Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7d70945a053ee2…

MALICIOUS

PDF

48.1 KB Created: 2020-11-09 03:14:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: d5ae6a19886c7ffdd96c290cfafaaf1d SHA-1: c9687ad8cfcc0d6915fe196ff81cbe4f8eca1e28 SHA-256: cd7d70945a053ee210af48e557c021bc8bd0af2d37a96892c2c4fc40dba26a31
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=nba+live+mobile+hack+apk+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379034/normal_5f9796f31c786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365555/normal_5f86ffdec8f1f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xizaxuvi.files.wordpress.com/2020/11/11th_biology_practical_book_in_tamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a5361a-d191-4200-9bbb-368bb2914320/ninotox.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/seloluranorajiw.pdfIn PDF document text
    • https://mipizitebo.files.wordpress.com/2020/11/diablo_3_player_count.pdfIn PDF document text
    • https://vivuvegutofo.files.wordpress.com/2020/11/giledudovezedigajadimupe.pdfIn PDF document text
    • https://lagonepij.files.wordpress.com/2020/11/54369881304.pdfIn PDF document text
    • https://lusiwelop.files.wordpress.com/2020/11/dojowemu.pdfIn PDF document text
    • https://puravame.files.wordpress.com/2020/11/81489633910.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/208e32ff-524d-44c2-927d-54656ceae961/10508806712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bde5cfe3-a4aa-4dfc-aedf-852015ce280a/culpa_mia_mercedes_ron.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B5 5368 bytes
SHA-256: 70b661b3011564e5136d7afd6f843c0803c3695de8417016ff89846ab12256b2
font_01_sfnt_off000077d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D1 10956 bytes
SHA-256: 271fd2c6291773e4db48d27c568a14690f7b9d202ae9a665a846a55a2e77341e
font_02_sfnt_off00009d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D5F 16272 bytes
SHA-256: 82b32699d950f0d2801881094b97f6a3b10b5d147672c8518649046776eee3b8

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