Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ae7edce4defb20…

MALICIOUS

PDF

73.0 KB Created: 2021-03-05 08:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2bd5b6c2fef09b652205cec8272ec443 SHA-1: 05e92349bb5dc462bbc4b341fbdd92ca0c0e13c6 SHA-256: 59ae7edce4defb20d816176e06cf55d45abf02248a77d83e55df453023e4f876
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vilenefex.ru/award?keyword=king+kutter+finish+mower+spindle PDF link annotation
    • https://sifobidegi.weebly.com/uploads/1/3/0/8/130874382/6369788.pdfIn PDF document text
    • https://lizitizesibegip.weebly.com/uploads/1/3/4/6/134685526/pijir_zevopawejenal.pdfIn PDF document text
    • https://fusajebotiv.weebly.com/uploads/1/3/4/3/134320253/kofare.pdfIn PDF document text
    • https://wojuguzibuliru.weebly.com/uploads/1/3/4/8/134896427/kukufule_fuwemobazilinom_juvuwa_vudunoni.pdfIn PDF document text
    • http://decideyouself.fun/research_philosophy_ontology_epistemologyrypos.pdfIn PDF document text
    • http://kobodesuwid.getenjoyment.net/pabavodorifadimapabi.pdfIn PDF document text
    • http://richmaya.site/how_to_clean_mr_clean_spin_moprhukz.pdfIn PDF document text
    • http://zusagukitu.mywebcommunity.org/20486419867.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/how_to_cook_costco_ham_with_glaze.pdfIn PDF document text
    • https://tuxedibuzi.weebly.com/uploads/1/3/5/3/135350702/4ed45823c15d.pdfIn PDF document text
    • http://sandwichhq.club/namuranoxaprc7m.pdfIn PDF document text
    • https://timakopazasiri.weebly.com/uploads/1/3/4/4/134445807/kever.pdfIn PDF document text
    • https://zudovizu.weebly.com/uploads/1/3/4/3/134338339/fdde3b4ae3.pdfIn PDF document text
    • https://jevefelenop.weebly.com/uploads/1/3/0/7/130775498/rugizujamovovup.pdfIn PDF document text
    • http://nakanilo.club/julebinn3og0.pdfIn PDF document text
    • https://bebibamo.weebly.com/uploads/1/3/1/4/131438385/xewowemode.pdfIn PDF document text
    • http://pedaxofanor.mywebcommunity.org/what_book_comes_after_omen_of_the_stars.pdfIn PDF document text
    • https://zapubotugor.weebly.com/uploads/1/3/4/6/134635013/mirigagive.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6773cb8-b174-4d33-a287-e0e349cb4579/cloud_security_alliance_cloud_controls_matrix_represents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fadcb00-68ea-4240-a764-adb140c5c473/8128409928.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_off0000e17d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17D 5368 bytes
SHA-256: fee8174d9cf927bd446ebd48c8417b5dabe72c309ceb0e7db28c78b719939ba4
font_01_sfnt_off0000f3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B3 10280 bytes
SHA-256: d76005f4646cd48e0bb81b3a35e44a0603a56113b74d22314e4af52e4dc3bfb2

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