Malicious PDF — malware analysis report

Static analysis result for SHA-256 36415d1aaff60868…

MALICIOUS

PDF

43.3 KB Created: 2020-08-06 13:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dec471c3ede8bb9beea4ab91f396639 SHA-1: 46b7c94016d22429ee7a1662b1a18ccb3e29feb2 SHA-256: 36415d1aaff60868fcd02d27e89bd108df791803577bab1cf034cdebbe8560b7
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=landing+page+optimization+tim+ash+pdf+download', suggesting a lure related to SEO or content optimization to entice clicks. No scripts were extracted, and the maliciousness is solely based on the embedded links.

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=landing+page+optimization+tim+ash+pdf+download
    • http://files.adbsafegatetrainingacademy.com/uploads/1/3/0/9/130969061/8295666.pdf
    • http://files.aishathhuda.com/uploads/1/3/1/4/131454355/fde167c8f2b20d.pdf
    • http://mameja.avimehta.com/uploads/1/3/0/7/130775934/40a7e202c22607.pdf
    • http://files.board.solonchamber.com/uploads/1/3/1/1/131163859/rabojofavafupozakebu.pdf
    • http://files.occidentallodge436.com/uploads/1/3/2/7/132740277/4527271.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/wallace_and_teirnan.pdf
    • https://cdn.shopify.com/s/files/1/0432/2725/0848/files/69645985283.pdf
    • https://cdn.shopify.com/s/files/1/0440/5824/7320/files/electronic_technician_resume_sample.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/how_to_round_numbers_in_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/6172285624.pdf
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/pinevixoxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/28287277781.pdf
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/rinoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/36962726084.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/36125592714.pdf
    • https://cdn.shopify.com/s/files/1/0433/3371/4070/files/gujuxob.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1073/files/95542236146.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/nurogixenav.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_off00006b8c.bin
6f3d3a8af64c1e446d12b160d7d6a81140b19b31d7115134cf9126455cf3bca0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8C 5440 bytes
font_01_sfnt_off00007e0d.bin
460424041f981db418981c4fa84a890223d48d57d37d148c1148a03b83c9f15b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 9948 bytes

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