Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e72212270759db…

MALICIOUS

PDF

51.7 KB Created: 2020-11-02 05:40:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6cb2f0d307892f04808015cf0651093e SHA-1: 3820267c99694689b0b27ed1212aab2b512f3203 SHA-256: 34e72212270759dba7d213ed65032ade088794eadc963f3f24d0f198a4964b8e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/123?keyword=review+grizzly+g0555x+vs+g0555lx In PDF document text
    • https://wopeduvolevim.weebly.com/uploads/1/3/0/7/130776212/moluluxunemolux_witajipupujaru.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/72ee30a27c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427795/normal_5f9c4070cabe2.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/1/0435/3985/7563/files/kukoraxonaxafip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/3845/6999/files/48618001791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bfb211c-31fa-460a-917c-7d07f9724755/wovatojedogezurujeb.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/bozarekadebejow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3205/9290/files/invisilift_up_tape_bra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bbe607a-a442-471e-8532-d275546cb977/lofurolor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1087/4301/files/64403204120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1357/0201/files/xadolesobumipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8123/files/restaurant_inventory_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1557/6001/files/alchemia_story_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/zoxubememuke.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_off000088c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C7 5288 bytes
SHA-256: 73575f9d3fa52356a6b8f30b4fd1fea440c93d0b56f1f7e91ccfb43e6832dfc0
font_01_sfnt_off00009b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B08 11468 bytes
SHA-256: da01d895f447890c2193dd7a274afe49fac26e18aadf9bc20d345de7a75b2b07