Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7f543aabeffbb2…

MALICIOUS

PDF

46.3 KB Created: 2020-10-23 17:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: c3e6caf076977003c507b1770b3aa71a SHA-1: a0ca57453f55aee0bcf8712149e291e794a68797 SHA-256: cd7f543aabeffbb2661195ded5d87699e31db54e80e17635e6e582c684d3faec
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://gettraff.ru/wb?keyword=audit%20maternal%20perinatal%20adalah%20pdf In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://zajefepitav.weebly.com/uploads/1/3/4/2/134266194/jifojajibunujepepis.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/wupozowefunalenem.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/31a910b56c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388067/normal_5f8e8fca42f73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392867/normal_5f8eb1901be75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376866/normal_5f8ab9f331f8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365545/normal_5f87228e892e0.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/8985587.pdfIn PDF document text
    • https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/7548099.pdfIn PDF document text
    • https://zewubonorow.weebly.com/uploads/1/3/1/3/131398185/0efa7.pdfIn PDF document text
    • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/8850937.pdfIn PDF document text
    • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/ruvewa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/kotujutimesot.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/67083124765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fee7227-7ddd-4fb9-8e32-1f50df3f721f/13475988216.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3de98c43-2265-4abf-9452-4c1608e712a4/jopolozowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/053e11b3-110f-43f9-bf0b-be76a7a6e1d6/32193450759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85dc9a06-5272-4c51-8d53-d086c37750e4/gogivuselulutizib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8cb6a20-cd95-4ba2-b328-75989fee89e2/37599315181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b2313df-c4fc-4217-84cf-5b50aef1b1b9/danudogokumotikagubunif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b339eb19-00cf-4052-a9b7-19830c4295db/tuxagugi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3023dba3-85e6-40b0-a188-f5d8e471066c/62097295367.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_off000077cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CC 5092 bytes
SHA-256: 4bbb28029111850376e1f61c0bf089f2b3e570650512424ffcd051c9c4850013
font_01_sfnt_off000088f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F0 10208 bytes
SHA-256: b402710bf6384cabec72b2b4c8f70c3fd153fba855b73473256f54d5772cafc6

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