Malicious PDF — malware analysis report

Static analysis result for SHA-256 20c5b014af9816ad…

MALICIOUS

PDF

135.8 KB Created: 2020-08-03 07:04:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b9f2fffc8cf159087a5b27dac6ec9b7 SHA-1: 0f08b40d4fa4fa7cc3da2ecc04a82188a718e1f5 SHA-256: 20c5b014af9816ad6c5a7a49ab1828c5ea644237d896bcf66bea74c9174d673e
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=fairy+tail+2014', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to a harmful site, likely for phishing or malware delivery.

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/pify?keyword=fairy+tail+2014
    • http://files.pampangarealestate.com/uploads/1/3/2/7/132710726/9637962.pdf
    • http://files.mn4ne.org/uploads/1/3/1/8/131856706/d234ca8.pdf
    • http://files.cgvideoproductions.com/uploads/1/3/1/4/131406749/8863937.pdf
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/lojiz.pdf
    • https://cdn.shopify.com/s/files/1/0439/3782/4926/files/69953571659.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/ksbw_weather_radar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/bemer.pdf
    • https://cdn.shopify.com/s/files/1/0432/6090/3582/files/daximom.pdf
    • https://cdn.shopify.com/s/files/1/0436/3006/7865/files/physics_laboratory_experiments_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/wusopubogabizubejegikote.pdf
    • https://cdn.shopify.com/s/files/1/0429/7293/8399/files/npte_exam_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/xotinufotebale.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/72476484203.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/27819374486.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/86355639845.pdf
    • https://cdn.shopify.com/s/files/1/0434/0298/5622/files/61321208111.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016254.bin
0defd176addd828b9cdc6c98c77102d049c21c123d16f29b8bdeffdd968924d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16254 30748 bytes
font_01_sfnt_off0001c25f.bin
ac8ffb7609baf92af0ffc4f94f5474791c4f5fa4d8689b0c6097134a8a0ed330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C25F 4424 bytes
font_02_sfnt_off0001d172.bin
b49c794c2ec396603bb6f5ef94be05ec65b4f643d321068622b79d4345b2c0e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D172 16460 bytes
font_03_sfnt_off000203e0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x203E0 4324 bytes

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