Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef4a0d041ebfd44…

MALICIOUS

PDF

71.7 KB Created: 2021-03-05 04:26:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ea94be6b2b986cc22422f72d2f486f24 SHA-1: 8fd61cdf62560a1571ba2c2b2ac5247345fbae17 SHA-256: eef4a0d041ebfd44c796f7bd45798d2c31b534cd559e3c50a690f20928b986fe
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://gimoguvi.ru/wix?keyword=hunger+games+novel+study+guide PDF link annotation
    • http://scarcebook.com/zitefujotazomebawad5jinv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407795/normal_603ec43f844d4.pdfIn PDF document text
    • http://jadebey-x.com/how_to_use_the_round_loom_to_make_a_hatqaj80.pdfIn PDF document text
    • https://cdn.sqhk.co/gusisitixinu/hafG7hj/wordscapes_level_8049.pdfIn PDF document text
    • http://klokisik.space/nezanujugagob8lid.pdfIn PDF document text
    • https://cdn.sqhk.co/supopelax/VORgf4n/sleep_nature_sounds_music_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kapapomabu/NjbijgL/gewogexeduru.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/balancing_chemical_equations_practice_problems_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/waxusuxagaki/rhjChbC/rajilujad.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/pijabozufegilejemiwubulam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417815/normal_5ff65d59b5332.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2ddc7431-ff91-46e9-9708-195efd6cc195.filesusr.com/ugd/ffe0d3_2b1e69ab90154a6d96ddd28256e20f53.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/moving_averages_worksheet.pdfIn PDF document text
    • https://97a45c9e-1ab5-462a-bfe2-fded34b9a8b9.filesusr.com/ugd/b50c55_b16bae9c597e4efcacabe9b18bc12b85.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bugutaj/namopavalovuson.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/2003_ford_focus_zx3_tire_size.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/la_casa_de_bernarda_alba_personajes_hijas.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_off0000dc48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC48 5268 bytes
SHA-256: 416c11fee5619dc2bf31e8366a134c301a5997099a1832af80fc9819b133e7e5
font_01_sfnt_off0000ee28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE28 10380 bytes
SHA-256: 51adc565d43a00d40a19a347fb736aacff085a41bd88b3a3c6af2c795d418cd0