Malicious PDF — malware analysis report

Static analysis result for SHA-256 348fdf3c4802d423…

MALICIOUS

PDF

40.5 KB Created: 2020-08-31 13:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 413d093cb0cd71259abd4ad3868f1417 SHA-1: 045bd3219812b0684d014f1772cdca55e11ff0c6 SHA-256: 348fdf3c4802d423ba731addc13451f4d4d29b9b50f074cb7a74a63f4a49e361
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a vehicle owner's manual. The document body, though heavily obfuscated, contains the URL and references to 'wkhtmltopdf', suggesting it was generated programmatically. The presence of a link farm heuristic further indicates a malicious intent to drive traffic to potentially harmful sites.

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=2013+honda+cb500x+owner%2527+s+manual
    • https://static.usrfiles.com/ugd/b4a829_9c23cedd1d334a4895cd51aa11253f17.pdf
    • https://static.usrfiles.com/ugd/b8c837_03bb5753474e47d880010b5f37b57099.pdf
    • https://static.usrfiles.com/ugd/5360f8_4b71f41d753045f9882f36e827448948.pdf
    • https://static.usrfiles.com/ugd/0bcf16_ec2cf577817942edb11ac58035e790f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_62e9944362b448d381a9bce733d3be2d.pdf
    • https://cdn.shopify.com/s/files/1/0429/6992/3740/files/the_college_panda_act_math.pdf
    • https://cdn.shopify.com/s/files/1/0434/5679/0695/files/ashfield_girls_high_school_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/pajevi.pdf
    • https://static.usrfiles.com/ugd/e3ff21_8674af98040e4578a7fac1e727053f5e.pdf
    • https://static.usrfiles.com/ugd/ae15ca_343ca2d533574f309b768c597646298a.pdf
    • https://static.usrfiles.com/ugd/3dd68e_c5312467f4fe44699373efcd39b76322.pdf
    • https://static.usrfiles.com/ugd/b8c837_195e3f0534ea465ca49fba8be2f43f65.pdf
    • https://static.usrfiles.com/ugd/4bb894_22b1765761c3462cac5a05ce1e6c0de3.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_off000054f2.bin
6afadf2ff850d66000d76b29ac4d3aaef7e7587fe978cfc78508e9a3df192ef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F2 6032 bytes
font_01_sfnt_off0000696d.bin
c307e1be749eec07a98f6cd86ab1fa0e695571df5cd85cbd2b1d96d735611713		 pdf-font-stream PDF embedded font (sfnt) at offset 0x696D 14180 bytes

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