Malicious PDF — malware analysis report

Static analysis result for SHA-256 def7563611a95298…

MALICIOUS

PDF

39.8 KB Created: 2020-08-25 01:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6855f3a5a4520e71d06d071886da9b4f SHA-1: 1eef835496bb2d22f5ff8b7e528c1cd4b9885ee0 SHA-256: def7563611a95298d22b37b43fcc3008ab8bb9d590848f0918bad3d0cfefb09d
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, including one that redirects to malicious infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a lure for free templates, and the primary malicious URL is associated with a redirector. This indicates a phishing attempt designed to lead users to 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.cc/pify?keyword=templates+powerpoint+professional+free
    • http://files.bklnmanners.com/uploads/1/3/2/6/132681910/pafizarizogatutazenu.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/antologia_de_cuentos_latinoamericanos_alfaguara.pdf
    • https://cdn.shopify.com/s/files/1/0462/0812/3033/files/eve_online_starting_a_corporation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/rebefifuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gubiwunezekubukezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/alaris_pca_pump_quick_reference_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/5820/7651/files/resto_druid_bis.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0262/files/vatulava.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/fields_of_social_work.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/wuteru.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/80836117448.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/swg_legends_leveling_guide.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_off00005f6e.bin
58ef11c018b05c4bf252486bb0faf9c0c189ee1f54c7f1bd19937df7c2933eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6E 5088 bytes
font_01_sfnt_off000070b8.bin
6f0c9d02c87c1c1e1e549da90e369c05c02505447ebc386f9be43267b5b032d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B8 9932 bytes

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