Malicious PDF — malware analysis report

Static analysis result for SHA-256 602f7056b69368df…

MALICIOUS

PDF

69.2 KB Created: 2021-02-21 06:00:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 26246423a477a4904edbf34b364e73cd SHA-1: 78360cf23fbc47112c39535e19e9a30759fcc806 SHA-256: 602f7056b69368dff86b582aecf3fa8ac5c784eba51afac771ffdbf5042825d3
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/aws?utm_term=el+pollo+loco+side+dishes In PDF document text
    • https://cdn.sqhk.co/xogodapap/chgibif/69839576141.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/9g7jcP2/mystic_messenger_anime_planet.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisoritet/iogcBbX/stamford_bridge_wallpaper_hd.pdfIn PDF document text
    • http://nekemepomisares.22web.org/torodiruper.pdfIn PDF document text
    • http://velavedi.iblogger.org/defined_benefit_guide_qsuper.pdfIn PDF document text
    • https://cdn.sqhk.co/vizebika/DOjfjjP/tedamefikuzidofobor.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/eC2hftC/racing_fever_moto_game_download_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/ieiaXhe/small_rechargeable_flashlights_for_sale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://todosix.epizy.com/cracking_the_coding_interview_answers.pdfIn PDF document text
    • http://pexaniruvuwuwe.rf.gd/accelerated_reader_quiz_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/the_bet_anton_chekhov.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/wwe_highly_compressed_android_games_apk_data.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/490475827.pdfIn PDF document text
    • http://pobikifi.rf.gd/ruwinesivibuwetapo.pdfIn PDF document text
    • http://xumusuriwo.rf.gd/22051972533.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/auriculotherapy_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/atrial_fibrillation_guidelines.pdfIn PDF document text
    • http://zexizel.epizy.com/autocad_lt_2019_free_trial.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_off0000d225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD225 4812 bytes
SHA-256: 5375463df2dc3ad20b38ce83db1851d83b7423b4672b64b7eafc682a0ae865ac
font_01_sfnt_off0000e287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE287 11040 bytes
SHA-256: a64e908cd53797a27c042d2d9f41e25c9b6739b63bc17e81d56a21c54b47a4e8