf9b3a77bb75a340ca4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6768 5412 bytes
font_01_sfnt_off000079a5.bin
ff98af7fd48d9b9e389c2935700a4dd807acfc380f19c0f690ee487b7d2d6e0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 9732 bytes

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