Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf5ae5e8ae38eb07…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 09:22:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 011846834fb05783cd0aadf6eabe9bc8 SHA-1: 2f00127add0b8502b163ee0c13b03b644c1a0e02 SHA-256: cf5ae5e8ae38eb077ff4f74ceef50158a67a585a780b8137f9059983dd99f181
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://xezojetit.ru/award?keyword=cub+cadet+1045+deck+removal PDF link annotation
    • https://vosuzupitozom.weebly.com/uploads/1/3/5/3/135313705/vesusemabubefumuguto.pdfIn PDF document text
    • http://xesapuwax.mywebcommunity.org/free_crochet_patterns_for_baby_blankets_easy.pdfIn PDF document text
    • https://debarinibew.weebly.com/uploads/1/3/0/7/130775297/8735394.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/jeZhbzQ/dosixidopi.pdfIn PDF document text
    • https://cdn.sqhk.co/jodariwem/zbLCjfU/ligavovexukip.pdfIn PDF document text
    • http://jovopomutulilo.medianewsonline.com/practical_english_usage_by_michael_swan_price.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/g6GTjhv/john_gba_cheats_pokemon_fire_red.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420239/normal_5fd5f02a4a318.pdfIn PDF document text
    • https://katopogovalasa.weebly.com/uploads/1/3/5/4/135401177/vanugujuz_mader.pdfIn PDF document text
    • https://tovumanaxi.weebly.com/uploads/1/3/5/3/135392352/wirej.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/DEyjgja/10110827502.pdfIn PDF document text
    • http://jogemijafiw.22web.org/sample_answer_to_complaint_federal_court_california.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501356/normal_5fc7c851c0e51.pdfIn PDF document text
    • http://fesotisifofil.mygamesonline.org/phonak_brio_3_r-r_price.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://busapow.rf.gd/what_is_the_product_cost_per_unit_using_absorption_costing.pdfIn PDF document text
    • http://seladetitogar.epizy.com/wenija.pdfIn PDF document text
    • http://fazemiwasagi.epizy.com/98768149755.pdfIn PDF document text
    • http://rewoponoxeki.rf.gd/42397819516.pdfIn PDF document text
    • http://rotufixijisadi.onlinewebshop.net/how_to_load_a_primo_water_dispenser.pdfIn PDF document text
    • http://pumugotodag.epizy.com/how_to_program_remote_to_soundbar.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_off0000dcfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFB 5484 bytes
SHA-256: e770d85a60c99710d4970b6c0ce21e1228c298c8adc17e2cafc62b53bc843ab8
font_01_sfnt_off0000ef9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9C 9800 bytes
SHA-256: edd0d39ca826250c24cb15c4d01881e0710ded1176f90a19c5f58732dcfb547d

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