Malicious PDF — malware analysis report

Static analysis result for SHA-256 b30a300654200318…

MALICIOUS

PDF

41.0 KB Created: 2020-08-30 16:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d258c28589de0e1de4e35b848c3f816 SHA-1: dae67b844b2bf6ec0980944df231a9f253a8eadc SHA-256: b30a30065420031870c1fc2a53da02763a36fcfb7216e36c6aa0f7f01e922698
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.cc/wix?keyword=teoria+de+circuitos+electricos'. This suggests the primary purpose of the PDF is to lure users into clicking malicious links, potentially leading to further compromise.

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/wix?keyword=teoria+de+circuitos+electricos
    • https://cdn.shopify.com/s/files/1/0437/6887/3112/files/wegofoxogoduku.pdf
    • https://cdn.shopify.com/s/files/1/0464/3337/0264/files/dads_worksheets_division_word_problems.pdf
    • https://cdn.shopify.com/s/files/1/0431/4130/0380/files/l27_as_tu_vu_paroles_illustrC3A9es.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e721ad7b5454fb48fa1b5ac54405ad1.pdf
    • https://static.usrfiles.com/ugd/6cf392_98b958d7ec724d49b31afaf36f9bb3c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_903caf40da2c4745b178f218f357d188.pdf
    • https://static.usrfiles.com/ugd/e643da_57983b80fd464641ac1d0d88f01fb424.pdf
    • https://static.usrfiles.com/ugd/0adedf_e4ce0b88242a46b3be6606ab7860a791.pdf
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/kezururarakiwe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2168/9254/files/80861183796.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5888/files/ginonibapowadelige.pdf
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/wutatukonajuwigamux.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_off00006269.bin
e606d6e2733255b444d07a19e6225f61366f1ecb420d7affac27de0608763b3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6269 4884 bytes
font_01_sfnt_off00007308.bin
ab217676329cb209efadca332f90a77e0e2ba9b66a29d09c878a17a1d00ef871		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7308 10640 bytes

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