Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0dccf6d51fcda6c…

MALICIOUS

PDF

57.6 KB Created: 2020-08-15 04:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69489c205516a6b1f24da5b6c836ac97 SHA-1: 8d9815c5b0f9013576738a4fbfb78c35ac93048e SHA-256: e0dccf6d51fcda6cdb1e92548cc01ef289556489929db89ffc6cb2781920fe91
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=caida+libre+y+tiro+vertical+teoria+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify URLs, reinforcing the lure. No scripts were extracted, but the presence of a malicious redirector is sufficient to classify this as a phishing or redirection attack.

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/pify?keyword=caida+libre+y+tiro+vertical+teoria+pdf
    • http://files.sourcejuicery.com/uploads/1/3/0/8/130873822/5095126.pdf
    • https://cdn.shopify.com/s/files/1/0434/4319/1960/files/13158713457.pdf
    • https://cdn.shopify.com/s/files/1/0432/0909/7376/files/feb_2020_calendar_kalnirnay.pdf
    • https://cdn.shopify.com/s/files/1/0436/9232/7077/files/fobuxibixe.pdf
    • https://cdn.shopify.com/s/files/1/0429/1664/2975/files/raxip.pdf
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/46638712602.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/tinkers_construct_best_hammer.pdf
    • https://cdn.shopify.com/s/files/1/0433/5055/6821/files/35352844461.pdf
    • https://cdn.shopify.com/s/files/1/0435/8963/2155/files/vamezudagadanevavaselane.pdf
    • https://cdn.shopify.com/s/files/1/0439/7616/3486/files/87501899297.pdf
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/final_cut_pro_x_templates.pdf
    • https://cdn.shopify.com/s/files/1/0435/3681/0135/files/44135109343.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d39.bin
6b196d8d52c5b8cad78209cc2570a4f81160aab5f6858266f70b037eeffb9a6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D39 5176 bytes
font_01_sfnt_off00008eea.bin
fc90a74e4f99bbef431902942dac417aa75075533fb620b96ae40e6fb26d5ff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEA 16748 bytes
font_02_sfnt_off0000c242.bin
78605a24bd223425139a93e861460f1e16a895a6692c42a53a3e00372f183ae2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC242 16212 bytes

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