Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56cf6f6b2945e4d…

MALICIOUS

PDF

39.7 KB Created: 2020-08-24 03:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac5645d61eabe4123d514c2716c0337e SHA-1: 01ea39349a7bcae2e1b5cbae9b7eb3cc60b25b4f SHA-256: f56cf6f6b2945e4d92de9c86b2b599312729f082b8f6d3e3cab1ec65c72422ed
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is disguised as a movie guide. This suggests a phishing or social engineering attempt to direct users to malicious infrastructure. The PDF also functions as a link farm, with many links pointing to Shopify domains, likely to obscure the malicious redirector. No scripts were extracted from this sample.

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.com/pify?keyword=delivery+man+movie+parents+guide
    • http://rupupij.hillsidehavenwii.com/uploads/1/3/1/0/131071021/kikivinejemosuzeko.pdf
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/84865628930.pdf
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/43761785045.pdf
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/67036673948.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/ellen_macarthur_foundation_circular_economy.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/27867023985.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/before_sunrise_full_movie_in_720p.pdf
    • https://cdn.shopify.com/s/files/1/0431/7967/1718/files/jukufavurivewen.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/4202131259.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/35958281643.pdf
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/466540202.pdf
    • https://cdn.shopify.com/s/files/1/0432/1827/2417/files/98479303804.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_off00005cd7.bin
906a737e3e3575d890c2bfe4d93109186088a8f3e00557baed1ff81b183bed51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD7 5440 bytes
font_01_sfnt_off00006f4d.bin
5349746452dc4c15a689274c4b6fcd3ab91920aeb4ede6abe259190b0a7b72e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4D 10212 bytes

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