Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0d6b8c18004a956…

MALICIOUS

PDF

44.0 KB Created: 2020-09-12 17:47:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c11cf85962da2d95a57784af1f6dc524 SHA-1: 2ffd0ef8d3ccd2caa51124b768565a6b221d9e15 SHA-256: a0d6b8c18004a95689bc5efd62a523b8f108bc45b1b48320c57877db2f1007fb
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=karni+padi+badmashi+song++md+kd'. The document body also contains this URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous external PDF links, including one to a Shopify domain. The ML classifier strongly flagged this PDF as malicious.

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.me/wix?keyword=karni+padi+badmashi+song++md+kd
    • http://files.spencerportta.org/uploads/1/3/0/7/130775129/343d4.pdf
    • http://files.wonderfullymadebirthdoula.com/uploads/1/3/1/8/131871717/latugiz.pdf
    • https://static.usrfile
    • https://cdn.shopify.com/s/files/1/0431/1282/4986/files/law_of_attraction_the_secret_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/wipusopanun.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/ritedijizeruxexurofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/16456154474.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8103/files/konica_minolta_bizhub_c368_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/0032/2458/files/balkar_ankhila_all_album_free.pdf
    • https://static.usrfiles.com/ugd/be19e1_65bba435132440e2a65770d62f209b6b.pdf
    • https://static.usrfiles.com/ugd/b8c837_56a93c25b40a4abdb5888578d90f060e.pdf
    • https://static.usrfiles.com/ugd/d31907_94bf4def3cc2406692b7f131bb593d79.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_off00006061.bin
d9ce747ba780ee790a4f04437b72eba8c325b527d23a26a37e9d29bdb3400fad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6061 5516 bytes
font_01_sfnt_off000072ee.bin
06517a0cb414e6fd933e989400d1e798c9bd8bd622b6c80abc9ee328933dd7f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72EE 15176 bytes

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