Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ee0f3992062c3f…

MALICIOUS

PDF

40.0 KB Created: 2020-10-05 16:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6c8723e9172f175fd57a144418d4ed57 SHA-1: 7bc0f0ec43d30efbeb6a975a5394e4680a9d2223 SHA-256: 82ee0f3992062c3fc36ceb5711fda4628358360bc0435a9d4d7c2763e88c7911
124 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.
  • 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://ttraff.me/pify?keyword=hot+indian+babe In PDF document text
    • https://site-1036632.mozfiles.com/files/1036632/gedepogikevox.pdfIn PDF document text
    • https://site-1042918.mozfiles.com/files/1042918/wajutalibupurerigoviz.pdfIn PDF document text
    • https://site-1039437.mozfiles.com/files/1039437/31138031386.pdfIn PDF document text
    • https://site-1037821.mozfiles.com/files/1037821/65815493224.pdfIn PDF document text
    • https://site-1037178.mozfiles.com/files/1037178/57758190927.pdfIn PDF document text
    • https://site-1037260.mozfiles.com/files/1037260/84027117823.pdfIn PDF document text
    • http://files.creativeclayforall.co.uk/uploads/1/3/0/7/130739107/tamuxakowadegunutumi.pdfIn PDF document text
    • http://files.solightpro.com/uploads/1/3/1/8/131871605/18a3966dd5e00.pdfIn PDF document text
    • http://files.tlfamilydetective.com/uploads/1/3/0/7/130739826/3382453.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/74fc9c3e-c5c5-42cb-a09e-98516a5f969f/86520152365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b43af458-68ed-4d31-a244-391ed4cc47ba/newozat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/516475c3-26ad-41d5-9b13-c1a1233802bc/18106813749.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e55e2ccb-7539-41ac-88b1-3064e0f28487/gewomumefib.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_off000061fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FD 4612 bytes
SHA-256: c878501073dd53b19826e106caaa59c802211927bdd60a097611d115d7ea5e8c
font_01_sfnt_off000071b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B4 10004 bytes
SHA-256: 7e1ca5b4cd1018c9ad2d83535ab6f68a96e271e1120ff80c0c9081c898d56c1e

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