Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb0b9c9e1a33bbc…

MALICIOUS

PDF

38.3 KB Created: 2020-08-22 15:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 051fcc4fcf90e6a304745da45694d397 SHA-1: 3d8a73d907588c50b300d4f0ceb1f6b8ba40ff5d SHA-256: 3eb0b9c9e1a33bbc0015afd1c6c6caef050da2272eb5baae7e11f3711e13ce90
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL 'https://ttraff.ru/pify?keyword=dr+denim+size+guide' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify PDF links, suggesting a content-scraping or link-farming operation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=dr+denim+size+guide
    • http://files.langsidechurch.org/uploads/1/3/2/3/132303061/3cc50cd3e1.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7596/files/why_is_my_booklet_printing_upside_down.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5425/files/silugiduvoruwenubuve.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/makalah_patent_ductus_arteriosus.pdf
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/86892104095.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/48805564815.pdf
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/49951440068.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/96480408246.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_off000057a0.bin
eef49968505a1e0eb5439f453d21b14a0d8bdbe2a0bd2dfe6a9e74cbdf17b768		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A0 4952 bytes
font_01_sfnt_off00006863.bin
92e2844a27c17847b3ef163dc688108a79b6aec65f748cfc8db85c41a6313c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6863 10936 bytes

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