Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d62a5bf4f170cb…

MALICIOUS

PDF

44.5 KB Created: 2020-08-14 11:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3febebe02fde4257136ae34affe46223 SHA-1: 0d79f3dc52e47fb0341f81e5afea30da592b53fe SHA-256: 32d62a5bf4f170cbbf0a4156077cf5b604383992ba82abb1c209addb50a90f21
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This indicates a link farm or redirection attack designed to lure users to malicious infrastructure. The document body itself is heavily obfuscated and contains the primary malicious URL.

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=harmonic+oscillator+wave+function+pdf
    • http://files.vankleekhillnaturesociety.org/uploads/1/3/1/4/131408056/xezeni_fiberamul.pdf
    • http://vigajego.mountainsportandfitness.com/uploads/1/3/1/4/131408738/8782255.pdf
    • http://files.eccrotherham.org/uploads/1/3/1/4/131455141/2e1d92a1423518.pdf
    • http://files.dpsecurity.co.uk/uploads/1/3/0/7/130739081/8340b3a6c6105.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/90895794844.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2556/files/biology_sinhala_notes_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/0235/6127/files/kefazuter.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/bucher_reisen_agb.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/39508126125.pdf
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/69113463054.pdf
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/aadhar_card_form_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/mapa_turismo_bilbao.pdf
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/ffmpeg_convert_mkv_to_mov.pdf
    • https://cdn.shopify.com/s/files/1/0453/3600/2715/files/meteora_greece_tourist_information.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/multiple_regression_analysis_definition.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_off000066a2.bin
a44ec506d863f5e3b1bda359667dafd36e0ce4fb3764c10d7e1d852ba4cd781e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A2 5412 bytes
font_01_sfnt_off00007905.bin
d9c39a914c95174f005cbc4bcb1aa688d4e003feca084dc0867ca1b9294521fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7905 13888 bytes

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