Malicious PDF — malware analysis report

Static analysis result for SHA-256 efc8f650cd4d617a…

MALICIOUS

PDF

45.1 KB Created: 2020-10-16 00:23:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: de645345d0c9066a0c65abcb542a3bf1 SHA-1: 7c90849b7e6eab914c4a75c91812d4fa41ff7396 SHA-256: efc8f650cd4d617a7a336d2e2fefa02169dc743843509998f098d3f5ac4320be
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://cctraff.ru/strik?keyword=global+reporting+initiative+gri+sustainability+guidelines In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f885fed24fcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366949/normal_5f87595db9d4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f870e5ceb3e9.pdfIn PDF document text
    • https://legadiduzavof.weebly.com/uploads/1/3/2/6/132681829/xanubalunagu_pajixile_datekuxe_vamujomerino.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/2651808.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/tomenodu.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/bagixakas_morazejut.pdfIn PDF document text
    • https://site-1040670.mozfiles.com/files/1040670/94246825177.pdfIn PDF document text
    • https://site-1038753.mozfiles.com/files/1038753/potumirukibafosa.pdfIn PDF document text
    • https://site-1042089.mozfiles.com/files/1042089/kibazexe.pdfIn PDF document text
    • https://site-1039837.mozfiles.com/files/1039837/fewadugejo.pdfIn PDF document text
    • https://site-1045398.mozfiles.com/files/1045398/53900489234.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/1/0487/9804/0229/files/60688435930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6047/3241/files/18727862609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/9377/9143/files/86979850536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3681/0152/files/kenmore_dishwasher_wiring_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6109/1221/files/disadvantages_of_urbanization_in_points.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd813d48-c947-4467-b3f8-33b30c480a79/nomunivosuluropabuluxodo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2556fc40-e91f-4ac4-af0f-3423ac5a64c5/30861212249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35465410-0133-4697-95af-cd5f5300e6de/kobigigizewewar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a7ee67-52cb-44f7-b96b-a1b349ace7d9/povazudefusisapoka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/035e23fa-423a-4222-a64b-16679fc8074e/lemogoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e3e575f-3d78-4da4-9a71-6d7985b8344a/65837092020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ee2953d-0c17-4560-babd-3f4873f16c10/1385902432.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000710d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710D 5460 bytes
SHA-256: 0e823fd7eede73bdef7660874e2bc10fe3afa648f3a300cf91da37bc3d2010c8
font_01_sfnt_off000083b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B5 10176 bytes
SHA-256: 58b21fa41c40457a02dc05594be219e1d2ce2019468519b98a268f685ded2692

Open this report in the interactive analyzer, or submit your own file for analysis.