Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fe3e1043f1726e…

MALICIOUS

PDF

43.8 KB Created: 2020-10-24 16:59:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-01
MD5: c2e1d57f37af5175411aeaecd7aed1d9 SHA-1: cbbd0db19483a5233e5e18f7fb937cfd43a8d62b SHA-256: a4fe3e1043f1726e9205b2b84b729c09aa9f93a30d60109ce981fc166ea42084
164 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=nuance%20pdf%20converter%20professional%208%20reinstall In PDF document text
    • https://runebipunozup.weebly.com/uploads/1/3/1/4/131406604/kinojupebul-fofedonabilu-tudaj.pdfIn PDF document text
    • https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/9c8a6d23.pdfIn PDF document text
    • https://libizewixowu.weebly.com/uploads/1/3/4/4/134432873/997d1.pdfIn PDF document text
    • https://rofuvawe.weebly.com/uploads/1/3/4/3/134363923/52a32e4195005aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376850/normal_5f8c2b91defa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367905/normal_5f87540928119.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378628/normal_5f8c9fc5387c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368952/normal_5f8a251d2747d.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000068af.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000068af.bin)
    • https://uploads.strikinglycdn.com/files/d7d3cb2c-ecce-4489-a810-5bf994a8939a/24163654790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34a97dd6-ec08-4600-8f40-cde173106422/2156354906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/166b7165-96c4-41e3-88d2-430569ceaadb/wefaxodiferikeve.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/13097382872.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/abbyy_transformer_3._0_serial_number_lazm.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/augusto_cury_voc__insubstituvel.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/arquetipos_femeninos_perversos_en_el_cine_de_terror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2743/0059/files/xilav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0544/3736/files/opera_mini_handler_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/msc_botany_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9198/3013/files/fapisaragugameveda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/64307540439.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 extracted file (font_00_sfnt_off000068af.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AF 5372 bytes
SHA-256: e9f959bd6eb8ab7658853fba68c5c4defa9dd5dd8ddd36e71ec03b5dedcd1282
font_01_sfnt_off00007b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B17 11324 bytes
SHA-256: a443863d600a5b573f292ecd7c3ab1087bd2c0efa37f5602bb29812a5ad4cdcd