Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3856be30486577d…

MALICIOUS

PDF

74.1 KB Created: 2021-03-20 14:23:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f38827986eef2e2eabb60e66d34c79f SHA-1: 2ed0c3d9856cef757dcbcc9129b2267f5073ab63 SHA-256: a3856be30486577d9aa490cec46398c60bf67a3c58ac249f3c3cd07913617600
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. ClamAV detected this as Pdf.Phishing.Trojan, and ML classification strongly supports maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to redirect users to compromised or malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://mezovuduw.ru/wix?keyword=murray+avenue+school+larchmont+ny PDF link annotation
    • https://cdn.sqhk.co/jujirepak/jeyZKjh/fluxx_fx3_led_hoverboard_ul2272_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/kigoxeni/aibvhdq/mivadagujebamevawi.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/ieCIigf/22040571628.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/lasexiduvula26hip.pdfIn PDF document text
    • https://cdn.sqhk.co/doburazax/eB4Nvja/easy_cursive_handwriting_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/jRGtu24/2799602502.pdfIn PDF document text
    • http://itclick.pro/menupeze61uh4.pdfIn PDF document text
    • https://cdn.sqhk.co/godezixibufo/dhgjiMI/subeputigupade.pdfIn PDF document text
    • https://cdn.sqhk.co/bitowiso/aUuLtgg/luzonoweguziwazid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450884/normal_6035c7a768f2b.pdfIn PDF document text
    • http://bukenisefino.mygamesonline.org/social_connectedness_theory.pdfIn PDF document text
    • http://eurofamily.pro/bexebilazotiux6h.pdfIn PDF document text
    • http://xevojifixifepi.scienceontheweb.net/talowojivimimagokudaja.pdfIn PDF document text
    • https://cdn.sqhk.co/gulanuwe/KLggdhj/zexikufiguzuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446283/normal_6048a149b81e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408001/normal_5fecd31f606fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414515/normal_5ffb67656d23a.pdfIn PDF document text
    • http://walkover.me/cosatu_policies_and_political_affiliationsa1bny.pdfIn PDF document text
    • https://cdn.sqhk.co/netesatova/gchaBic/99028076466.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://donijexufenu.onlinewebshop.net/how_do_i_know_what_size_kenmore_refrigerator_i_have.pdfIn PDF document text
    • http://tarepos.onlinewebshop.net/16838533048.pdfIn PDF document text
    • http://kopolug.myartsonline.com/what_type_of_government_controlled_the_soviet_union.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_off0000e26f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26F 5204 bytes
SHA-256: ec643f2f1bd5e5ef71f0fa4fa79bc43a4100af75401d48b4555486b03ef859f7
font_01_sfnt_off0000f412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF412 11200 bytes
SHA-256: a31291da8bf545462f16637d9ff689a88918caf8e0b4857cdd2cd248ecf23696

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