Malicious PDF — malware analysis report

Static analysis result for SHA-256 4777c147633e89a6…

MALICIOUS

PDF

72.9 KB Created: 2021-02-25 02:29:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 151cbd8d079921ea464899eb3c93c61f SHA-1: e0b7ae2d43900658cb9c90f5351cf999c8fb0d70 SHA-256: 4777c147633e89a6838d5b3bbdb6d350b0708d0216ddafcd042dfe67ea70abfe
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=does+costco+have+a+blood+pressure+machine In PDF document text
    • http://jekefidaz.mygamesonline.org/23914839220.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484609/normal_5ff407649befa.pdfIn PDF document text
    • http://sewowenokep.iblogger.org/50457520925.pdfIn PDF document text
    • https://gavuwili.weebly.com/uploads/1/3/1/0/131070236/luwetemotezo.pdfIn PDF document text
    • https://zinubokutedoses.weebly.com/uploads/1/3/5/9/135956806/wazevexamawimus_tebakove.pdfIn PDF document text
    • http://ladukusuga.22web.org/51324131099.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/dji1Zr1/jalamu.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/aHhih3u/tozoturazo.pdfIn PDF document text
    • https://kaxapajitab.weebly.com/uploads/1/3/4/8/134896246/57972b36b3c46.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/vosaro.pdfIn PDF document text
    • https://dinowupeguf.weebly.com/uploads/1/3/1/3/131379410/4742223.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/holmes_and_rahe_stress_scale_calculator.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/vovopafubipu/ohio_lump_sum_distribution_credit_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/pexejowa.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/51994468469.pdfIn PDF document text
    • http://nuwumunis.epizy.com/vlookup_between_sheets.pdfIn PDF document text
    • http://totiwofosu.epizy.com/auto_root_tool_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/bakulomifuvimis.pdfIn PDF document text
    • http://lafanibawonol.rf.gd/3-_4_equations_of_lines_practice_answers.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/harlan_ellison_terminator_outer_limits.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_off0000dfb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB7 5512 bytes
SHA-256: acbcc538451b17d0385e82fc817b8e13855e441b7e5c53b8c295b784b9b04117
font_01_sfnt_off0000f251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF251 10500 bytes
SHA-256: d5f2a16e2815e7e19f5c9ffcbad6d7053cd00d96bb5ee73c8454c718667d0c2e

Open this report in the interactive analyzer, or submit your own file for analysis.