Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bc369084cb755e…

MALICIOUS

PDF

71.6 KB Created: 2021-03-21 21:32:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-03
MD5: ad95aa117be04d8e5a0d40b1981beeba SHA-1: d39131c61e15b57182e9bb0f44674e3c74b24ca1 SHA-256: 22bc369084cb755e0db0c9c58c9582b5291dd6237fab85de23df103a97bf9792
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/123?utm_term=penatalaksanaan+bronkitis+pdf In PDF document text
    • http://ririzobe.medianewsonline.com/sipiguwatilavasebibix.pdfIn PDF document text
    • http://thestablestl.com/gma_news_reporters_namesgkox8.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/tifuboi38vq.pdfIn PDF document text
    • http://metunobe.22web.org/36437795629.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/cap_guidelines_idsa.pdfIn PDF document text
    • https://cdn.sqhk.co/fudikeraz/dT4hdji/jharkhandi_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/angularjs_mvc_5_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/djgjfgh/38323401517.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/scratch_2_free_windows_10.pdfIn PDF document text
    • http://xupenirulavep.iblogger.org/49662889212.pdfIn PDF document text
    • https://cdn.sqhk.co/risosejuze/gdrhgii/catnapper_recliner_manual.pdfIn PDF document text
    • http://vezagoxutejoza.66ghz.com/bupenomadapajigoligoru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kokegewabero.rf.gd/lagu_lee_minhyuk_huta_ya.pdfIn PDF document text
    • http://xikisefux.epizy.com/inductive_and_deductive_methods.pdfIn PDF document text
    • http://xitimevekotumev.rf.gd/9110669338.pdfIn PDF document text
    • http://guxasimedoki.epizy.com/41935891091.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_off0000dcdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDC 5240 bytes
SHA-256: afe683d8607457e1f7457a3428c5f6af723c79584db23e8141fec907fcd52501
font_01_sfnt_off0000eeb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB3 10216 bytes
SHA-256: 3529b6a7f974707d43ce93e2bfbb7449b6afe67770a243d712d2ed954128f3da