Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d813f19b1b8a85e…

MALICIOUS

PDF

35.8 KB Created: 2020-09-16 15:03:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514fe6efb2ee16a9944b2a2eabd28ff5 SHA-1: 24dc1c76455c59cc91418c608d98b855deb9cab0 SHA-256: 2d813f19b1b8a85ef512745649c6b2ad90a4237961ea4f97c7afaeb61abb0293
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a search result for a vehicle owner's manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the embedded URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm designed to manipulate search engine results, further supporting the lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=2010+vw+cc+owners+manual+pdf
    • https://6b99b4df-84a4-4a15-a94f-ccb897a57d73.filesusr.com/ugd/8e6e76_489773fc645948519d96b34849ce9643.pdf?index=true
    • https://4006ebd7-0010-4080-919f-1cc5365ee846.filesusr.com/ugd/035627_9d2863f77e914785897ce6c50f4b0f65.pdf?index=true
    • https://bee4ac06-291f-441f-bb81-a403a65caeb5.filesusr.com/ugd/d2759c_f25156541dbd4e33bfec42cceb2c5e96.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdf
    • https://cdn.shopify.com/s/files/1/0434/8264/4642/files/7940789776.pdf
    • https://cdn.shopify.com/s/files/1/0438/7281/3211/files/94520661401.pdf
    • https://77b5f2d6-aed7-4152-88ec-cd44ace5630e.filesusr.com/ugd/3e7897_c314031c8e574dc99400c77bfd5b345b.pdf?index=true
    • https://8233dc66-9929-4b18-a290-1dc3b8d8e69a.filesusr.com/ugd/c4f63d_cd71d973d370499ba4fc26c0c4723f82.pdf?index=true
    • https://05d9e9bd-849c-4b34-88d7-c86bdd26ece3.filesusr.com/ugd/e948c1_4ea34beae228496386706beb74273769.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0464/6843/2040/files/butyl_formate_lewis_structure.pdf
    • https://cdn.shopify.com/s/files/1/0432/4596/1383/files/96129414036.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_off00004bc4.bin
4c96efafbcceea8b3fca59e0799baa0967ac7bab80ab9dce7c44a9bbfeccb2f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC4 5684 bytes
font_01_sfnt_off00005f1e.bin
03e60af6a25f45548fe05f5dfe29f11815a17bf0f53d4322c26bcc4516cc0827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1E 10496 bytes

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