Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf201a466f95c7a4…

MALICIOUS

PDF

42.9 KB Created: 2020-08-25 11:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5868bdfd9e7c1bd392ac2f4bacb9af53 SHA-1: 54c48fedabf0d9a54910ad757ca87dcf2940cdc2 SHA-256: bf201a466f95c7a46b67ba183dc30341c77bdc286307a2bdf83fb65345f5db86
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=5th+avenue+new+york+shopping+guide'. This URL is embedded within the document body, which is presented as a shopping guide, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, some of which are hosted on potentially suspicious domains.

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=5th+avenue+new+york+shopping+guide
    • http://gefusak.carpetcleaninghuntsville.com/uploads/1/3/1/6/131606490/renekomuponar.pdf
    • http://zoxenizut.bohproject.com/uploads/1/3/0/8/130874493/4675512.pdf
    • https://cdn.shopify.com/s/files/1/0431/9700/5981/files/vabinodizidisidutelalaja.pdf
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/74238387758.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4241/files/optiplex_780_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0431/9097/6673/files/fabevujimosogupu.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/70042867578.pdf
    • https://cdn.shopify.com/s/files/1/0434/2946/2177/files/reasoning_book_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/xokibokezutanisomukexuded.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_off00006849.bin
02f770df09bc6e704bf9f4e09cee2a0fb10aeea2ab9ca1ddb4315e37cffd9f29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6849 5536 bytes
font_01_sfnt_off00007b31.bin
907e07c1dc005e14399a40c8363819a9440495c8b17ecfa82bd043be19edcd36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B31 10572 bytes

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