Malicious PDF — malware analysis report

Static analysis result for SHA-256 0274618562513587…

MALICIOUS

PDF

66.6 KB Created: 2021-02-12 23:37:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f96f99653ff9a28126e5748530cf2084 SHA-1: a310eb14a5b7b7988f5c3a3214a17c01560032f3 SHA-256: 0274618562513587c17eedec26047eb82510033ab603de100afcc24627bf8ba4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=series%252Fparallel+circuits+worksheet+two+answer+key PDF link annotation
    • https://wemivera.weebly.com/uploads/1/3/4/3/134311686/jisipevowamozumose.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/cKicXR8/fun_party_word_games_for_adults.pdfIn PDF document text
    • https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/1508140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416131/normal_6005bd59f2934.pdfIn PDF document text
    • https://bugotenopiziwa.weebly.com/uploads/1/3/0/9/130969298/feguzedoxelivig.pdfIn PDF document text
    • http://se-mrush.com/donation_request_template_freef9c7z.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/akW0jgc/kogupikedosapufipu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370762/normal_5fe317ad36b65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460076/normal_5fdc207cb391b.pdfIn PDF document text
    • https://numojenemisuben.weebly.com/uploads/1/3/2/3/132303045/7e4994bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459025/normal_5ffdc212909a9.pdfIn PDF document text
    • https://cdn.sqhk.co/xodakebebit/ieIoiby/gelifuruzuparevenisepivo.pdfIn PDF document text
    • http://7evenrp.ru/kotonirajyn24z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493589/normal_6014f25757c5b.pdfIn PDF document text
    • http://moreprodukti.com/127146796597h5wb.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwejujorod/Fkqehdw/fobegu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c92e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC92E 5416 bytes
SHA-256: 9fdca2c782232ac4c6f514cf439d0792bb905234a332f337b93e17d166c977b6
font_01_sfnt_off0000dbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAF 9628 bytes
SHA-256: e34410a4c792a2afea27d51458495007b303a753ccdb352ea44f4822eee2d2dd