Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0f1685a5a1fe842…

MALICIOUS

PDF

39.7 KB Created: 2020-08-30 02:18:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67dbc06d2b2b98b3de619a4dbc8125ee SHA-1: 3ffac6854adb66d5b920d413ead49a86492402cd SHA-256: a0f1685a5a1fe842f5a31b97da0812d53a992fc1dee3f194e06942dc1767f3b9
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a malicious redirector. This redirector, 'https://ttraff.cc/wix?keyword=wrath+and+glory+starter+set', is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to attract users. The primary attack vector appears to be social engineering through a deceptive link.

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/wix?keyword=wrath+and+glory+starter+set
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/mixed_articles_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/candidiase_intestinal_tratamento.pdf
    • https://cdn.shopify.com/s/files/1/0435/4159/4266/files/mymathlab_contemporary_math_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/dexunopavakisagiredel.pdf
    • https://static.usrfiles.com/ugd/3aee12_bb56af217f2c487c99d4923eb8c3b31a.pdf
    • https://static.usrfiles.com/ugd/097bd5_bfb7c5d1c9a64e6d8b720e2859d7003c.pdf
    • https://static.usrfiles.com/ugd/06497e_6d8d179e7b824757843e3215b820d5f3.pdf
    • https://static.usrfiles.com/ugd/3fc21f_fdf70efb203a45d68c5622c07aaee2a5.pdf
    • https://static.usrfiles.com/ugd/34e21e_0b9d7f8afc5248088237326096833e73.pdf
    • https://static.usrfiles.com/ugd/756799_57ece9941e35479583228e6e29f58994.pdf
    • https://static.usrfiles.com/ugd/b8c837_bca5ef35811e4952ba6251077e5a66e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_55e7767d0cdd483a97363b0b4daa3e13.pdf
    • https://static.usrfiles.com/ugd/b8c837_409c019efa9f4aa28a7a617c0d06b294.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_off00005e41.bin
384e358f54739051ba52dc4823919ef0741da96896df5303e50f1d15c1be75cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E41 5204 bytes
font_01_sfnt_off00006ff5.bin
9abe7b6c0403eaecd6f88daa40da57b8ffcf7121501feeb05afd72d61e20b002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF5 10212 bytes

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