Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2c01a5d54d2f8e8…

MALICIOUS

PDF

72.0 KB Created: 2021-02-27 05:05:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 89b5d622cf9ac1aed28a0cfa7e9e0422 SHA-1: e71d900b94ac3d3d7edbd6c60003ab89b7cff8b1 SHA-256: a2c01a5d54d2f8e8d5280324f5bd957d863a69a6b64eafcf29f785e5686015da
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://vilenefex.ru/wix?keyword=blink+xt+camera+user+manual PDF link annotation
    • https://fovivijidilel.weebly.com/uploads/1/3/4/8/134888041/dovenefulado.pdfIn PDF document text
    • http://xelasurugopu.mywebcommunity.org/can_i_add_a_jitterbug_to_my_verizon_plan.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/cen-tech_battery_charger_error_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/xKhexig/70988472086.pdfIn PDF document text
    • https://cdn.sqhk.co/fejukomus/jcg0hdm/crackle_paint_with_elmers_glue.pdfIn PDF document text
    • https://mawetifatine.weebly.com/uploads/1/3/2/6/132683292/xazuxapatular.pdfIn PDF document text
    • http://topukovatawosu.sportsontheweb.net/masterbuilt_electric_turkey_fryer_and_seafood_kettle_parts.pdfIn PDF document text
    • https://cdn.sqhk.co/mixirulizab/hfjjcjC/zulamowuxixaza.pdfIn PDF document text
    • https://cdn.sqhk.co/jokalirubore/jh2OibQ/racing_in_car_2020_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/ihhhDjh/business_manager_banking_jobs_london.pdfIn PDF document text
    • https://sozatoma.weebly.com/uploads/1/3/4/4/134484551/sizigodar.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/kewuxejikiwe/best_free_audiobook_sites.pdfIn PDF document text
    • http://litopuputorer.rf.gd/28993636668.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/alto_saxophone_chromatic_scale.pdfIn PDF document text
    • http://gumomexad.onlinewebshop.net/nail_places_that_are_open_today_near_me.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_off0000df0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0E 5128 bytes
SHA-256: fc30475ebbf57175ff1756c02173d695c9f2c75ff79f3a5e58aeb798e77eb6f1
font_01_sfnt_off0000f068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF068 10196 bytes
SHA-256: 04a388b4d6f5f60d9b67e801ce61b2be81bc655305c6ec9ea1f6165cc53967f0