Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e319dc01b22b31…

MALICIOUS

PDF

38.3 KB Created: 2020-08-19 07:15:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a00cb88e3877e04c8b58b14284ce6e08 SHA-1: 66179db325454d4b17980df203c5800f6bdbf7d8 SHA-256: f3e319dc01b22b313baa1193b69cd3569687b138486b401957cc07006b2b9a11
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=new+movies+online+apk'. This URL is presented in the document body, suggesting a lure to download an application. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used to distribute malicious content or improve SEO for malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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=new+movies+online+apk
    • http://files.leedsmiddleschoolband.com/uploads/1/3/1/0/131069789/vubipuxaxasob-divarurenonogiw-sabawiv-tevorudol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/icao_annex_7_download.pdf
    • https://cdn.shopify.com/s/files/1/0455/6455/9525/files/middleboro_casebook.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/42358233839.pdf
    • https://cdn.shopify.com/s/files/1/0437/1893/4677/files/20392927090.pdf
    • https://cdn.shopify.com/s/files/1/0427/9966/1223/files/ryan_weed_eater.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/namolibovidezonopurepol.pdf
    • https://cdn.shopify.com/s/files/1/0431/4470/8245/files/67174546645.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/10459525175.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/rusekavaloxurajovapizux.pdf
    • https://cdn.shopify.com/s/files/1/0431/9939/8052/files/sakez.pdf
    • https://cdn.shopify.com/s/files/1/0440/2062/9654/files/90258761365.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_off00005a6e.bin
77f5fc3c56667e58c1d725b65043b38700561fdace10b19154ebe0233a1cb445		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6E 5056 bytes
font_01_sfnt_off00006bab.bin
0304f112c4b1635cde1c2bb5d7b4d34c52f1b016d7b0cafa5badb4b1a620c4cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAB 9760 bytes

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