Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29edb704e509700…

MALICIOUS

PDF

56.4 KB Created: 2020-08-31 02:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af8651d42eec41e23cb657814a7ea185 SHA-1: 90b657923bfbad0f68770d2c180c3e5c9eac291d SHA-256: e29edb704e50970002f36d18a8458f770891e7918166a2d48c1a3ac4ebc5580f
128 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and references to urgency, suggesting a phishing or scam attempt. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=incidental+music+top+gear
    • https://static.usrfiles.com/ugd/b8c837_9bb3d96d2c654f6f813b4d0e36dd2f4c.pdf
    • https://static.usrfiles.com/ugd/b8c837_04fadcb1ee4e467ab7c56182712a4163.pdf
    • https://static.usrfiles.com/ugd/83b1b3_37c998c4bdeb435293181175f8e4b07e.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_d606e47270124c2683586ea9922dddec.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbecc9a1d58c46e9b45e70e6f34fd5c9.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_ae6427f00e664ed894756fd065023466.pdf
    • https://static.usrfiles.com/ugd/58a813_91676e8a4fc94aa39e10fdc137d901bc.pdf
    • https://static.usrfiles.com/ugd/f09a9d_490cbff57b884aa98b3cf74bb297ef75.pdf
    • https://static.usrfiles.com/ugd/8e1900_be5b7a7758c748ed9bcd366f919f240c.pdf
    • https://static.usrfiles.com/ugd/fef806_2583a13074834244b2967e2157c05db8.pdf
    • https://static.usrfiles.com/ugd/078c79_2615d469cc944851949a27af7d61b538.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cad664b32c740599c559bfef1fdb2b9.pdf
    • https://static.usrfiles.com/ugd/bd5c68_793f667f56184007b0922d347a41f88e.pdf
    • https://static.usrfiles.com/ugd/1a89c8_99c9cb95b4fd4192bfcf35e8c6ffc3e4.pdf
    • https://static.usrfiles.com/ugd/b8c837_882974bfd91d4483abc4bc256aa23e76.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_off0000a01f.bin
361630ed4c261c5552378cb8abf71c885839d8d4282170eb10c1486acd00deff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA01F 5328 bytes
font_01_sfnt_off0000b21c.bin
fbb9c3542dd01130174d3c6391f049e37a30b6a639de04ca8603450ecb1a8d72		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB21C 10144 bytes

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