Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff7977ac60cf1de…

MALICIOUS

PDF

42.6 KB Created: 2020-09-12 08:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 0427c8f17da7f89a7a82a973f60d8509 SHA-1: f616242ff4ce74b1e6229f21638d91a5a3ac2fd4 SHA-256: 7ff7977ac60cf1de7a9326d9e563d062f7b76c79193676039a7e584c5daf7418
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wix?keyword=iifa+awards+2018++filmywap In PDF document text
    • http://wesozup.prakritidance.com/uploads/1/3/0/8/130873782/336e3cb02.pdfIn PDF document text
    • http://files.littleinspirationsmn.com/uploads/1/3/1/4/131482886/580a8.pdfIn PDF document text
    • http://files.advancedceramicproducts.com/uploads/1/3/1/4/131453248/1068633.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/vipenunokofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/cladogram_practice_2_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2765/1749/files/kerunaberotipezuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2448/1431/files/jalubivurawoxeb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_9336957ca8c0459e9f0b73704def7569.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0010c8_333e8fb6d96b4ba3b3c61e315ede9441.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/866690_7a786cacf599413ba5eeec26ca3fc7c4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0c4177_94c1effa251f48fbb506760f64d26bad.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cc03df_57a5c198cec14d7e980696cfa07d571d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_286d42d3721b4a818ad156a9620b876c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/73c254_0f491c69f77e4af1be0ca7cfcb5beb08.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6679 5840 bytes
SHA-256: f7e1ed65fc70f3a56231e630bdb4d2cd7c69e5a0befb4199b4e195bc9c5f2876
font_01_sfnt_off00007a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A60 10332 bytes
SHA-256: 0204c8de00f3b00205de6ec2ebfab6a86ece88f5819a706066acf54ac7ee3633

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