Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3a0d119a843058b…

MALICIOUS

PDF

33.3 KB Created: 2020-08-30 23:57:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 918c4de621dd403b89f40e65a3b555c4 SHA-1: 60b2d3240a6f92f6423f63f98a993d3f7997fc64 SHA-256: f3a0d119a843058b4814709e49dd649d2b5493a412f81cb1430be895a2cd013d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=euro+pro+craft+n+sew+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are benign Shopify links, but the primary redirector is suspicious. The document body, though heavily obfuscated, contains the same suspicious URL, reinforcing the lure. No scripts were extracted from this sample.

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=euro+pro+craft+n+sew+manual
    • https://cdn.shopify.com/s/files/1/0464/9261/4824/files/lagu_ava_max_anyone_but_you.pdf
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/fonojibimikesotiluzuri.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6099/files/causas_del_fracaso_escolar_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/6858676259.pdf
    • https://static.usrfiles.com/ugd/7e0eb0_0499c9de6fdf4ca4badb924dc2be4085.pdf
    • https://static.usrfiles.com/ugd/b8c837_0444f4670e5641759cd886d5c46e78c8.pdf
    • https://static.usrfiles.com/ugd/576447_fa00425304df46afafb40762e5bec72c.pdf
    • https://static.usrfiles.com/ugd/f1d680_4fa608aacb00450b948db20962e89192.pdf
    • https://cdn.shopify.com/s/files/1/0428/1758/5308/files/kupebanadugowumuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/8699/3816/files/95108643042.pdf
    • https://static.usrfiles.com/ugd/dc98cc_78603716e8264ca39e9a73fb640f13a9.pdf
    • https://static.usrfiles.com/ugd/10b11f_4d1ed717ad534174a962ccb102dd55b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6be4d119454488385e544be8e0be150.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_5d557c503a8d4838ba0ab23ae89623fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fb24b56143f48fe9235d6d03ba7d6b2.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_off00004702.bin
9a93604fb93da2de918161e034567994c13761cc626cf29d4e03d0358f5d5c62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4702 5208 bytes
font_01_sfnt_off000058b9.bin
839e9b5b5d402e46c823fc937a97b6fd29ce2af8e7b6f8a6c62984b1a79369ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B9 9312 bytes

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