Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cfda2b97e2e6664…

MALICIOUS

PDF

73.3 KB Created: 2021-02-28 18:41:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2afdf0208c4008ca956ec238ee798247 SHA-1: e0e83469a8f7321c2696deb99ea45cc74417b23b SHA-256: 2cfda2b97e2e6664d0cc176f6b81a9079d9243a03e03c7cd429275985c3ee71d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://seumenha.ru/award?keyword=honeywell+quietset+tower+stand+fan+hyf260b+black PDF link annotation
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/5215991.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/can_you_import_keynote_to_google_slides.pdfIn PDF document text
    • http://towajemikof.iblogger.org/fokil.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/biografias_de_los_personajes_mas_importantes_de_la_independencia_de_mexico.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/negugawopibulekuganorevov.pdfIn PDF document text
    • http://sevezor.scienceontheweb.net/pakozudefukara.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/how_to_use_an_arc_trainer.pdfIn PDF document text
    • https://doxizuzipoleri.weebly.com/uploads/1/3/5/3/135323895/4113827d0220a0.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/7748815917.pdfIn PDF document text
    • https://lerasakob.weebly.com/uploads/1/3/2/6/132682990/linibita.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuzadakeju.epizy.com/17387478248.pdfIn PDF document text
    • http://judixipe.epizy.com/dojozape.pdfIn PDF document text
    • http://nirobow.epizy.com/dizumoduti.pdfIn PDF document text
    • http://jujageritoxo.atwebpages.com/us_army_special_forces_dive_school.pdfIn PDF document text
    • http://zutugidod.onlinewebshop.net/present_continuous_tense_worksheet_with_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_off0000decd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECD 6024 bytes
SHA-256: c8122157ab2a689c15ade4b194f0c126d044fbe9247e4f7ed82063a727059147
font_01_sfnt_off0000f358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF358 10812 bytes
SHA-256: 91cf6909672339e427a7f004c3564e960ae1c2229b6cd375e49ed146272f2e09