Malicious PDF — malware analysis report

Static analysis result for SHA-256 5897bfbe28ff8c64…

MALICIOUS

PDF

36.7 KB Created: 2020-08-05 11:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be2312d42f905c4e65b9deb7a0d39e5a SHA-1: 9e0ef4de228b2052c9fed5e6142428921e03efc3 SHA-256: 5897bfbe28ff8c645a1704e7c53af04d3fafe4c521d59301a45c6dc608a7588d
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=jurnal+pengertian+angiospermae+pdf', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to potentially harmful websites under the guise of providing academic content. The ML classifier strongly supports the malicious nature of this PDF.

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=jurnal+pengertian+angiospermae+pdf
    • http://files.rtsbowlingstore.com/uploads/1/3/0/7/130775490/526c10ad477b.pdf
    • http://files.cool2bnerdy.com/uploads/1/3/0/8/130874422/gafemotetel.pdf
    • http://files.caitlinpafford.com/uploads/1/3/1/4/131408245/a68f6e.pdf
    • http://files.zummoscafescranton.com/uploads/1/3/0/7/130739480/jivoj.pdf
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/woxatifosovaravexewedij.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/73311754406.pdf
    • https://cdn.shopify.com/s/files/1/0430/8071/2346/files/variables_in_qualitative_research.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/tiwifigar.pdf
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/vididobevifurisegoma.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1468/files/biology_book_4_notes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/29274743706.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdf
    • https://cdn.shopify.com/s/files/1/0430/8870/7733/files/rijotisavigifawarewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/jipadafovevosilab.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_off000051eb.bin
c77349a7ff463262c3a1b95445f0280d156dc2e960f68763b5f2fc43e68d6ae8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51EB 5348 bytes
font_01_sfnt_off00006405.bin
a4aab336235ac740136e57c593501a10271c0ee3d6f20fa0fd471258965188d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6405 9972 bytes

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