Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c4e1247fb9e89d5…

MALICIOUS

PDF

67.8 KB Created: 2021-03-13 19:20:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 871a07077dbb1d6e3f12e027c0a70502 SHA-1: 4f1fa5506d4691c0b0f8c0b39942f6e45efd2c1e SHA-256: 6c4e1247fb9e89d5d1a102a81b93861fe2b0b23d136f3ac300951e3f0ee6d675
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/wix?keyword=a+conocernos+capitulo+2+cultura+answers PDF link annotation
    • http://waystep.site/kung_fu_panda_3_2016_trailer06zgi.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/what_are_defensive_driving_skills.pdfIn PDF document text
    • http://vetebozo.mypressonline.com/best_veronica_roth_books.pdfIn PDF document text
    • http://talajifit.mywebcommunity.org/rukinadopudovexafetusupet.pdfIn PDF document text
    • http://detonic-ufficiale.website/how_old_were_the_harry_potter_cast_when_they_started_filminghql9g.pdfIn PDF document text
    • http://bluebadgeform.com/249787426185j3ic.pdfIn PDF document text
    • http://tradebot.space/forgotten_realms_collectionye015.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gamutazuzores.epizy.com/winawudim.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/gulam.pdfIn PDF document text
    • https://eed7fa7e-4f31-4ba6-8269-e73f07ac74c5.filesusr.com/ugd/93374d_b9d4c0a884cf4d208d270654b1093081.pdf?index=trueIn PDF document text
    • https://9e7b01ce-91ce-414a-93c5-ade8df4b7359.filesusr.com/ugd/cfbfd2_60750ae5a7f94970bdbe1bddbfb7ae51.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b53fdb16-c70c-41e9-abf4-d5ca6444aba1/my_cuisinart_coffee_maker_is_clogged.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/biometric_security_system_project.pdfIn PDF document text
    • https://12a3aa02-022d-4218-8efb-90aa4388683d.filesusr.com/ugd/6dfd9b_193f38c1bfc34dca9373073309bd793b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/db319d2e-f986-4ca3-9846-92e574f06c55/95504266874.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25f4e403-be43-4249-9011-35f3e6a93117/73843553368.pdfIn PDF document text
    • http://vedixemalirugi.atwebpages.com/learning_styles_test_for_students.pdfIn PDF document text
    • http://vumesurev.epizy.com/arduino_nano_board_price_in_sri_lanka.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_off0000cb5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB5C 5140 bytes
SHA-256: 4e6d24ade39ba4a7985b97efc2be8cc74cea3d6d9826a12da22b82754fd31da4
font_01_sfnt_off0000dcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFC 11020 bytes
SHA-256: ab201860125720dde3ec7b5936615d59dd612a1e1ef10d02402348bb37f5f5c9