Malicious PDF — malware analysis report

Static analysis result for SHA-256 242b2c0f453d3ac3…

MALICIOUS

PDF

40.9 KB Created: 2020-10-15 08:02:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1cad4fa85bb9219bb4b97c7be912c1ba SHA-1: 9ffbfe5b2211381809360a7271b7a387f9e128db SHA-256: 242b2c0f453d3ac30bb9d73df2bdd279a020fdd1949a6ec0375c43101c8592fa
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/123?keyword=ever+after+parents+guide In PDF document text
    • https://roninuvanajeg.weebly.com/uploads/1/3/1/3/131379749/d7b8a4f.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/4468004.pdfIn PDF document text
    • https://rutaluxunenore.weebly.com/uploads/1/3/0/7/130740368/vitelowiwiso-dowif-buveziv-wuranofi.pdfIn PDF document text
    • https://wojeribexojuxu.weebly.com/uploads/1/3/1/8/131856158/wonuvu-nufet.pdfIn PDF document text
    • https://site-1042840.mozfiles.com/files/1042840/manual_camera_dslr_camera_professional_apkhere.pdfIn PDF document text
    • https://site-1041946.mozfiles.com/files/1041946/95600511422.pdfIn PDF document text
    • https://site-1037075.mozfiles.com/files/1037075/joxerefala.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kadijamiruvinugeno.pdfIn PDF document text
    • https://xirofepomare.weebly.com/uploads/1/3/0/8/130814083/fijopunidivarejesuje.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/wogiselaruto-nokage.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ligewajinaxi.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_5f87b2a51fd1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f877a371dc4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f8711e8c193d.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/1/0432/7066/8448/files/probability_mass_function_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3943/9032/files/podebazifizoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2598/9785/files/motobecane_mirage_slx_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0126/9405/files/pbfit_powder_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8897/9137/files/special_products_of_polynomials_worksheet_with_answers.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_off00006319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6319 5196 bytes
SHA-256: 3310a04cc15da32a3e676f95b209895043e0f1dd3fb039a294c22e779a75631a
font_01_sfnt_off000074db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DB 10012 bytes
SHA-256: 6729b2e88aa681574237f590023c814273a9bb4848bcf7b21e3a8df2af00ad3c

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