Malicious PDF — malware analysis report

Static analysis result for SHA-256 7567c14c4f019dcd…

MALICIOUS

PDF

49.3 KB Created: 2020-11-08 19:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 778c230a8f547cbcca75fdac8940520f SHA-1: c2ccb2143d63a725859b35a18a135e65b62b8a44 SHA-256: 7567c14c4f019dcd2b980300b8ad822e733306e2ebbf8844a649e65af98c722a
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://traffking.ru/123?keyword=wow+3.3.5+blood+dk+pvp+guide In PDF document text
    • https://wavuvavezexa.weebly.com/uploads/1/3/0/7/130775629/xifovi-kosab-gavad.pdfIn PDF document text
    • https://lizapomed.weebly.com/uploads/1/3/4/5/134511268/6974540.pdfIn PDF document text
    • https://revibafejinaj.weebly.com/uploads/1/3/4/4/134485322/namovavurodoj_wefonuxaru.pdfIn PDF document text
    • https://vokewubepil.weebly.com/uploads/1/3/4/4/134443825/delodidekawo.pdfIn PDF document text
    • https://garigewofunem.weebly.com/uploads/1/3/4/3/134314314/sivalemikodogu_xurosopab_gexarixinetulun_nevisemi.pdfIn PDF document text
    • https://mejulima.weebly.com/uploads/1/3/4/0/134040536/4837939.pdfIn PDF document text
    • https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/kalapuxivujeb-zibogofonuz-pugerowa-dorasotaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ditigogonib.files.wordpress.com/2020/11/tezojuxebajipidomegotijap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fe1a6ee-1be4-4d79-bebe-efad4b3e9216/guilford_county_register_of_deeds_marriage_license.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6184c142-494a-4e22-98fd-0c1a8d7ef15d/wifoditunupodolavifedo.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_off0000809a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809A 5332 bytes
SHA-256: 0574af08bad055ef85b7335ca5f9b9644be2b691b0e37b9326bf2eafad66365c
font_01_sfnt_off000092fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FD 10952 bytes
SHA-256: e5542783be9c1400e8be60a5ae915cae85b0511f5a744800a457293f0b923f22