Malicious PDF — malware analysis report

Static analysis result for SHA-256 87fcc27cb29c30fd…

MALICIOUS

PDF

34.9 KB Created: 2020-08-19 23:09:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f8d9a2c98487e20dd6892dc531f151f SHA-1: 2adf6639197469d65020850db1ccd9bdcaa25b0c SHA-256: 87fcc27cb29c30fd2dad7c816b3cb2d2939fb2dfa861c510de1a2d27762da1b7
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, includes the URL 'https://ttraff.com/pify?keyword=batim+can%2527+t+be+erased', suggesting a phishing or malware delivery attempt. The presence of a PDF link farm further supports the malicious intent of redirecting users to potentially harmful content.

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=batim+can%2527+t+be+erased
    • http://giwajegi.spacecityflyco.com/uploads/1/3/1/4/131452937/7387088.pdf
    • http://files.chaikalevar4greenertoronto.ca/uploads/1/3/1/1/131164009/0edeba.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/66730156833.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/76191962194.pdf
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/91577334366.pdf
    • https://cdn.shopify.com/s/files/1/0439/5725/6350/files/50181836207.pdf
    • https://cdn.shopify.com/s/files/1/0437/7572/1629/files/31513232145.pdf
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/airfix_model_world_june_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/7005585390.pdf
    • https://cdn.shopify.com/s/files/1/0430/9336/0791/files/54604252565.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/webow.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/77747387559.pdf
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/gunomegap.pdf
    • https://cdn.shopify.com/s/files/1/0430/8067/9577/files/88684896723.pdf
    • https://cdn.shopify.com/s/files/1/0435/5565/1743/files/portfolio_template_canva.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_off00004b3d.bin
2f2a3eeb2fad2e628f8ea538cd5691fbd458bc3f7b20fb140dfe6f6f36129f5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3D 5276 bytes
font_01_sfnt_off00005d0b.bin
710ae3f389efc1cab479d7ae88d419c70016964e56a7985dafbde3d06f18cf9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0B 9928 bytes

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