Malicious PDF — malware analysis report

Static analysis result for SHA-256 50ee477536c8759b…

MALICIOUS

PDF

67.2 KB Created: 2020-09-11 18:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90407c0c3813e36cddd6710f95be6fab SHA-1: d1ac5af609d8f11591a319e817ee6b64086e0772 SHA-256: 50ee477536c8759badad4c639296e47fbe5f20a5bff86893896396bb39bf0293
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of embedded links, many of which point to external PDF files, indicating a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.link/wix?keyword=seventh+day+adventist+church+history+pdf`, which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, contains text related to 'seventh day adventist church history pdf' and the wkhtmltopdf generator, suggesting a lure to disguise the malicious intent.

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.link/wix?keyword=seventh+day+adventist+church+history+pdf
    • http://files.edsolutionsofcharlotte.com/uploads/1/3/0/7/130775511/novoxugulemeli.pdf
    • http://padupi.prestige-yachting.com/uploads/1/3/2/6/132695832/a63c548.pdf
    • http://files.promanchesterdigitalmarketing.co.uk/uploads/1/3/1/1/131164557/2971142.pdf
    • http://detaferon.midwest-healingcbdmassagestudio.com/uploads/1/3/0/7/130739006/6f14c1.pdf
    • http://bunonuj.makariosinternational.org/uploads/1/3/0/7/130775075/1056385.pdf
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/95828273924.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6068/files/aimbot_apk_call_of_duty_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0432/8515/1910/files/76068538082.pdf
    • https://cdn.shopify.com/s/files/1/0458/1071/2742/files/bollywood_party_songs_2018_playlist.pdf
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/19016907140.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/default_httpd_conf.pdf
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/45580591089.pdf
    • https://cdn.shopify.com/s/files/1/0434/3955/4727/files/blitzed_robert_swindells.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/
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/9582827

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca1a.bin
345f51427dcc251609ab05e955b2e75d43c1be6c2abfe174f826d987fff53a0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1A 5476 bytes
font_01_sfnt_off0000dcc3.bin
ee6dce9405881377a12c486fa2c24ff3b0f6d1b3f1e04c8087f834ab827d9b8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC3 10244 bytes

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