Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5dfe1ede9bec12b…

MALICIOUS

PDF

67.5 KB Created: 2021-02-09 04:38:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 307029c7e4e49d85698e498bbbf87323 SHA-1: 855e25e69ca0f894fd9657d5a0ae9ffbf91384ec SHA-256: f5dfe1ede9bec12b7ceeb0a74b795e6dca1b1fc2adecc32bfe927b9980142dea
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://baarspo.ru/wb?keyword=avatharam%20movie%20%20tamil PDF link annotation
    • https://nepokotivo.weebly.com/uploads/1/3/2/8/132814168/gebusagur.pdfIn PDF document text
    • http://strapslap.online/nuvover4mj1l.pdfIn PDF document text
    • https://jewukezi.weebly.com/uploads/1/3/0/9/130970006/rubiwawabev_varesa_duseramiv.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/5phe6cu/easy_birthday_cake_decorating_ideas_for_adults.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/7JEj8mg/26829389384.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372987/normal_5ffbbaa86cdd1.pdfIn PDF document text
    • https://dorizusedi.weebly.com/uploads/1/3/0/7/130776489/wiginomumitiwul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371790/normal_5ff768b312d0d.pdfIn PDF document text
    • https://buputulu.weebly.com/uploads/1/3/0/7/130738697/41d52f38a8a1.pdfIn PDF document text
    • http://thesimplycompleteseries.com/throwing_knife_templatep3bjd.pdfIn PDF document text
    • https://cdn.sqhk.co/rugugojeba/geLQN9J/interlocked_increment_c_not_working.pdfIn PDF document text
    • http://requiredjokblog.com/google_sheets_balance_sheet_templateh23vv.pdfIn PDF document text
    • http://tricitysikhs.com/3346845980qf9dd.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuvimi/mrx3jbK/ark_survival_evolved_xbox_one_split_screen_review.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/jevelel/limiting_reagent_problems_with_answers.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_off0000cdbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBE 4796 bytes
SHA-256: bcb5615143139c9261c3436caad231a842ce3b51b9f6aa6afe780023b1b3368e
font_01_sfnt_off0000dde0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE0 10460 bytes
SHA-256: 6a15c1d39d574eee3453190aa5b826c31f0025aa2236a92de7cad65bde13a4e6