Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fee31e43c8a936d…

MALICIOUS

PDF

48.5 KB Created: 2020-09-05 09:18:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75c6a55136f64141ae7f1f306506ee37 SHA-1: f91af9dd30eb3e12fa01ceef1ae4af369ad478ca SHA-256: 9fee31e43c8a936d813b5cb02d084c1c0389e140f0c44ca1173ea580a6331ad7
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 Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. Crucially, one of the embedded URLs, 'https://ttraff.me/wix?keyword=us+guided+interscalene+brachial+plexus+block', is identified as a known malicious redirector. This indicates the document is likely designed to lure users to malicious infrastructure, potentially for further exploitation or phishing.

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.me/wix?keyword=us+guided+interscalene+brachial+plexus+block
    • https://cdn.shopify.com/s/files/1/0443/4470/5180/files/wupumevajepab.pdf
    • https://cdn.shopify.com/s/files/1/0430/7625/5897/files/lapusitotakelifozajuben.pdf
    • https://cdn.shopify.com/s/files/1/0456/4464/4519/files/nevutudazudaji.pdf
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/17463135706.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1268/files/convert_bytes_to_gb.pdf
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/wekigudofajat.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/3417162635.pdf
    • https://cdn.shopify.com/s/files/1/0431/9612/1251/files/44919617021.pdf
    • https://cdn.shopify.com/s/files/1/0431/9644/8917/files/blood_type_genetics_problems_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0440/3773/4550/files/definition_of_life_skills_education.pdf
    • https://cdn.shopify.com/s/files/1/0470/6661/1880/files/boomerang_full_movie_free.pdf
    • https://static.usrfiles.com/ugd/9cb927_e366d0db6c8449c99d35d0f019bd1426.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_5998f632040b4e949ed515777155480d.pdf
    • https://static.usrfiles.com/ugd/bf57b5_69850b0e2b1b4a70a2021b286f6cbf52.pdf
    • https://static.usrfiles.com/ugd/c70c35_5b497a083b4a4f0aa0a8ac20d559d585.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_off00007e0a.bin
bfe995b5c2399d389f2110eec299fcfa1bb94b9dea61b9e721fb41094ac94856		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0A 5600 bytes
font_01_sfnt_off00009108.bin
c9d61edaadcbc83a6c20b91fa807bf389e14522d185ca48f84ecb046d61ae04a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9108 10580 bytes

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