Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a07c7a4714d6c9c…

MALICIOUS

PDF

45.4 KB Created: 2020-08-07 03:14:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f0644bf897e32fa63f43d2250331685 SHA-1: 77e4e5db1f2154ccb715aa2b01128634b13e4216 SHA-256: 4a07c7a4714d6c9ce76e0a3c39ae2105326ae2504bbc37f194ede04b4415f659
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 directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=amiibo+list+pdf'. This suggests the document is designed as a link farm to distribute traffic to malicious sites. The presence of numerous links, including the malicious one, indicates a social engineering attempt to trick users into visiting potentially harmful content.

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=amiibo+list+pdf
    • http://jevade.danitzaorendain.com/uploads/1/3/1/6/131636719/fexebegevinaxi_mipaxonijumej.pdf
    • http://files.uhuruacademy.com/uploads/1/3/1/4/131407227/4700185.pdf
    • http://files.electricmoonmagazine.com/uploads/1/3/1/0/131071166/9270402.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/ge_quiet_power_3_dishwasher_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/hunger_games_free_ebook_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/43469782148.pdf
    • https://cdn.shopify.com/s/files/1/0430/8900/2653/files/15507374375.pdf
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/vehicle_blackbox_dvr_manual_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/94036421814.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/juduzonudidojibu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/jg_bar_10_upgraded.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/62753110184.pdf
    • https://cdn.shopify.com/s/files/1/0428/6896/5532/files/jibirabadozirevoreb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.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_off0000652e.bin
95ec6357ebd561f19a2d121b704025d21f553441632cc3a02bea2013af84bef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652E 5008 bytes
font_01_sfnt_off00007623.bin
5045a65b4f518ed18f2b939ad2df6f5355451b25a79906863d748b0a6c333f71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7623 16016 bytes

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