Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc98d5afb4ef1c97…

MALICIOUS

PDF

69.1 KB Created: 2021-02-24 11:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 548905db0fb0f75d40428baaa743056e SHA-1: 5f3fdd7884184e67d828981a97415d41b9af7ccb SHA-256: cc98d5afb4ef1c979a86037dad1a0993d5c319f1a54b032573f53244689e624c
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://jottigo.ru/wix?keyword=last+week+tonight+elf+spotting+certificate PDF link annotation
    • http://faceit.su/extenuating_circumstances_form_city_universitysijls.pdfIn PDF document text
    • http://doucheop.xyz/youre_in_charge_memesywqb.pdfIn PDF document text
    • https://cdn.sqhk.co/dufukeraj/emgPQhg/jewel_word_of_the_day_today.pdfIn PDF document text
    • https://bodovusinorone.weebly.com/uploads/1/3/5/3/135347185/xepaluzotabape.pdfIn PDF document text
    • http://teplotronic.ru/amplificador_push_pullw9d8p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xajetizefo.rf.gd/4091863207.pdfIn PDF document text
    • http://wibenuke.epizy.com/flipkart_guess_what_answers_trick.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/61924749782.pdfIn PDF document text
    • http://jofikajanuxepu.epizy.com/natizizirunewises.pdfIn PDF document text
    • http://wefuzage.epizy.com/publicly_held_company_annual_report.pdfIn PDF document text
    • http://geduzesibasax.epizy.com/just_and_unjust_laws_examples.pdfIn PDF document text
    • http://biborufa.epizy.com/84088977442.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/metformina_oara_que_es.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/news_reporter_dies_of_blood_clot.pdfIn PDF document text
    • http://lorabedujeweb.epizy.com/mastering_biology_chapter_48_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_off0000cfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBD 5372 bytes
SHA-256: bcb92f4182574d6e396d9c5a089174020d05d5c8e7b3a31e6e88c1294e5c3d89
font_01_sfnt_off0000e224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE224 10924 bytes
SHA-256: 7437df9e7b7ba73ee19abb2a913401149f29efb7d45fc7ec11b8f11ac4cf2edc