Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee0c73861912dd2…

MALICIOUS

PDF

35.2 KB Created: 2020-08-26 01:40:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40e249d94de141e409da57662b316d37 SHA-1: 4391080e998ccb081497eabc64c0130dc8c47e0b SHA-256: bee0c73861912dd2ac8aad2bb8782bb2d304136a19c5d6af8dabba4b45bf15b6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also fires for PDF_SEO_LINK_FARM, suggesting it's part of a link farm designed to manipulate search results. The primary IOC is the redirector URL, which is likely used to funnel victims to a malicious site. The document body, though heavily corrupted, contains the search query that likely led to this PDF, reinforcing the lure.

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/pify?keyword=atkins+quimica+inorganica+pdf+espa%25C3%25B1ol
    • http://files.vetbehavioroptions.com/uploads/1/3/2/8/132814935/mokizetudipapa-vavem.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/gejizajulowuso.pdf
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/35875539382.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/rigesotogifizozeje.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/wav_to_midi_convertor.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/67652403514.pdf
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/topekob.pdf
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/30111599814.pdf
    • https://cdn.shopify.com/s/files/1/0463/0708/2402/files/daggerfall_unity_modding_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/37064494843.pdf
    • https://cdn.shopify.com/s/files/1/0431/0764/7639/files/bizzey_traag_free.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_off00004704.bin
ee1e48dc48bd44ba22ec1d2c9d484b560231531745d2919810c37a1fe400fa2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4704 5864 bytes
font_01_sfnt_off00005a99.bin
d4e910c35248f2840d1ae21f9046eff6d289541dd889927db3ca1f966b54b606		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A99 10484 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.