Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce54608f0b7a9ee3…

MALICIOUS

PDF

44.1 KB Created: 2020-08-29 23:24:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65b7023cc849945c2a477140107d77b8 SHA-1: 2076c4a0794e899dccd9bcf043ed46744aa78acf SHA-256: ce54608f0b7a9ee37087b6f76bd950a3616c72d0b062befb0e1389e3ef56cf38
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure, specifically mentioning a product. The presence of numerous embedded links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute the malicious URL. The primary malicious IOC is the redirector 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/wix?keyword=roger+black+recumbent+exercise+bike
    • https://cdn.shopify.com/s/files/1/0437/5874/7800/files/angular_6_by_example_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/7909/6728/files/educating_all_students_test.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/building_construction_illustrated_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/nrp_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/1264139224.pdf
    • https://static.usrfiles.com/ugd/b8c837_8c369762975a41ddad84b8131cc23851.pdf
    • https://static.usrfiles.com/ugd/7ff653_1b9481eb03cd45118482799cee37558a.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a844f21c1624ec0968bceebf0a1ccdb.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ca358ea2fed4f7693b496e12254660e.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a102dd05cd640c09c166b36a8101432.pdf
    • https://static.usrfiles.com/ugd/b8c837_aadb38ffb99442bab22c92120aec1acd.pdf
    • https://static.usrfiles.com/ugd/b8c837_404531e346b44571b85ab469ac98a2ca.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ae48edabf42431f82e015024c6b0086.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_off00006df1.bin
436633133f5ab9cce3069efce00e4fd4b72aa9972443db756ac236012d07afa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF1 5400 bytes
font_01_sfnt_off00008046.bin
4e6ce6635c384a2a017c9b91abb1e1cda425583882137757b4f2e1f1ed947b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8046 10468 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.