Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe424b64d860a69f…

MALICIOUS

PDF

40.6 KB Created: 2020-08-05 22:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a52db2b450b54a7ac79b804d0808344 SHA-1: 423e0438536b75c684d78d182b8c71bc11d042d6 SHA-256: fe424b64d860a69fea56f7081215e512f32a0019f698f1a0fba9a485a81b535d
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique commonly used for link farms to manipulate search engine results or redirect users to malicious sites. One of the primary links points to a known malicious redirector. The document body contains metadata suggesting it was generated by wkhtmltopdf, and includes the malicious redirector URL and several other URLs hosted on Shopify and custom domains, likely part of the link farm.

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=proyecto+pdf+ejemplo
    • http://files.votejeffblubaugh.com/uploads/1/3/1/3/131384335/luresaluzawimuw-mutizatus.pdf
    • http://files.cdpressing.com/uploads/1/3/0/8/130814680/7217528.pdf
    • http://files.globalisationandcities.com/uploads/1/3/1/6/131607174/jilaxafufusekiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/popajawisadamexikozajuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/padewaposodutudunaliwuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/jevamefifitawubi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4109/4817/files/7695093168.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/gozonilejabu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sikotifukiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/7529/6677/files/bexefenijiji.pdf
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/best_tryndamere_build.pdf
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/riwelabotiki.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mikawewetekiwu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9793/9349/files/38731783899.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/24823191784.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_off00005fce.bin
50abd6964cefc85973455936a3e1bc3d799e47b0973e773479b9022f8ac3de73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCE 5092 bytes
font_01_sfnt_off0000711f.bin
437e9499f3c6daed20f43a27394ed544b6d7494f9816eef405b46ce3ba1ca731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x711F 10812 bytes

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