Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64282b0c107de5d…

MALICIOUS

PDF

39.6 KB Created: 2020-08-31 04:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b111971f8a7acf1228633546f0090032 SHA-1: 0d948248cae0d5df34745d74d3e9d38846358bc9 SHA-256: f64282b0c107de5de0fe19db26bc6f43b155e0b5b02c04a7384593edeeaaf3c0
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Star Wars trading cards price guide' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF also hosts a large number of external links, many pointing to Shopify, likely as part of a link farm to improve SEO for the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=star+wars+trading+cards+price+guide
    • https://cdn.shopify.com/s/files/1/0432/4465/0651/files/palowisari.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/adventures_of_sherlock_holmes_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2687/files/laniruramawukebulet.pdf
    • https://static.usrfiles.com/ugd/804ff6_2d75db1768cc44e9bd3cb3cb098beab6.pdf
    • https://static.usrfiles.com/ugd/5d2cf3_ed0d0ce2a2cf4b66894f921c416f04e4.pdf
    • https://static.usrfiles.com/ugd/b8c837_57eff7dfa5f346dda08bec84b997b975.pdf
    • https://static.usrfiles.com/ugd/a1fb72_b92c6c7a48f34aedaa935459d236e216.pdf
    • https://static.usrfiles.com/ugd/429b25_45d694b8bc314e7eae45a83451eda5ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_16f109af16784a0ba3310f4d05027548.pdf
    • https://static.usrfiles.com/ugd/20d83a_212f58864afa4ad0ae2c4a13f613f4f1.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/8875013780.pdf
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/70394677546.pdf
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/65288774323.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_off0000547c.bin
372b46d25e27d5731382d5815da696c0243b19c04e0708f44106432d3f432f14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x547C 5404 bytes
font_01_sfnt_off000066f3.bin
23e91642eac3656d8325421f65e4a19c08fa91894b152f81de951ed9efa5482f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F3 13588 bytes

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