Malicious PDF — malware analysis report

Static analysis result for SHA-256 4675ff41e060b5fe…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 01:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f826443c105d4de85009bd4549941617 SHA-1: cca07fa3acc2d1befcc32ed6da09536f88486e43 SHA-256: 4675ff41e060b5feb9d585a99ce4cfa619596de75519c0a769026330fc6b2509
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/award?keyword=ross+carbonite+solo+frame PDF link annotation
    • http://pevojatinolotej.22web.org/4_pics_1_word_finger_pointing_answer.pdfIn PDF document text
    • https://cdn.sqhk.co/zalivelo/ajiifgj/59412662738.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/hdYQ61W/weather_today_boston_lincolnshire.pdfIn PDF document text
    • https://cdn.sqhk.co/lilodipu/XWjgqgj/ac_odyssey_fate_of_atlantis_full_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/ih9ZH5p/best_digital_marketing_course_near_me.pdfIn PDF document text
    • http://lerevujoda.iblogger.org/6856628506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453537/normal_602e9debc76a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501495/normal_5fdae1cf9c103.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407810/normal_5ffcfa87168dc.pdfIn PDF document text
    • https://cdn.sqhk.co/buzunonoj/h0qiahf/61030135026.pdfIn PDF document text
    • https://cdn.sqhk.co/bogabixexuja/yQjajfl/89352669494.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421630/normal_5ff46c79aca5c.pdfIn PDF document text
    • http://vpntop.info/49623792633rwp16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_600ea2e61069f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wotonopeg.epizy.com/96986855256.pdfIn PDF document text
    • http://faxaxesaxejov.rf.gd/android_one_special_features.pdfIn PDF document text
    • http://vejajideb.epizy.com/how_to_use_gamepad_cemu.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_off0000d96b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96B 5176 bytes
SHA-256: 168caf43d19ae95d1e6722380b284d4162bbb56b8e415b4c08bc38299b8cadb4
font_01_sfnt_off0000eaf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF8 10664 bytes
SHA-256: 7ebb0b3ffc5f78e40d402fbaefdea4a2b782d048bdfe377fef5d629058209e31