Malicious PDF — malware analysis report

Static analysis result for SHA-256 03678030120168ad…

MALICIOUS

PDF

38.9 KB Created: 2020-10-06 14:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7c8c25b2aa2d9e436ae1b77c551d9a4e SHA-1: 342e9459859b0fc780062c05e8a206278d8d385e SHA-256: 03678030120168ad008ffeb302d0cbbbd0b1ae926de3515ad452b34405a6dbe0
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/strik?keyword=power+of+a+praying+husband+pdf+free+download In PDF document text
    • https://site-1039658.mozfiles.com/files/1039658/nasowawefana.pdfIn PDF document text
    • https://site-1043833.mozfiles.com/files/1043833/werexuvovinores.pdfIn PDF document text
    • https://site-1037218.mozfiles.com/files/1037218/71469867103.pdfIn PDF document text
    • https://site-1038508.mozfiles.com/files/1038508/zixaroxidebizoni.pdfIn PDF document text
    • https://site-1039271.mozfiles.com/files/1039271/98446165602.pdfIn PDF document text
    • http://sozumorer.sweetnnaughty.ca/uploads/1/3/2/8/132814930/98e2e0f.pdfIn PDF document text
    • http://xakorige.elementalascension.com/uploads/1/3/1/4/131407406/fdd3798c6f.pdfIn PDF document text
    • http://wupes.neuro-flowgroup.com/uploads/1/3/0/7/130738482/nexuduzu.pdfIn PDF document text
    • http://files.bioremediationaquaculture.com/uploads/1/3/0/7/130739653/f45ff14545ce5ce.pdfIn PDF document text
    • http://files.onesmallbitecakes.com/uploads/1/3/2/6/132682655/kijilaxekawefifokepi.pdfIn PDF document text
    • http://jepix.heartofiowabigs.org/uploads/1/3/2/7/132740186/8800944.pdfIn PDF document text
    • http://vutuba.royalmarineser.com/uploads/1/3/1/8/131871787/zamazarasa.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/1/0440/4543/5030/files/nitrogen_is_the_central_atom_in_each_of_the_species_given_above.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9408/8616/files/49685341426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8179/1643/files/36269328991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/96665377594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8857/9233/files/logezilovexizoj.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_off0000574b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574B 5640 bytes
SHA-256: e61cbcf047e93667b9f6d37884a23a45734a83561e89b0be6108e99a0fb56535
font_01_sfnt_off00006a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A84 10488 bytes
SHA-256: 2fe6a63390ff42c546f85b638c6e53fa95855f9319ea1b7cb321d4d8d6eb08f2

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