Malicious PDF — malware analysis report

Static analysis result for SHA-256 4440765ab8f36704…

MALICIOUS

PDF

40.1 KB Created: 2020-08-29 21:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 403a7412ff9942ab2cbf4431dc3f0e39 SHA-1: c94d1ada8f19c37f36e14852aa2c7c8664c0138e SHA-256: 4440765ab8f367042167a3bbc58b9a48f4c21c0dd8a3d457d6c55da9cb42508e
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector, ttraff.ru, which is disguised with a movie keyword. Additionally, it features a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning attempt to distribute malicious content. The document body itself is heavily obfuscated but contains the malicious URL.

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.ru/wix?keyword=kabali+tamil+full+movie
    • https://cdn.shopify.com/s/files/1/0434/2546/4476/files/bimanual_pelvic_exam_findings.pdf
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/sodagaribezevodubup.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/medulotegelozugazodutiret.pdf
    • https://cdn.shopify.com/s/files/1/0461/9416/3863/files/25367773976.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e529965e6e147beb781697430368693.pdf
    • https://static.usrfiles.com/ugd/b8c837_850cc327589a45208b28dc84f8620dea.pdf
    • https://static.usrfiles.com/ugd/b8c837_e410d01fb5eb4f5bae7a3678bc2012ba.pdf
    • https://cdn.shopify.com/s/files/1/0437/5861/6733/files/wazowe.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/85705997308.pdf
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/gataxijapetitevodi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4092/4063/files/90698183977.pdf
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/79850149922.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_off00005edb.bin
b22cae79fa1f18817e4cc238f384d8ade5ed0d68a31c1074a4c20d086728612e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 4808 bytes
font_01_sfnt_off00006f3a.bin
66c2cec7dc7ff8306f23ebafac0945d495459ded728302e82a484f0fbf4de746		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3A 10820 bytes

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