Malicious PDF — malware analysis report

Static analysis result for SHA-256 2671f9037011e36f…

MALICIOUS

PDF

72.4 KB Created: 2021-02-20 15:40:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ccefdbccd2722895408554ec81e19b21 SHA-1: 6f5e13a2a1c6638b2cf8d4b000d5f33750aa8053 SHA-256: 2671f9037011e36f08c96981798b21473fee10e0e9043c49d0c7bc042892096d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=magic%20mouse%202%20gestures%20not%20working%20on%20windows PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408593/normal_5fde45b9da371.pdfIn PDF document text
    • http://afracheat6.xyz/bird_of_paradise_wildwood_nj_reviews0i5gg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481402/normal_6003416513799.pdfIn PDF document text
    • https://pofitokibifezaf.weebly.com/uploads/1/3/5/3/135394855/9aee50a5.pdfIn PDF document text
    • https://cdn.sqhk.co/rokabumake/HdAq5hf/502935959.pdfIn PDF document text
    • https://cdn.sqhk.co/lasozigur/Jwifxhe/sowerixukovizesiv.pdfIn PDF document text
    • http://rabuvuz.iblogger.org/bcbs_federal_florida_predetermination_form.pdfIn PDF document text
    • https://sesanejaw.weebly.com/uploads/1/3/1/4/131407178/dadimezumonawev.pdfIn PDF document text
    • https://cdn.sqhk.co/xederebat/ifieFhi/d_day_significance_apush.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/hbFticn/63527677068.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381297/normal_601b97e5d199c.pdfIn PDF document text
    • http://mmuuue.space/apple_developer_enterprise_program_license_agreement_has_been_updatedlcrhq.pdfIn PDF document text
    • http://jovumelikas.22web.org/is_diablo_2_worth_playing.pdfIn PDF document text
    • http://tryporte.xyz/zoom_h1_microphone_usb1pzen.pdfIn PDF document text
    • https://cdn.sqhk.co/vivakawibaki/ijigahA/21383360076.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_off0000dcf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF2 5520 bytes
SHA-256: 2a254de208cad4b9efd3f7bd21ff714770f56030ce2a2495d5c6cbc89566f69b
font_01_sfnt_off0000efc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC7 10732 bytes
SHA-256: 92233ea1f52b871e60e14e5689e3b18072bdbc8cfd479468ff02b019e5363a0d