Malicious PDF — malware analysis report

Static analysis result for SHA-256 3848344bc3b32d2c…

MALICIOUS

PDF

72.8 KB Created: 2021-01-21 00:13:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: aea842ba60781eb70754f25ce027608c SHA-1: ec5f088b33585a06e874609571f5f912aae76982 SHA-256: 3848344bc3b32d2cf0786718d51671b0bdac7e307039363186a8c7172f4e8f5d
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://yafferge.ru/wb?keyword=lowe In PDF document text
    • https://site-1180889.mozfiles.com/files/1180889/discrete_dynamical_systems_theory_and_applications.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/jdhazhc/mimpi_lirik_lagu_anggun.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/xoferuzu/47591939889.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/katevagetavesogeg.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/atomisme_logique.pdfIn PDF document text
    • http://jupuzagap.rf.gd/arduino_programming_software_free.pdfIn PDF document text
    • http://towupew.epizy.com/nubax.pdfIn PDF document text
    • http://waxaravibew.epizy.com/brothers_of_peace_albums.pdfIn PDF document text
    • http://mogadaf.epizy.com/lake_louise_yuhki_kuramoto_piano_sheet_music.pdfIn PDF document text
    • http://bibobega.epizy.com/bootstrap_4_templates_for_website.pdfIn PDF document text
    • http://lizolubemerawi.epizy.com/zatumakosuderekibefat.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/ganeji.pdfIn PDF document text
    • http://fokogemuzaraw.epizy.com/16067844887.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/80326934363.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/8284940309.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_off0000e095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE095 5140 bytes
SHA-256: 741cc9cfcc97037b6963f20c6f97e596e2a6bb1eaa7ae6c54acbcb5dcb040b97
font_01_sfnt_off0000f217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF217 10616 bytes
SHA-256: a3d498d840d0e3d5ed658a5764dfe37052d7b5b0c56dacba1735d8584daea67c