Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb228313b28f7fe0…

MALICIOUS

PDF

61.1 KB Created: 2020-10-06 15:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 217f823930db01cee58bc212629b3d7c SHA-1: cf1dac6f72f5315f4f9b05b278acb3f6f8d41406 SHA-256: eb228313b28f7fe069c229d140c33981b94f2234eca2d9b5f9b4d4a2d44fa4ec
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://gettraff.ru/pify?keyword=bewitchment+mod+1.12.2+guide In PDF document text
    • https://site-1039754.mozfiles.com/files/1039754/50397333008.pdfIn PDF document text
    • http://files.jackienorman.com/uploads/1/3/0/7/130776046/napevirixajesed-kadafavorapi-fedezomuter.pdfIn PDF document text
    • http://sunuroje.neverwantednothingmore.com/uploads/1/3/0/8/130814173/8352611.pdfIn PDF document text
    • http://files.katiemcbridephd.com/uploads/1/3/1/4/131437319/goboroketaxuwifuxemo.pdfIn PDF document text
    • http://files.gioiellisara.com/uploads/1/3/0/7/130776619/fufowesakebaje-jisufu.pdfIn PDF document text
    • https://site-1037188.mozfiles.com/files/1037188/43631188678.pdfIn PDF document text
    • https://site-1036729.mozfiles.com/files/1036729/tufotujijevatatesawonozuf.pdfIn PDF document text
    • https://site-1038376.mozfiles.com/files/1038376/nowok.pdfIn PDF document text
    • https://site-1044152.mozfiles.com/files/1044152/5724881588.pdfIn PDF document text
    • https://site-1041381.mozfiles.com/files/1041381/mirinupomupabo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/1c5bd68a-b35a-4b84-8dac-ceda7e3495db/tewemezusebanu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d20aaa1-c45d-464f-bbd0-a8200e526c4e/mewugagavonokowipite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a98b167e-7d66-4c6e-b1a8-30044c469a59/7816414450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c34e6be0-41a3-4876-a1c3-2a3c2b01e871/71665001494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/364eb64a-f366-4a1a-9478-38dabb9ac166/sanogaxevabutesadanevi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEF 5076 bytes
SHA-256: 08e739aaace725f679471e511c37a1bd33bc1e2da92bdefc41a7ab4034632252
font_01_sfnt_off0000912e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912E 15304 bytes
SHA-256: b96e53c7253fe2d0e5da6f6ae7951f808f49287d2da22a8cee980b42e8b86f7e
font_02_sfnt_off0000c123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC123 16480 bytes
SHA-256: 03e1f474b046b4e97893dfc5422cc66251e94badd996c9b6293a33e2adc9592a
font_03_sfnt_off0000d785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD785 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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