Malicious PDF — malware analysis report

Static analysis result for SHA-256 472202ed06ad0fe7…

MALICIOUS

PDF

41.5 KB Created: 2020-08-28 03:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91403bf0bc46ada258509e314c4e22b1 SHA-1: d3400d52060bdeb5b61c2922317fe00b89116b88 SHA-256: 472202ed06ad0fe719d6bedbe35f619f2ecbe03fdf7e98cad9fcde5da05eff2e
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=hole%2527+s+anatomy+and+physiology. The document body, though heavily obfuscated, contains references to the linked content and other URLs, suggesting a link farm or redirection scheme. No scripts were extracted, but the presence of malicious links points to a phishing or redirection attack pattern.

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=hole%2527+s+anatomy+and+physiology
    • http://files.jessakid.com/uploads/1/3/1/4/131483955/dimosadizib.pdf
    • http://vapisuwab.lowcountryliberals.com/uploads/1/3/1/4/131454526/632b4c9c7f4.pdf
    • http://guguk.bremertondancecenter.com/uploads/1/3/1/4/131407406/xatakakakedixo.pdf
    • http://files.rmc1studio.com/uploads/1/3/1/4/131453645/729575.pdf
    • https://cdn.shopify.com/s/files/1/0432/0762/2824/files/63068747971.pdf
    • https://cdn.shopify.com/s/files/1/0431/7036/5589/files/nuzogagovewakox.pdf
    • https://cdn.shopify.com/s/files/1/0431/1256/2849/files/body_parts_esl_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/certificate_border_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/7494/4153/files/android_sqlite_foreign_key_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0454/2601/6424/files/tanivaxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/dadodesiferelotawako.pdf
    • https://cdn.shopify.com/s/files/1/0457/8118/8764/files/apollo_munich_health_wallet.pdf
    • https://cdn.shopify.com/s/files/1/0433/8922/3066/files/corel_draw_portable_x3_64_bit.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_off000061ce.bin
7422cc2b3a5fbd7e71380be95333670670374cab04e2468666bdc9d886215345		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 5376 bytes
font_01_sfnt_off000073fd.bin
76349c58ab4addb85fb33a04772ad748d871620aabeeb157e83f5ef4fe67ad47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FD 10560 bytes

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