Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db295c3c9fa7ee1…

MALICIOUS

PDF

72.8 KB Created: 2021-02-27 18:51:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b6da981b5754f8ae4da67c6af5153f4a SHA-1: 28f4eb32d628f51034ef5774b91d4bc566fd8cbd SHA-256: 0db295c3c9fa7ee1007e8cc3cf363a5f68b4eb64446dbdded413891a5bdec76b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://druttle.ru/wix?keyword=coordinate+covalent+bond+khan+academy PDF link annotation
    • https://cdn.sqhk.co/mekaxosur/iTihjU5/lekesoninetululawomixo.pdfIn PDF document text
    • https://cdn.sqhk.co/fegukajebaj/XggaiF8/parkour_race_free_run_game_mod.pdfIn PDF document text
    • http://datulosuwila.iblogger.org/mimomazineki.pdfIn PDF document text
    • https://cdn.sqhk.co/jarebomu/hdufAja/watch_1045_espn.pdfIn PDF document text
    • https://cdn.sqhk.co/pabopimi/qOghgdH/72787821993.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/pujerukekexadetewelelez.pdfIn PDF document text
    • http://wumewil.sportsontheweb.net/gukivexa.pdfIn PDF document text
    • https://cdn.sqhk.co/purorenutuw/ez8QAje/amazon_prime_cyber_monday_movies.pdfIn PDF document text
    • http://nalilix.iblogger.org/bioplastics_research_paper.pdfIn PDF document text
    • https://cdn.sqhk.co/sovajepuxe/gihjUtu/79421740530.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mowesedapi.epizy.com/3ds_emulator_for_pc_with_bios.pdfIn PDF document text
    • http://govefos.epizy.com/89304615606.pdfIn PDF document text
    • http://vubenotabajumem.epizy.com/how_much_for_a_welding_course.pdfIn PDF document text
    • http://bimitev.epizy.com/fawowirinupewodugeli.pdfIn PDF document text
    • http://rokidibamufoduv.epizy.com/78584607053.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_off0000e182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE182 5272 bytes
SHA-256: a83e3681b346459c0abbf37dc1909fc0095bc43fc5e796b822261d141344bb52
font_01_sfnt_off0000f349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF349 10220 bytes
SHA-256: 6b6bebe0ec4c488c218a9a776df32f83fea01c8e2b684590f00d38fb7b266b3d