Malicious PDF — malware analysis report

Static analysis result for SHA-256 2010d9fe745d0328…

MALICIOUS

PDF

39.3 KB Created: 2020-09-02 02:38:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4893306915a283e2fd15639875887681 SHA-1: d3e4da11836b6c61ce23202538f65fce476e5abe SHA-256: 2010d9fe745d03289a1fb2082d3d32c4f1e06ce978a3464bd0b9c0b94e0a0f43
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF documents, a technique often used for SEO poisoning or to obscure malicious activity. One of these links, found in the document body and flagged by heuristics, redirects to a known malicious URL. This suggests the document is part of a campaign to lure users to malicious sites, potentially for phishing or malware distribution.

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.cc/wix?keyword=picsart+premium+apkmos
    • https://cdn.shopify.com/s/files/1/0430/6518/0321/files/balance_sheet_liabilities_order.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3764/files/vanilla_wow_blacksmithing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/linkedin_for_personal_branding_the_ultimate_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3616/files/3158898032.pdf
    • https://cdn.shopify.com/s/files/1/0437/8443/7922/files/whatsapp_video_free_funny.pdf
    • https://static.usrfiles.com/ugd/b8c837_d01c2263745f421caa30d754d1a999cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_9457d1d0d431470e8844057789c5ded9.pdf
    • https://cdn.shopify.com/s/files/1/0430/9539/2409/files/magazine_design_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/aguila_dorada_bis_horarios_formosa_posadas.pdf
    • https://cdn.shopify.com/s/files/1/0429/3296/1439/files/jagupixovitogimowinavodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7244/5854/files/94260430640.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_off00005e08.bin
fc96b209785c722ab2c623c55852770983e050c6e527af93e64a578c75ae9b58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E08 5112 bytes
font_01_sfnt_off00006f59.bin
4f796a99a27094bf54707dd9747dcd8fe2ed888499cc6f30711e9e82b1175a26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F59 9864 bytes

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