Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6d6183fbfa10d10…

MALICIOUS

PDF

50.1 KB Created: 2020-08-14 01:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7079195fda0e40573025ab00a8aa47db SHA-1: 126c2c43a8c45bc6b4a0453f3f8eee7033f8de32 SHA-256: a6d6183fbfa10d1081a0da832431906e4ddc0a41895872cd684184312aa3d277
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=flyers+templates+psd+free'. This indicates a phishing or scam attempt, using the guise of free templates to drive traffic to a malicious site. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its role as a lure.

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=flyers+templates+psd+free
    • http://files.dagriffincircuit.org/uploads/1/3/1/4/131437636/suwuwobikef.pdf
    • http://files.niosha.com/uploads/1/3/1/6/131637374/padodotugum.pdf
    • http://files.wellnessforlongislandnurses.com/uploads/1/3/2/7/132712334/2413900.pdf
    • http://files.balloonraces.com/uploads/1/3/2/6/132695575/1e46c2a22178.pdf
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/duboxojat.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/wbcs_anthropology_optional_syllabus_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/dilutotugatiwaxinavasunu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/affective_normative_and_continuance_commitment.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/vusafosokuxe.pdf
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/kagokakeseroluxutevex.pdf
    • https://cdn.shopify.com/s/files/1/0439/6436/7006/files/2754741815.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/63955870502.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/66293092522.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3370/files/read_n_characters_given_read4.pdf
    • https://cdn.shopify.com/s/files/1/0432/0968/7208/files/jolemorutapofezuxefimutip.pdf
    • https://cdn.shopify.com/s/files/1/0438/3450/7426/files/checklist_formatos_mantenimiento_excel.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_off000086af.bin
c49380a19f68b07a090edda178e7c3af2a72fa5b4cc17694b56a3d49281602b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86AF 5244 bytes
font_01_sfnt_off00009875.bin
267c704762caf1f669e6c3a6e5a4b8e0b40193d249be360a7ad80e45a6bf8813		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9875 10224 bytes

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