Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1d62fcfe4f2b46e…

MALICIOUS

PDF

33.6 KB Created: 2020-08-29 23:41:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 426b0d2d7e72e7287249a0477372ce90 SHA-1: 1795db5b11c2b17bc6dcd16e2a1c69ff6f1048bf SHA-256: f1d62fcfe4f2b46e25acc961accd0cd22f037669491549a49c2428b4f783d71e
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure for a 'book of jubilees pdf free download'. The heuristic firings confirm the presence of a malicious redirector link and a link farm, indicating a deceptive content delivery mechanism. 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.com/wix?keyword=book+of+jubilees+pdf+free+download
    • https://cdn.shopify.com/s/files/1/0438/4784/4000/files/zolovugudowezuboru.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/boxunijamofidiwogep.pdf
    • https://cdn.shopify.com/s/files/1/0434/6164/0352/files/3197244757.pdf
    • https://cdn.shopify.com/s/files/1/0440/9052/3813/files/75122192272.pdf
    • https://static.usrfiles.com/ugd/b8c837_a91cd6166be744899957383a498e62ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_2dd8fe26987a44559f20127366d93054.pdf
    • https://static.usrfiles.com/ugd/756799_d6645455b02543a49ea356bb6dd36f10.pdf
    • https://static.usrfiles.com/ugd/b8c837_916ed1355aa9479b993a4d1369c5a770.pdf
    • https://static.usrfiles.com/ugd/b8c837_d480769a35384017974c1bb12043c8d9.pdf
    • https://static.usrfiles.com/ugd/e3ff21_ad7de169f23242a9b35dec11ef36fa70.pdf
    • https://static.usrfiles.com/ugd/b8c837_0c5ba7c84fd74f85ab0867e590cdab2d.pdf
    • https://static.usrfiles.com/ugd/b8c837_8901d2675ded4b4db21fc507091c7d55.pdf
    • https://static.usrfiles.com/ugd/b8c837_abb20bad16374a96ba6a072e9a25c470.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_off00004647.bin
1a826b168117717e292e3ca5d2dfae027e1b4d5d9995acb6a5f043998498cb8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4647 5456 bytes
font_01_sfnt_off000058f4.bin
a3be030e776c14f7013d6d6c87708691253eba4e2d8e55dccf7031b1d807f75a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F4 9640 bytes

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