Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12aa5fe4447c8ed…

MALICIOUS

PDF

68.0 KB Created: 2021-02-27 22:03:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6fe20d50cfee94032938bbe8fa2ddcac SHA-1: c6a295d840699218a71bec7ab5625e55cc42ebe2 SHA-256: f12aa5fe4447c8edb7bd79acd454b0ade43a5492f5cfff482100e99a7b882e22
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://botokaw.ru/wix?keyword=nc+license+and+theft+bureau+avent+ferry PDF link annotation
    • https://cdn.sqhk.co/sinemajud/jdgeZgg/25373125957.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/bdedgfq/stern_pinball_family_guy.pdfIn PDF document text
    • http://xolidila.iblogger.org/classification_of_plants_and_animals_study_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/DggJgf1/motorcycle_wallpaper_for_walls.pdfIn PDF document text
    • https://taxusuxegob.weebly.com/uploads/1/3/3/9/133997122/dutotizanexiw.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/quran_malayalam_translation_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423428/normal_5fe435c865ccb.pdfIn PDF document text
    • https://boxorefo.weebly.com/uploads/1/3/0/9/130969922/bugariwowesir_vuwaboraxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393033/normal_6005905534509.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopaji/iamwVij/first_grade_writing_prompts_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/gehdFhe/69757600265.pdfIn PDF document text
    • https://mudizuponiwox.weebly.com/uploads/1/3/2/7/132740987/lobuxexeloviv_gagavolodupave_gabixokepisepep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473640/normal_60196732a8ef0.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/mainstay_computer_desk_instructions.pdfIn PDF document text
    • https://fewupebotugap.weebly.com/uploads/1/3/0/7/130739906/8099820.pdfIn PDF document text
    • http://zufonirawanowo.iblogger.org/android_google_assistant_tutorial.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuxixatizoxop.epizy.com/krishna_cartoon_wallpaper_free.pdfIn PDF document text
    • http://bolirazebaf.myartsonline.com/maze_runner_the_death_cure_full_movie_in_hindi_download_filmyzilla.pdfIn PDF document text
    • http://jomosufikopa.rf.gd/java_programming_basics_udacity.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_off0000cd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD71 5380 bytes
SHA-256: 3a59e162932e379551b69332ac9ced93d86afc7d50df7539db6d49e37997dd17
font_01_sfnt_off0000dfc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC9 9720 bytes
SHA-256: 956817062936f3af41d010b3efbe4941167b3f229aacc28251cd72588bc77af7