Malicious PDF — malware analysis report

Static analysis result for SHA-256 0563e66adee1ed45…

MALICIOUS

PDF

77.0 KB Created: 2021-02-27 15:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3f0b1c073736b9035d3c749bc18b92ff SHA-1: df8d723f0b9b96fff0cd3cdb0c8d936e997fce89 SHA-256: 0563e66adee1ed45a63143d449202b93e516f3c0f1ee9cc2158ee36d7dd152c2
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/wb?keyword=how%20to%20pair%20ihome%20bluetooth%20speaker PDF link annotation
    • https://numetoximo.weebly.com/uploads/1/3/4/7/134717633/jotizanutagesub.pdfIn PDF document text
    • http://tehnotop.store/body_for_life_book_kindlep5fv9.pdfIn PDF document text
    • http://allieshouseofhope.com/97726524402mrcdz.pdfIn PDF document text
    • http://barbanapoli.moscow/practice_10-2_areas_of_trapezoids_rhombuses_and_kites_answerswklsd.pdfIn PDF document text
    • https://kapegidaboxisi.weebly.com/uploads/1/3/4/5/134527108/567813.pdfIn PDF document text
    • https://rusudunan.weebly.com/uploads/1/3/2/6/132681855/donixo_buporilobesuf_litasolela.pdfIn PDF document text
    • http://nubolutlion.xyz/simple_task_list_managerv6pxd.pdfIn PDF document text
    • http://lg-copyrightforms.com/kosedatnuyf0.pdfIn PDF document text
    • http://sijubuwejipamun.mywebcommunity.org/does_roku_tv_support_airplay.pdfIn PDF document text
    • http://indital.fun/simple_biodata_format_doc_free1scxz.pdfIn PDF document text
    • https://lilufegat.weebly.com/uploads/1/3/5/9/135965666/09729e.pdfIn PDF document text
    • http://snatural.space/43710177883by5ty.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/mokamoba/marquis_de_sade_juliette_review.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/macbeth_act_3_scene_4_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/26345015943.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/catalytic_hydrogenation_in_organic_syntheses.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/livebavusafejarelelebopo.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/zirenebobulavogolazo.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_off0000f165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF165 5316 bytes
SHA-256: c3e737e6fbc26b9b6be7c513ab3d466fa24485eeeffedbdbc03b13d48f1957c2
font_01_sfnt_off00010355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10355 10416 bytes
SHA-256: a311fe3b5543d869b36b1fa2086d0c7c910ab71b698a340fbb6c2b5347220b5d