Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6193cc136a90a1…

MALICIOUS

PDF

40.0 KB Created: 2020-08-31 07:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c10c54b5e2d6e1d28ee7220437f61463 SHA-1: 7ad7b48f924ee4e207157e8b1702ef94eb307d11 SHA-256: 2c6193cc136a90a107064925d3854547167659dca9cf91776f5465dd6fa75060
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=call+of+the+wild+chapter+1+questions'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The document body, though partially corrupted, contains the same malicious URL and text suggesting a lure related to "Call of the wild chapter 1 questions". No scripts were extracted from this sample.

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/wix?keyword=call+of+the+wild+chapter+1+questions
    • https://cdn.shopify.com/s/files/1/0432/8397/2256/files/doxatupepukoganirivokajaj.pdf
    • https://cdn.shopify.com/s/files/1/0436/9973/2633/files/55850294617.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/50229410838.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8604/files/ssc_chsl_result_2020_tier_1_with_marks.pdf
    • https://cdn.shopify.com/s/files/1/0437/1228/2789/files/42950311504.pdf
    • https://cdn.shopify.com/s/files/1/0459/6288/7335/files/bufosowawizisijo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/down_in_the_dm_lyrics.pdf
    • https://static.usrfiles.com/ugd/b8c837_61aead6d60824e048b7a574f62f2de6a.pdf
    • https://static.usrfiles.com/ugd/225520_bf7c0f1de74041d8acfde7b534bec99f.pdf
    • https://static.usrfiles.com/ugd/0b46e6_2cc1193a33b145fda7dfd8622ce81123.pdf
    • https://static.usrfiles.com/ugd/83b1b3_892f5e4608a249618ede42fccb96578e.pdf
    • https://static.usrfiles.com/ugd/77941b_0b2c43bf0d0a46dab3d3305e0c599dc0.pdf
    • https://static.usrfiles.com/ugd/4b7290_d443b06aa4824b4c91b73c314b176224.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef6a5554ca4744a995576b1ca1b073ef.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_off0000600a.bin
b06896af22aa55a7c78b60b4ef0bcf656f27a90a99518d9a5145832f7c00d429		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 5416 bytes
font_01_sfnt_off0000728a.bin
ae4893928e3c647c550c96fdbed30a2b42e1ea462880d603423bb6c9bdd1f4c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x728A 9668 bytes

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