Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff3693cbf1eeb9d…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 00:12:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 892ef3c861fa77040dabf525d29c899d SHA-1: 993b6494952b1409ae1dde36fd2e546c2af6bb3a SHA-256: aff3693cbf1eeb9d7f6ad549da0e5a4aab95d971ab76f1ca6adea51e7fc979e1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary redirector URL being `https://ttraff.cc/pify?keyword=bed+box+springs+vs+platform`. This indicates a link farm or redirection strategy, likely to distribute malicious content or phish users. The presence of numerous external PDF links, many hosted on `cdn.shopify.com`, further supports this attack pattern. No scripts were extracted, and the document body is heavily obfuscated.

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.cc/pify?keyword=bed+box+springs+vs+platform
    • http://gonemagal.thedevilskaiju.com/uploads/1/3/0/7/130774965/4879918.pdf
    • http://files.peterdurst.com/uploads/1/3/1/4/131406453/gaxobonujuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7861/4168/files/analytic_geometry_ellipse_problems_with_solution.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31184917419.pdf
    • https://cdn.shopify.com/s/files/1/0432/3393/5515/files/calendario_serie_a_18_19_tim.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9654/files/mi_isla_soada_abelardo_diaz_alfaro.pdf
    • https://cdn.shopify.com/s/files/1/0429/3040/5535/files/65714026983.pdf
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/likadumir.pdf
    • https://cdn.shopify.com/s/files/1/0434/4463/3750/files/wamomilame.pdf
    • https://cdn.shopify.com/s/files/1/0434/7179/8436/files/taxawuzarogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4280/files/31015641367.pdf
    • https://cdn.shopify.com/s/files/1/0455/2966/1605/files/eichmann_em_jerusalm_minhateca.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_off00006116.bin
e2af1b1a6c82b91631f420a206c71ecded1c5847629e4cc9091cb72a3a95bd76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6116 5680 bytes
font_01_sfnt_off0000745a.bin
b0ca8202a87d8e22146b31aa8b6d6545de4ed30fae0970bec3fd1c36b145815b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x745A 10128 bytes

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