Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afcfe5c51195dac…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 12:09:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aebfd6b0d1e236dc23d95667d4e9927 SHA-1: 001f30811abc3b93ba7b1b5bd6ec79ff570b6e63 SHA-256: 4afcfe5c51195dace91a90e3fb35da2f2038e9c9f503402668b6ffee2874eff3
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, indicates a lure related to a 'drip irrigation application form'. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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.ru/wix?keyword=drip+irrigation+application+form
    • https://static.usrfiles.com/ugd/c20ea7_feec6779b4a740379458d85a5871a065.pdf
    • https://static.usrfiles.com/ugd/b8c837_132eb013f89043e59db09a7000f93195.pdf
    • https://static.usrfiles.com/ugd/07625c_b3eeee103c4e43adaa5f06bcf4f2bb27.pdf
    • https://static.usrfiles.com/ugd/b8c837_17843f1b74f547aab2b79d085ca6893f.pdf
    • https://static.usrfiles.com/ugd/b8c837_039e1768b0b747f9b987de81af01f31d.pdf
    • https://static.usrfiles.com/ugd/4b874d_d7c3711c1e3846b3913a26a36a92288c.pdf
    • https://static.usrfiles.com/ugd/b8c837_65ea61e6820248da860568647ca74ed5.pdf
    • https://static.usrfiles.com/ugd/6cf392_5026769ce81245e7ba19cae2d1fce6bd.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/10460557701.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5907/files/73011788522.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5110/files/82461646597.pdf
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/everything_stays_ukulele_chord_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/17999755844.pdf
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/chancery_division_law_reports_uk.pdf
    • https://cdn.shopify.com/s/files/1/0440/6660/3158/files/64252729000.pdf
    • https://cdn.shopify.com/s/files/1/0436/2131/8818/files/wavufomodirinisiwuxulom.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_off00006458.bin
d0336a52018fd968f95b0865cd1ce999c4e5739810cc9531f414ca7e17b89ed8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6458 5156 bytes
font_01_sfnt_off000075d4.bin
1feebfa32dc96bf430f766fdf6b7ed826cf05c710d74e6d1d927b6c09f09a7f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D4 10532 bytes

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