Malicious PDF — malware analysis report

Static analysis result for SHA-256 2927a585f000b01f…

MALICIOUS

PDF

68.2 KB Created: 2021-02-22 09:16:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 698f98fa60937dfb38250f7727e3d08b SHA-1: 4e650475bda8a099d62d1dbe667dd3d962f4b878 SHA-256: 2927a585f000b01f405fca30bd0b0183eebfe5a0882701c34a065a4bd74fd3cf
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified by heuristics as a potential phishing or malware distribution lure. ClamAV detection and ML classification strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/123?utm_term=research+methods+in+psychology+morling PDF link annotation
    • https://cdn.sqhk.co/gadewekunel/ShaFJhe/24292096744.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501383/normal_6023076d55b55.pdfIn PDF document text
    • https://cdn.sqhk.co/fasisela/rjbhb4q/59109295361.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzowadijavu/iOjjOOL/fire_and_ice_wolf_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/IhiXjic/73963984323.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/lUHhehg/cartoon_network_arabic_live_app.pdfIn PDF document text
    • https://cdn.sqhk.co/rorezina/jkgGjhp/live_minecraft_wallpaper_apk.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/rujimidujek/rerezowumozal.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/71558710002.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/texas_school_lunch_menu_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/58598723795.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/apexification_with_mta_case_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/beautiful_things_gungor.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/android_os_software_free_for_tablet.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_off0000cad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD1 5596 bytes
SHA-256: e58f561dde92581d1d76ff8b3762328e55c5034a49b22e452d7f53f24ea49089
font_01_sfnt_off0000ddbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBC 11236 bytes
SHA-256: dda7d4a62a764ebdd2cc3c479c795217c5e7f65bd3eedf4336e429f576b04da3

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