Malicious PDF — malware analysis report

Static analysis result for SHA-256 40785e94ffd59eeb…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 00:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c0449339fb9c22a3d181831cf48f93 SHA-1: 029622081b0bd262e81e76e906a2e4945a1dd3f0 SHA-256: 40785e94ffd59eeb51f4f95f4292d881f8fb44d2b520aeddf7d9318d85c379f5
120 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to malicious infrastructure, disguised as a movie download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. The document also contains a large number of external PDF links, many hosted on shopify.com, suggesting a link farm for SEO manipulation or to distribute further malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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=weathering+with+you+full+movie+link
    • http://fusoludi.northbranchsummerrec.com/uploads/1/3/2/6/132681352/lupotawafodevatule.pdf
    • https://cdn.shopify.com/s/files/1/0432/8367/7339/files/26202736188.pdf
    • https://cdn.shopify.com/s/files/1/0428/6762/2055/files/rozasap.pdf
    • https://cdn.shopify.com/s/files/1/0431/4470/8245/files/finuriwu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/force_unleashed_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0432/2505/5387/files/kilosagapazo.pdf
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/lidupuvajinadubonek.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/android_9_call_recording_software.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/discuss_personality_development.pdf
    • https://cdn.shopify.com/s/files/1/0431/5296/5792/files/21076420447.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/giputumepuvodagom.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/18934184911.pdf
    • https://cdn.shopify.com/s/files/1/0432/0637/7633/files/bimezo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a97.bin
27fa66a865203ec6d2d70bacc7660948fccd57eecff9d53a7c11b4cac037a024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A97 5216 bytes
font_01_sfnt_off00007c4e.bin
26fc52d38c36304e88a0f13620c0c328b89e06c15937fe6da72bc588128ae405		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4E 10768 bytes
font_02_sfnt_off0000a11e.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA11E 4324 bytes

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