Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae31a3447363f3f…

MALICIOUS

PDF

48.8 KB Created: 2020-08-25 23:01:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e0b9102c5f3929e96b0e3d0f3f7893e SHA-1: 07a64cc5add4280ca50fa34cc92146a503cc1c7d SHA-256: aae31a3447363f3f74371a18f765c7f5fa66a305658c32e3f181b61452436061
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, specifically pointing to 'https://ttraff.com/pify?keyword=boxster+buying+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The document body, though partially corrupted, contains text related to a 'Boxster buying guide' and the malicious URL, suggesting a lure to a phishing or malware distribution site.

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=boxster+buying+guide
    • http://zuzixo.bushleysbeauties.com/uploads/1/3/0/7/130739967/xoladilir.pdf
    • http://files.walkwithremi.com/uploads/1/3/2/6/132696030/tizosipadunu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/32214181258.pdf
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/zunudovuwuxakuzemuvogol.pdf
    • https://cdn.shopify.com/s/files/1/0436/5228/4566/files/acca_f1_revision_kit_bpp.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/apc_back_ups_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5540/6494/files/tijeborinuvibinixeruwi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/jubujifojovesafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/robire.pdf
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/architecting_cloud_computing_solutions_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6667/7655/files/66801300145.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/beps_action_5_final_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/6949/5710/files/change_currency_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/renojunerarem.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_off0000827e.bin
0d9ed2491c2fd3ef566eea18bde907c78e724cf3158033a371c1d452486bb009		 pdf-font-stream PDF embedded font (sfnt) at offset 0x827E 5108 bytes
font_01_sfnt_off000093f7.bin
476f5b26ae599b17bf06cd385ffa0c359647f049d0c36a8f387fbf98735eea96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93F7 10192 bytes

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