Malicious PDF — malware analysis report

Static analysis result for SHA-256 87fadaa9529f393e…

MALICIOUS

PDF

39.6 KB Created: 2020-09-19 12:15:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 709985436ef42d41193316fdb5785ee7 SHA-1: 4bdc0d57be3200ea83519126840d8eb697f1481b SHA-256: 87fadaa9529f393e5b4513a691acdad39b24569145cf03ff1219454bc0740c4a
120 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.club/wix?keyword=manual+to+automatic+transmission+conversion+kit+india'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to a Shopify domain. The document body, though heavily obfuscated, contains references to the redirector URL and appears to be a lure for users interested in car transmission conversion kits.

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.club/wix?keyword=manual+to+automatic+transmission+conversion+kit+india
    • http://files.bfhaircollection.com/uploads/1/3/1/8/131871740/fevanireda_xizoxadexovu_lafuzapakubi_puzebaleloxa.pdf
    • http://files.delavinadesignsco.com/uploads/1/3/1/4/131407530/e95cec0.pdf
    • http://fevitefus.travevolution.com/uploads/1/3/1/4/131407370/9df89fbe63c7d28.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0798/files/cost_of_samsung_galaxy_s6.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/law_of_reflection_physics.pdf
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/proform_505_cst_treadmill_manual.pdf
    • https://01996c94-7bb7-4c50-9f5a-6680bf1e7d6a.filesusr.com/ugd/bfbc46_92b1c27b04b04025898e78a8b825a4fa.pdf?index=true
    • https://33c80f2b-0aa2-45b9-8ac4-8933e1a51095.filesusr.com/ugd/3fc21f_7400665c113a4cd5a95ffb4a68e1823a.pdf?index=true
    • https://1e3c3633-038b-4054-9150-f71a827dc7b8.filesusr.com/ugd/8a419d_9d5a4ce400e043189d854c9e23502808.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/compound_complex_sentence_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0452/2262/5431/files/damodarastakam_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/makogupitenebi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1363/6259/files/tch_trang_file_online.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_off00005d49.bin
cf16d5b1fde552829f13123639ee546dd5a8e8a5470e1547bd4d43148d166f1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D49 5212 bytes
font_01_sfnt_off00006eff.bin
8f483a30456ab67741568993654315f58b7615ff553592e4c4ddd2ff6c095679		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFF 10088 bytes

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