Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4c0d5cd87598341…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 05:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55314cb6b996053ce91c137a89a169db SHA-1: fcf6f55ebe16727d0d8eabe352089a0f9db221c9 SHA-256: d4c0d5cd87598341b506a6fedfad7bc0c0c4a663e73fe8eea6b3e3aac4a607db
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=identity+theft+police+report+template'. This redirector is likely used to funnel victims to further malicious content or phishing pages. The document body, though partially corrupted, contains text related to identity theft and police reports, aligning with the malicious redirector's keyword.

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.ru/pify?keyword=identity+theft+police+report+template
    • http://files.wildflowerhills.com/uploads/1/3/2/8/132814996/somoxu-vixofowimusemid.pdf
    • http://files.nearnorthtr.com/uploads/1/3/1/1/131163533/bawinaguz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nelafujadodejofit.pdf
    • https://cdn.shopify.com/s/files/1/0433/2129/5006/files/chp_incident_report_archives.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/60536405560.pdf
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/acids_bases_and_salts_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/noguvev.pdf
    • https://cdn.shopify.com/s/files/1/0436/1669/8526/files/74643959931.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/67850163971.pdf
    • https://cdn.shopify.com/s/files/1/0439/3022/2747/files/owens_corning_duration_shingle_warranty.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/pebagumakenagipajirafoma.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/fubilijimibakevewa.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_off0000668a.bin
7a655d711529b30e1e9db81ac5265176ae72d20cd65f4089a0f28a5fe3090802		 pdf-font-stream PDF embedded font (sfnt) at offset 0x668A 5256 bytes
font_01_sfnt_off00007840.bin
aaa144563ab6e03d5853f229560efbca3b803e228e193e48490f8bfbffeb3b0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7840 10248 bytes

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