Malicious PDF — malware analysis report

Static analysis result for SHA-256 d05a0f3914c8073c…

MALICIOUS

PDF

49.7 KB Created: 2020-09-06 17:01:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48550bbc253a99adf0a6cc76666e8a3f SHA-1: 978619900677182db0e9f1b60411dd1893150695 SHA-256: d05a0f3914c8073c838dfa329767f76b0bc95c8167acbccdb06d335436cf12a4
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure. The primary malicious URL is https://ttraff.club/wix?keyword=murphy+mcnully+friendship+answers, which is likely used to redirect users to further malicious content. 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.club/wix?keyword=murphy+mcnully+friendship+answers
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/birizakidunupujudexi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/the_luck_you_got.pdf
    • https://cdn.shopify.com/s/files/1/0434/9142/6469/files/pilusadafanifetenesek.pdf
    • https://cdn.shopify.com/s/files/1/0435/5227/6632/files/rinigofubukav.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/76738279490.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9607/files/aditya_varma_full_movie_tamilrockers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6023/files/aperturas_y_defensas_de_ajedrez.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0006/files/79148292617.pdf
    • https://cdn.shopify.com/s/files/1/0431/4093/9933/files/genep.pdf
    • https://cdn.shopify.com/s/files/1/0432/6765/3795/files/750086723.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_off00006ed6.bin
258fa03e785f54b4fa191369af1f9f0990b43c5380532f94d9e298d2aad1de07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED6 5596 bytes
font_01_sfnt_off000081d9.bin
6eeccf1f935cdb7d59e5f9b6f302f6b0140d090aecaf4832b031a8ad83734dff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D9 10096 bytes
font_02_sfnt_off0000a4a7.bin
655846f03948bf1c430f8b46535df93af4855b2bf36a37d6956dd5525ed054c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4A7 16212 bytes

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