Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f808714e46d3dcf…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 08:47:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a846c578321851a09edc4ee00c1c8d29 SHA-1: 5868bb76e06f364720014f5b0c56c4d1e5ccea60 SHA-256: 8f808714e46d3dcfd8f430e9e2b4ce81848ff7e556ad907324c58a490087fd01
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=how+to+find+gearbox+code+vw+golf PDF link annotation
    • http://form-copyrightservices.com/cuneiforme_medial_fracturabrjha.pdfIn PDF document text
    • http://betflixguvenilirmi.com/sbir_submission_dates_202018ifl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484359/normal_5fde2a5564284.pdfIn PDF document text
    • https://cdn.sqhk.co/rawegili/UdT7Sfe/15752198367.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482617/normal_5ff0d91ce5feb.pdfIn PDF document text
    • http://nubolutlion.xyz/35515814292r6zw.pdfIn PDF document text
    • https://cdn.sqhk.co/xibidodoko/aagEohj/wugobisumokaxonezu.pdfIn PDF document text
    • http://netewe5.xyz/how_to_remove_rust_from_weber_grill_grates1lekv.pdfIn PDF document text
    • http://emirofficialzm.com/635981600728a3nw.pdfIn PDF document text
    • http://flipping-car.online/monster_prom_pr_agentk5rg6.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/idjgT46/how_to_slice_shapes_in_cricut_design_space.pdfIn PDF document text
    • http://samelike.site/subtypes_of_antisocial_behavior_questionnaireb861z.pdfIn PDF document text
    • http://blacktea.space/beauty_plus_camera_app_installd0iza.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/pujirageg/66310480886.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/nisiw.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_off0000df36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF36 5332 bytes
SHA-256: 00769eae46cdd2d4b7d5468c38ff64b4794a8801db690959bc961ed7bc11502b
font_01_sfnt_off0000f188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF188 10976 bytes
SHA-256: 8e5ecb521cd0ade7937c57f5515fd9b86853c648f81ba69a21c7c43a10ad5e28