Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df36a84f34293a4…

MALICIOUS

PDF

45.9 KB Created: 2020-08-26 02:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88ed967b3d4318dcba67794d1e14f36d SHA-1: f7cc4dcf6ef39c7d8cd7df371045a9ddb543c262 SHA-256: 2df36a84f34293a47accb97cf145c5b17dd855a552224ed33a2be360145bf424
128 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, also contains the malicious URL. This suggests a link farm or redirection attack designed to obscure the ultimate destination and potentially lead users to malicious content or phishing sites.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/pify?keyword=kev+nair+english+fluency+pdf
    • http://mufigo.romancatholicgoodnews.com/uploads/1/3/1/4/131453028/7308767.pdf
    • https://cdn.shopify.com/s/files/1/0434/0177/3212/files/79300378472.pdf
    • https://cdn.shopify.com/s/files/1/0438/4319/0944/files/reforma_estufa_jardim_botanico_curitiba.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/vekajusiduligo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5251/4979/files/system_for_ophthalmic_dispensing.pdf
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/adaptability_examples_for_performance_review.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/cleaning_proposal_template_uk.pdf
    • https://cdn.shopify.com/s/files/1/0428/6890/0006/files/20715052490.pdf
    • https://cdn.shopify.com/s/files/1/0431/2943/8370/files/gufuzikosasemivigoba.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7494/files/alexa_won_t_connect_to_wifi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/xakiz.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_off0000742c.bin
a357dd84a5c04684b34f78fd1d3c711711a3de48248ec2dc5f7ed6f6dbe6e6e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x742C 5548 bytes
font_01_sfnt_off00008715.bin
76737b7ab4ab7de9da6f699008e4cc5885d7f11aedd9c5d8d69240377c656db8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8715 10600 bytes