Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6330a65a91148c…

MALICIOUS

PDF

46.3 KB Created: 2020-08-02 20:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a2d0d61b5af3b5687d1064e0b9127e SHA-1: 61b0eb882af74a15635a15e300c2b818a26b270c SHA-256: 9c6330a65a91148c34364eb42c7d6bde20bfd6c73d6d24ac39e6b83641e9456e
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=fl+studio+free+crack', is designed to lead users to potentially harmful content. The document also contains a large number of embedded links, many pointing to shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious content.

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.ru/pify?keyword=fl+studio+free+crack
    • http://files.thewineswirler.com/uploads/1/3/2/7/132740267/eedbc0bb9f6fd32.pdf
    • http://files.graffitishophrom.com/uploads/1/3/2/7/132741020/bofal.pdf
    • http://files.cvdogclub.com/uploads/1/3/0/8/130874205/wiriz_jomurifam_mimorofanaxe.pdf
    • http://files.westernwilcodemsclub.com/uploads/1/3/1/8/131871980/9999623.pdf
    • http://files.audioallure.com/uploads/1/3/1/1/131164402/lozexakuzetibi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/sijariranekosurusinube.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5400/files/35630131236.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/jejarovedupazagitisinas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/55864873889.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mitev.pdf
    • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/kifuroxa.pdf
    • https://cdn.shopify.com/s/files/1/0427/6443/5612/files/99212366305.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/1171802905.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/64048546764.pdf
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/8859483934.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/58167107501.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/
    • https://cdn.shopify.com/s/files/1/0432/2738/192

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077f5.bin
e1d3ea93a1185ccea50876514c0bc6b17773b149aebfe0e28e5875b5c4441454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77F5 5036 bytes
font_01_sfnt_off00008925.bin
2cb8208b8d0f8b7fe601929b315038bf664fdb59ce1f1cf605adf496d2812c9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8925 10220 bytes

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