Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be1fedced2dda1f…

MALICIOUS

PDF

74.6 KB Created: 2021-01-23 18:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e963b4342fbedd71387ab0fbb7e77577 SHA-1: 326feadfc5d6429d14691b9bc20b7b8453959b32 SHA-256: 5be1fedced2dda1f459fc367476526efd4a06c2184063e9d2db8344193848d3a
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/123?utm_term=invadindo+sites+por+ftp+portugal In PDF document text
    • https://site-1167954.mozfiles.com/files/1167954/canada_simulator_2_close_to_call.pdfIn PDF document text
    • http://lanufutado.22web.org/xudibajolexima.pdfIn PDF document text
    • https://site-1172440.mozfiles.com/files/1172440/wokeg.pdfIn PDF document text
    • https://site-1168148.mozfiles.com/files/1168148/archery_master_3d_game_unlimited_coins.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/0D1V1nb/82678028607.pdfIn PDF document text
    • http://pilefubasusuz.iblogger.org/hypoallergenic_bed_sheets_target.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zikinevubebera.epizy.com/47164732000.pdfIn PDF document text
    • http://foweroboxufafuv.epizy.com/76633910539.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/62992111612.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/dnr_fishing_report_muskegon.pdfIn PDF document text
    • http://toxawilel.epizy.com/99014931780.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/75867471727.pdfIn PDF document text
    • http://wijegasijewen.rf.gd/77715556710.pdfIn PDF document text
    • http://jasukapikubov.rf.gd/pepulesu.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/3207176466.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_off0000e33e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33E 5204 bytes
SHA-256: 0df33073ae2569b0b2a00592cc8e157f52cde401c0a72815a511755ca23d5f05
font_01_sfnt_off0000f50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF50B 12368 bytes
SHA-256: 406b3eef699caa9ef7f9eff2f86743bd8da37351fbe8e7aa5f2904c41eb299b9