Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4deb85df54a3b4…

MALICIOUS

PDF

33.3 KB Created: 2020-09-11 21:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46098c0539ae7b422ce204e16be5a763 SHA-1: 68f145e36c06f7567b692e94c68234864ae84222 SHA-256: 3e4deb85df54a3b404b4faf5d0ab54b94177d2c1acd3681608590def192646f3
120 Risk Score

Malware Insights

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

The PDF document contains a title suggesting quiz answers, likely to entice users to click the embedded malicious link. The primary link, https://ttraff.link/wix?keyword=metamorphosis+quiz+answers, is identified as a malicious redirector. The document also exhibits characteristics of a PDF link farm, containing numerous links to other PDF files hosted on various domains, suggesting a broader campaign to distribute malicious content or engage in SEO manipulation for malicious purposes.

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.link/wix?keyword=metamorphosis+quiz+answers
    • http://lunebib.janellrubyoga.com/uploads/1/3/0/8/130873995/vowutavanep.pdf
    • http://files.stcharlescatholicchurch.com/uploads/1/3/1/4/131437969/gezodasugikikupimere.pdf
    • http://files.ventisim.com/uploads/1/3/2/7/132710779/4553999.pdf
    • http://files.norwoodcafe.com/uploads/1/3/1/4/131408798/3588370.pdf
    • http://pikilufof.hhsclassof1979.com/uploads/1/3/0/8/130814229/lumemabegu.pdf
    • http://lifov.microbesbymarco.com/uploads/1/3/2/8/132816066/3feecf4dd13f68.pdf
    • http://files.rcampbellconstructionllc.com/uploads/1/3/0/7/130775402/5123977.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/cancionero_infantil_con_acordes_de_guitarra.pdf
    • https://static.usrfiles.com/ugd/b0cd75_62d6eac5a1494e2195c2d436e0967c0b.pdf
    • https://static.usrfiles.com/ugd/b52961_70adc19978194488908a94fde9bbda7d.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_a1770ca974a94b02b5f1e43571d19577.pdf
    • https://static.usrfiles.com/ugd/078c79_69a797eb84944326a18db9dcb2743330.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_off00004580.bin
65c8a5d04983ab30357f54934b46ac72e3739b255150fb834d56985344f9c1c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4580 5300 bytes
font_01_sfnt_off00005782.bin
75ff7d7d652008dcd21d67a942dc97ae180ff72b082bf82c100df7305ca5d15e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5782 9688 bytes

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