Malicious PDF — malware analysis report

Static analysis result for SHA-256 a88eda0bc93dae21…

MALICIOUS

PDF

65.3 KB Created: 2021-02-21 16:43:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2d46c4607b3d79ff06e13ab085afc6cb SHA-1: 35bdba839a8a3697f73700a43391695053b4cc2b SHA-256: a88eda0bc93dae2121bb56c488a889e1e23d95ce717c9df4282fd49a0164620c
184 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
  • 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.
  • 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.
  • 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/wix?keyword=repost+for+instagram+apk+uptodown In PDF document text
    • https://static.s123-cdn-static.com/uploads/4386081/normal_5fcd45eeba16d.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/1rPk8xC/jewel_legend_match_3_puzzle_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/jdLShgF/86562959471.pdfIn PDF document text
    • http://nokirixako.iblogger.org/travel_guides_commentator.pdfIn PDF document text
    • http://lefegesitorezod.iblogger.org/code_name_verity_audiobook_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wezufunin/ibnmiUs/how_to_use_hyperspace_navigation_station_nms.pdfIn PDF document text
    • http://bomezifubaf.iblogger.org/adobe_photoshop_cs2_full.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391621/normal_5ff303656bc90.pdfIn PDF document text
    • https://cdn.sqhk.co/mitukutowum/EgfU5QP/seferesujuxofivisuniwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467979/normal_5fe2a9c592128.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421468/normal_5fe1751f4c7eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_601cb1a671a7c.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/savukojubusum/81283973903.pdfIn PDF document text
    • http://vopepeto.epizy.com/france_road_map.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/32716568932.pdfIn PDF document text
    • http://nerusejide.rf.gd/2006_ford_ranger_repair_manual_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/brand_guide_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/32180046103.pdfIn PDF document text
    • http://sirovorisolilu.rf.gd/what_do_you_mean_by_security_analysis_and_portfolio_management.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_off0000c412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC412 5492 bytes
SHA-256: 43c091a6b9dc7349331944a7412986954e8f6ff0e677652f49f6439656d7aa5f
font_01_sfnt_off0000d6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C3 9780 bytes
SHA-256: 64aa8feab72c686fae1f827110dd1f697f86dc63fa56adfd025607233cbfe926

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