Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec072e82d5a57d88…

MALICIOUS

PDF

42.0 KB Created: 2020-08-06 03:34:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a023c904b277a74406e0702080db73e SHA-1: 4fe4ee4055ccd016ebc0a5b3d222ac40d9766123 SHA-256: ec072e82d5a57d8829af394734552dc8e7dfad3e4bad298699c40742c43babd2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a mass external link farm, with many links pointing to benign content on Shopify, but one critical link redirects to known malicious infrastructure via ttraff.com. This suggests the document's primary purpose is to lure users to malicious sites. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious redirection attack pattern.

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=blood+pressure+definition+pdf
    • http://files.his-info.com/uploads/1/3/1/4/131454355/naxed-pefog-kiriraweza-dinetavorovi.pdf
    • http://files.taxcorestaurantpv.com/uploads/1/3/1/4/131438308/5147613.pdf
    • http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdf
    • http://files.henrydai.net/uploads/1/3/1/3/131383934/jepupi.pdf
    • http://files.roothousemuseum.com/uploads/1/3/1/4/131483267/zajuweduluv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/how_to_find_facebook_url.pdf
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/professional_recommendation_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/61405202572.pdf
    • https://cdn.shopify.com/s/files/1/0446/7628/4569/files/shri_durga_argala_stotram.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/37558586101.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/dagufatunoxijinixunabeje.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90554838216.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/an_image_of_africa_racism_in_heart_of_darkness.pdf
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/xupexaroranabazizunepa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/jamunox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62856854762.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_off000066a8.bin
8c0b7e906c08b00d04b446bff55be91322b8a18e75abbfac634177d0a14c3536		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A8 4876 bytes
font_01_sfnt_off00007751.bin
011d85ecd425f4d5b92e96db7a97fa9d758d1951895063356ce76c86f081c7e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7751 10484 bytes

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