Malicious PDF — malware analysis report

Static analysis result for SHA-256 262a2f72e4258c40…

MALICIOUS

PDF

45.2 KB Created: 2020-08-10 00:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 771c90fdc5550c503982746cf7738a90 SHA-1: bd30f1ef5d6ad0be7b11a7228b37e8acdd92459f SHA-256: 262a2f72e4258c40e5a216e376357140566ade239cbca6d8468bb5e071aeb065
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which are SEO-optimized and point to Shopify domains, suggesting a link farm or content stuffing technique. One prominent link, disguised as a free ebook download, redirects to a known malicious redirector URL. This indicates a social engineering attempt to drive traffic to malicious infrastructure.

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.ru/pify?keyword=essential+oil+safety+robert+tisserand+pdf+free+download
    • http://files.lilysparkles.co.uk/uploads/1/3/0/8/130874370/lulubuveganan.pdf
    • http://files.redcliffemusicaltheatre.com/uploads/1/3/1/6/131637701/a0bc413c31b5f9.pdf
    • http://files.millersaddlesandsilver.com/uploads/1/3/0/7/130740118/4822028.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/wimusokefodilajapixexe.pdf
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/adjectives_word_formation_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdf
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/harvest_moon_gba_rom.pdf
    • https://cdn.shopify.com/s/files/1/0430/8333/3786/files/96258600853.pdf
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/97635118779.pdf
    • https://cdn.shopify.com/s/files/1/0429/0081/6028/files/fall_leaves_border.pdf
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/vebibafivudevu.pdf
    • https://cdn.shopify.com/s/files/1/0448/5762/2689/files/transparent_hex_code.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8802/files/23310436748.pdf
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/jepowofoverutumel.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_off0000713a.bin
adc72c8fb2d02a4ce24cb8464fb1630d1aa83700927305166aea9ff56c982541		 pdf-font-stream PDF embedded font (sfnt) at offset 0x713A 5328 bytes
font_01_sfnt_off0000837e.bin
ad3ee9c900cd631fc33ea158bde19d1242ab5b03c74c3eb5039ab39cd7f3f536		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837E 10540 bytes

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