Malicious PDF — malware analysis report

Static analysis result for SHA-256 999e02c016d313a3…

MALICIOUS

PDF

72.5 KB Created: 2021-02-24 23:55:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 00dfda5701e609e9695c40bec166408e SHA-1: 5a82d533cc21392bcfe88cdbba1b0f55cace779b SHA-256: 999e02c016d313a30e48eb18f8b60fe76103f8408b77e8164a4c44c838f8f559
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/award?keyword=how+to+draw+anime+cat+girl+easy PDF link annotation
    • http://gsmall.space/xunuxeggvup.pdfIn PDF document text
    • https://tinedejoditof.weebly.com/uploads/1/3/5/9/135971312/xogidunamam_kekofurena.pdfIn PDF document text
    • https://lupolaluxu.weebly.com/uploads/1/3/2/6/132681144/pixat.pdfIn PDF document text
    • https://dujezipiver.weebly.com/uploads/1/3/4/6/134610991/4161259.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/iagghf1/goralixavunolimofepagaxu.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/Agejifg/1875342935.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/jhz9uBj/97465633709.pdfIn PDF document text
    • https://wirupexulabajes.weebly.com/uploads/1/3/5/3/135322132/e8af64f0e788e68.pdfIn PDF document text
    • https://zinuwikisabarek.weebly.com/uploads/1/3/4/6/134679236/bdebb835bb6.pdfIn PDF document text
    • http://teenagetutor.net/31941848140a0dmj.pdfIn PDF document text
    • https://cdn.sqhk.co/miweguzeg/Figiege/fortnite_skin_coloring_pictures.pdfIn PDF document text
    • https://dakubotamijez.weebly.com/uploads/1/3/2/7/132712147/8476315.pdfIn PDF document text
    • https://doretufokisa.weebly.com/uploads/1/3/1/4/131438244/5113399.pdfIn PDF document text
    • https://cdn.sqhk.co/mozejipakas/FhezDWv/80464682055.pdfIn PDF document text
    • http://banquepopulaire-fr.org/greenworks_1700_psi_pressure_washer_accessories8izb4.pdfIn PDF document text
    • https://cdn.sqhk.co/gotuxixovumu/ibfzghG/48911232961.pdfIn PDF document text
    • http://reduslimer.website/cuyahoga_falls_police_accident_reports1xvh8.pdfIn PDF document text
    • https://cdn.sqhk.co/sabepakofo/gbBMKZH/paylink_generator_for_paypal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sizabo/zimulevikodosukowefimed.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/employment_contract_uk_template.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_off0000dfcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCB 5416 bytes
SHA-256: e83465d9b7782b4a9d71bbab5de690abd771c922f31d8addf2fec0e2698981c3
font_01_sfnt_off0000f231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF231 10044 bytes
SHA-256: 677b756649867a6e09ca3cfa6488cedc16da189dc2d1cf5e4118674ff3d59d1b

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