Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e120c733fed7219…

MALICIOUS

PDF

73.4 KB Created: 2021-04-01 01:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f13679de01802ce4eab4c6d0d44ab19d SHA-1: fa70e40e2a3198e560cfcf27b4f5c70fd263734f SHA-256: 3e120c733fed72190a4720407917f9902879ddce39f16244c88faf63f576ed88
126 Risk Score

Malware Insights

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

This PDF was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, including one pointing to 'bologen.ru', suggesting it's part of a link farm designed to redirect users. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution scheme.

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://bologen.ru/wix?keyword=pcl3+lewis+structure+resonance PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443326/normal_603289691c0a5.pdfIn PDF document text
    • http://itabody.space/direct_and_indirect_characterization_worksheet_answers4k6y0.pdfIn PDF document text
    • http://it50disconto.info/miravezajusexahzzvo.pdfIn PDF document text
    • http://1-bog.ru/inspiron_3847_memoryt516t.pdfIn PDF document text
    • http://honey-love.ru/grade_12_economics_textbook_ethiopiahzx5r.pdfIn PDF document text
    • http://vseti.life/real_madrid_vs_bayern_highlights_2018mwv4k.pdfIn PDF document text
    • http://kawlites.online/google_search_history_delete_kaise_kare7kmb3.pdfIn PDF document text
    • http://azorocheat6.xyz/ark_survival_evolved_dododex_oviraptorcf4ix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404297/normal_6056efdf5ada8.pdfIn PDF document text
    • http://9gusevshop.website/52215743285cxwrh.pdfIn PDF document text
    • http://citruss.space/xugumukigiduzola126x8.pdfIn PDF document text
    • http://promooffer.site/voditedajo36c4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501989/normal_6031b9bb6307b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b147a2f3-58af-4013-9def-597e86e94513.filesusr.com/ugd/47d6bb_8250934f88314bb89fd5e9fc3e5fc1ac.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ced7ea4-6a84-4e65-99fa-0cf5928823e5/lujumavotufemofuru.pdfIn PDF document text
    • https://d0a6b1b1-1773-4622-8b5e-0ab5990a7ed3.filesusr.com/ugd/b90ba1_26b7b1c734d64d74ab05d203ea9ddb60.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcfbea4a-ef1b-4987-b2d6-16826fd357b6/xijulevopixi.pdfIn PDF document text
    • https://425e2ee7-996f-4c6d-a593-b44a2a39b733.filesusr.com/ugd/bb05c1_1117f460e1374f12bc02222fab990d22.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9996afe2-c60d-4192-94da-63f84686ae05/angles_in_triangles_worksheets.pdfIn PDF document text
    • https://6c8ebe11-725c-420b-823a-68bc39d02ad2.filesusr.com/ugd/3e87bf_9ac725413a1d48f4b685b13d533299cb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb81d797-e7fc-413d-a2cc-e9ad3df98736/como_falar_bem_em_pblico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f058248f-15b5-4cb2-8259-9ab1f0aab42c/how_to_get_the_best_fuel_mileage_out_of_a_5.9_cummins.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_off0000e19f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE19F 5048 bytes
SHA-256: 3c6e851d84daf00bae76c7cb63f9ef04a9bee6c7dc15801c644947ef31b0dbb9
font_01_sfnt_off0000f2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EB 10436 bytes
SHA-256: 4bc00c0a4ff351ac3c6fe50972d9b9f791b7a7a0ee9dd040c07600c1c987c72f