Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c34821f04de161…

MALICIOUS

PDF

74.8 KB Created: 2021-03-03 05:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ddd20cc585deaf355a7adef02ac2a1f3 SHA-1: 751f5e9310bfa1c0d664913debf1175dcebf03fb SHA-256: 36c34821f04de161b5addd8c617a4b54d6c3f9e469d8d70f67906fff46b16650
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://gimoguvi.ru/award?keyword=description+of+rainstorm PDF link annotation
    • https://cdn.sqhk.co/girolivudafo/MicVift/14718594044.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/hhghrSl/16535479681.pdfIn PDF document text
    • https://cdn.sqhk.co/difejekexe/Ui9MChh/business_plan_ppt_template_2020.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/john_deere_185_hydro_starter_relay.pdfIn PDF document text
    • https://cdn.sqhk.co/xetasenuwoji/8Xgcihn/godville_commands_pet.pdfIn PDF document text
    • https://cdn.sqhk.co/zedazisem/p5giNlC/rofuvajaf.pdfIn PDF document text
    • https://cdn.sqhk.co/jenireni/Pjj0heD/64516483760.pdfIn PDF document text
    • http://tanijijud.sportsontheweb.net/side_effects_thyroid_hormone_replacement.pdfIn PDF document text
    • http://fibutogu.mywebcommunity.org/manosemixujudezadagutu.pdfIn PDF document text
    • https://cdn.sqhk.co/kifavubivelo/Bsgc4hj/zixoxomo.pdfIn PDF document text
    • https://vepenisa.weebly.com/uploads/1/3/4/3/134339982/jalivuvuzup.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/tuxutedi/tourismusinformation_berchtesgadener_land.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/426229176.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/biriyani_tamil_movie_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/history_of_the_world_i_guess_original.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/21314543231.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/rinijemifonu.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/ragozubukujamikelosaxa.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_off0000e534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE534 5128 bytes
SHA-256: 19126b24ce5f36d4d602e304072a5d323406e078a17f8f98efd2c0849bd30b1b
font_01_sfnt_off0000f69a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69A 11260 bytes
SHA-256: bbb3462102120990489e4d44cf93e9299839967a4b40be5c18fab8144307172a