Malicious PDF — malware analysis report

Static analysis result for SHA-256 974c4c54db547a19…

MALICIOUS

PDF

32.0 KB Created: 2020-11-09 07:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c7ed3063572575dddfbc04c3d2654809 SHA-1: 2a65344d2a8a3d2f0776166a90da6976895785be SHA-256: 974c4c54db547a1955ca19fa6122512d6e84e880b8e407b73b655f3e95724a7f
86 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 32 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=solaredge+inverter+10000+user+manual PDF link annotation
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/3e472a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403276/normal_5f915bdd38314.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410678/normal_5f93d06fdc61d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418587/normal_5f985f3edefe4.pdfIn PDF document text
    • https://kudojazejugir.weebly.com/uploads/1/3/4/3/134322101/b1d9184.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://tutariwanop.files.wordpress.com/2020/11/dedazabexoroju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/457ef4af-1412-43b5-b1b8-1438ed0338e3/tugeguzunijos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/908ed0cb-520c-4a4a-bf1e-a31640b79e1d/vojiroxigigifabuva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4df42a7d-71dd-475c-9983-afbeba8bb0cf/gawamibefeti.pdfIn PDF document text
    • https://kutoxuzute.files.wordpress.com/2020/11/nifedezogutetasumeserav.pdfIn PDF document text
    • https://japegotof.files.wordpress.com/2020/11/zediminoregujivot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861cd9d6-d260-44b9-9651-d2455c758436/tom_crean_hat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e42a2d1-1df3-4dac-b0dc-4e7f49b6fd32/chinnari_pellikuthuru_serial_in_telu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d6891c9-cba4-42d3-8f1a-3b32e7e44f78/weekly_idol_ep_320_eng_sub.pdfIn PDF document text
    • https://xisevijako.files.wordpress.com/2020/11/uniformly_accelerated_motion_model_worksheet_1_answers.pdfIn PDF document text
    • https://towuputuwome.files.wordpress.com/2020/11/robeledabikikulogowiparoz.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_off000044c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C5 5504 bytes
SHA-256: 4cc8bd11dcdbaaf7fb2ed8263c51db9dd10e7ff12d62ef57bef4d452ccde7e9d
font_01_sfnt_off0000576d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x576D 8180 bytes
SHA-256: 906a003526cd2db8cda9f6551f02c19036aa524a496c18f464218e0c4fa4e600

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