Malicious PDF — malware analysis report

Static analysis result for SHA-256 da01fbebc43283c3…

MALICIOUS

PDF

43.6 KB Created: 2020-08-13 13:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a702144efcae3f5389b2b3666da7c52d SHA-1: 9b898f8456d58ebf99b1ed525208ea2d99e92010 SHA-256: da01fbebc43283c3bc02c100779ebe733f0bc9efcf69669f16d6efa2aec9837b
150 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a lure to trick users into clicking on malicious links, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=baidyanath+ayurvedic+medicine+list+pdf
    • http://verexag.pinsharpmarketing.co.uk/uploads/1/3/0/7/130739573/3838849.pdf
    • http://files.eurasiandebate.com/uploads/1/3/1/4/131483147/lamojasap-duveziz-wakinux-povexosuxisoli.pdf
    • http://files.msckylesportsforspecialneeds.com/uploads/1/3/2/3/132302710/e857b899c8.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/75560887920.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/catholic_social_teaching_textbook_saint_mary_press.pdf
    • https://cdn.shopify.com/s/files/1/0432/8833/0396/files/xosatawepete.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/tokagajofigemoridedurit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/anova_estatistica.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72274594547.pdf
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/definition_of_communication_by_scholars.pdf
    • https://cdn.shopify.com/s/files/1/0429/8289/9871/files/bolugefizaze.pdf
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/kho_kho_score_sheet_files.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/kapur.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_off000056cb.bin
cbe5030da3cd67c2274d7ebe9ac48324b101b7d492c669e270f572c62023d2a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56CB 5608 bytes
font_01_sfnt_off000069b7.bin
7b79f34c26b69d794d6eb57496b4462246678e75471da0c73fbb9d28296329e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B7 10436 bytes
font_02_sfnt_off00008dc2.bin
3ed17fa1fbd70a37f2a665916ed9bf6165f706cfc5db5b7014a41518b74b7560		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC2 5172 bytes

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