Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e215e084f56fcc…

MALICIOUS

PDF

70.5 KB Created: 2021-02-11 23:32:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0cf4ee189c0590f8c420fb8f48a38116 SHA-1: c3cf91fa943238adc0f3c70240e6f967800984b7 SHA-256: 36e215e084f56fcc5e2f8293de9cc49244fa7f4441ee07b96ddee6e44122fc10
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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/wb?keyword=eugenia%20brasiliensis%20pdf PDF link annotation
    • https://mizunemaki.weebly.com/uploads/1/3/4/8/134850414/lidesemolif.pdfIn PDF document text
    • https://cdn.sqhk.co/ledazukogim/gejagfc/video_download_for_tik_tok_no_watermark_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/vifutetax/TUVjjN0/ice_machine_for_sale_hawaii.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451752/normal_6005af5fba605.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411252/normal_5fdf88c2d0a43.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/ewjeeij/tie_dye_sweatpants_set_amazon.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/jamuluvuvava/ausforming_vs_austempering.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/13584960178.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/ashes_cricket_2009_game_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/cidco_lottery_online_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/cultura_regional_libro.pdfIn PDF document text
    • http://xogowakowokavuw.rf.gd/rumunaf.pdfIn PDF document text
    • http://lezabiwobefek.rf.gd/videoder_android_apps_free.pdfIn PDF document text
    • http://pupovedifa.rf.gd/autocad_2015_crack_only_64_bit.pdfIn PDF document text
    • http://tefabonapo.rf.gd/45425118681.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_off0000d3f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F8 5304 bytes
SHA-256: 2fa0f6e76b3c126138c5e64d04ea8e533fe6a1bb588cb1eb91f96b3a771b72ee
font_01_sfnt_off0000e60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60F 12220 bytes
SHA-256: 42861e534490392821d27dd79e819789b6ee2ecd261294dde7810db464fb0fc7