Malicious PDF — malware analysis report

Static analysis result for SHA-256 225c1d0158394c07…

MALICIOUS

PDF

76.7 KB Created: 2021-03-20 23:30:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccb595d8f70734ba5a96e58733a21ff9 SHA-1: 3242d9be8315850b654b4d34863d5f6851c2fbd0 SHA-256: 225c1d0158394c074ace95c79342c0bb2976a01441e5b95d015ab3b32540c4aa
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an external URI pointing to 'https://soxebez.ru/123?utm_term=grade+5+math+practice+book+pdf', suggesting a phishing or malware distribution attempt disguised as educational material. No scripts were extracted, but the presence of embedded URLs and the overall detection indicate a malicious intent to redirect the user to a harmful resource.

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
  • 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://soxebez.ru/123?utm_term=grade+5+math+practice+book+pdf
    • http://xazupadapafow.mypressonline.com/java_swing_documentation.pdf
    • https://cdn.sqhk.co/balaragu/HL9oShb/mixikefudomewofuted.pdf
    • http://antonioit.fun/js_absolute_path_to_relativemudhe.pdf
    • https://cdn.sqhk.co/gadowikuxe/fiegcHw/besux.pdf
    • http://dakisemakegag.sportsontheweb.net/57940679580.pdf
    • https://cdn.sqhk.co/moserusoba/haLgfgc/dukufulebuxuwukakoziga.pdf
    • http://pimesizawox.sportsontheweb.net/honda_9.9_outboard_repair_manual.pdf
    • http://xabudumame.mypressonline.com/zafezazodazagibageg.pdf
    • http://pokupka.space/57629350790h6j9v.pdf
    • http://copyright-helps-team.com/shadow_and_bone_book_1_summary04v4s.pdf
    • http://ccckkkkk.space/13597463984pp0gc.pdf
    • http://zamowafa.mywebcommunity.org/peter_drucker_books.pdf
    • http://beautysale.site/883351778335sdnq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jesotumab.rf.gd/paper_chromatography_notes.pdf
    • https://uploads.strikinglycdn.com/files/55d250cc-4218-48d1-819f-0357b929b923/70249120121.pdf
    • https://uploads.strikinglycdn.com/files/aa4560aa-0fcd-46da-bf5d-a68fd9f9ef1c/8434407576.pdf
    • https://uploads.strikinglycdn.com/files/0498c911-36c7-4b5e-b7a7-55f30989573f/77929369187.pdf
    • https://uploads.strikinglycdn.com/files/3c09505b-aedf-4c55-82f4-4b5316186d89/why_did_tom_sawyer_island_disney_world_closed.pdf
    • https://uploads.strikinglycdn.com/files/3ddda230-f85b-4fd0-97aa-1136505f3954/56093643687.pdf
    • http://mugazukadum.onlinewebshop.net/1280548603.pdf
    • http://degefoxovovi.epizy.com/25419172391.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee5e.bin
3c1ceb025a661226b60648def01ab4a2c4a0abed720d163b62a8304525a785f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5E 5544 bytes
font_01_sfnt_off00010114.bin
728711e4e6d4edd1c9ea132538656da931aab70b83a9c947152da082c72a16d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x10114 10680 bytes