Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac341a666ea0850e…

MALICIOUS

PDF

44.3 KB Created: 2020-08-23 08:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c178a3d56cf98ef2d9298310482aa926 SHA-1: 62c3bb4c2ef200bd2ecbd6a2beadb5a24944e748 SHA-256: ac341a666ea0850e4779354c2b8161891d65c0c640ca7e0a5a94f2142b0a4d30
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure for a 'Spotify web player android chrome' download. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The primary malicious URL is 'https://ttraff.com/pify?keyword=spotify+web+player+android+chrome', which likely leads to further malicious content or malware download.

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.com/pify?keyword=spotify+web+player+android+chrome
    • http://ririd.drchristinebacon.com/uploads/1/3/1/6/131606923/vuzozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1704/3111/files/jefizikive.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/buzekezig.pdf
    • https://cdn.shopify.com/s/files/1/0429/8683/2035/files/lagajip.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdf
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/xipufidaritumudida.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/certificado_de_preparatoria_sep.pdf
    • https://cdn.shopify.com/s/files/1/0437/7883/4583/files/bamadaxuvotukaroxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/javemizimedewamisuga.pdf
    • https://cdn.shopify.com/s/files/1/0431/6046/9660/files/bible_quiz_questions_on_the_book_of_john.pdf
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/66854353543.pdf
    • https://cdn.shopify.com/s/files/1/0431/6630/2359/files/satufolapipidamisis.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_off00006dd0.bin
0d9adc9f080de9c66a371c80a829017ea8a57cb1c3f3ce5269804cd8a788a6da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD0 5656 bytes
font_01_sfnt_off000080e7.bin
87d2610f4dcaffeb2b70820962b73fb282a53637a1deb543d43054b07687c886		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E7 10460 bytes

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