Malicious PDF — malware analysis report

Static analysis result for SHA-256 00aa7e289ffd36c0…

MALICIOUS

PDF

73.1 KB Created: 2021-02-20 14:02:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 45a40ca8fb389beb3d0a60c18fdd3b9e SHA-1: 630102e8c61f69ad66e010a07f38ea1a1a0af255 SHA-256: 00aa7e289ffd36c0a5d16f1b9b619ea2bea6aa07cad477b9aca53492ac55867c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=caltech+2022+college+confidential PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4463788/normal_5ff7acaa55eb4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384149/normal_5fcd65110077c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416504/normal_6016d201c8964.pdfIn PDF document text
    • http://clobuss.ru/gaston_armando_gonzalez_bejarano_paiij46f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495043/normal_6028bf79d877e.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/FihjgSU/cable_size_chart_awg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456676/normal_6018405dbb40c.pdfIn PDF document text
    • https://cdn.sqhk.co/maxegugej/Xiiieie/best_sensitivity_for_pubg_mobile_no_recoil_2020.pdfIn PDF document text
    • http://servempieza.site/wekobei7we5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_600fdac963b03.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/a3SBic5/ark_survival_evolved_ps4_gameplay_no_commentary.pdfIn PDF document text
    • https://cdn.sqhk.co/nafumozuwe/if8Phd4/97843421725.pdfIn PDF document text
    • http://small-italy.space/assoluto_mod_apk_1._26._2em6mt.pdfIn PDF document text
    • http://avtoshtorki.shop/friends_tv_show_wallpaper_iphonedz6ri.pdfIn PDF document text
    • http://inscarusa.info/backup_bloc_de_notas_androidrlhvs.pdfIn PDF document text
    • http://jilet2.club/java_core_book12pwz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rejiner/hypertension_treatment_guidelines_jnc.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/33669263005.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_off0000e23b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23B 5188 bytes
SHA-256: 3bcbda0cea20a4443eceeec5486b400393aee5934086e226957e1506cc9ac684
font_01_sfnt_off0000f3df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3DF 10420 bytes
SHA-256: 715e135bc70e48db3b66497ca6444deec6b018ba23c119759f835256d9efa1da