Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2186f3989222eb5…

MALICIOUS

PDF

70.8 KB Created: 2021-02-20 08:09:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 17c2974fbcb8fbb37d0332e46357fc34 SHA-1: b781a811f9fd07f4e4742ed0ed01790675726821 SHA-256: e2186f3989222eb5326aa55d3d8b0304833317723e53a84a46af7e42335b43b4
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=what+are+the+4+steps+in+the+closing+process In PDF document text
    • https://cdn.sqhk.co/woselukafo/dgeYfyI/kleptocats_2_game.pdfIn PDF document text
    • http://wow50.pro/free_bitlocker_for_window_7npr1q.pdfIn PDF document text
    • https://cdn.sqhk.co/dusaradezat/egdY5hd/can_knockdown_game_diy.pdfIn PDF document text
    • http://egrn-order.online/planet_earth_streamingc7xoy.pdfIn PDF document text
    • http://rentline.pro/2019_hollywood_action_moviescndyw.pdfIn PDF document text
    • https://cdn.sqhk.co/wazotifuk/fFhbAig/solitaire_spider_rules.pdfIn PDF document text
    • http://cccckkkkkdd.space/pufejezumg45r2.pdfIn PDF document text
    • http://burrrhey.tech/palabras_con_dla_dle_dli_dlo_dlur4gz3.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/wisuw/cartoon_house_3d_model_free.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/maplestory_m_vietnam_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/scroll_saw_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/grey_s_anatomy_episode_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/vofalemazadigariwikugowo.pdfIn PDF document text
    • http://xugonapo.rf.gd/35026725339.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/padazisulipogutizasol.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_off0000d868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD868 5296 bytes
SHA-256: 603fe82207f0f935ad1188cb0498e297f33c5f450183385d07b5c74efbb1fe05
font_01_sfnt_off0000ea7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 10468 bytes
SHA-256: a0eae9dd453a2eca751053d3689d833dd8c75621ac9c7062710aa63f63f76c34