Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa317b27faf2c9a…

MALICIOUS

PDF

80.7 KB Created: 2021-03-22 18:58:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: daecce8fc3807d94f4354ad52654059f SHA-1: a4acf61449f6c5dbde1169924e790795f53ffeec SHA-256: 2aa317b27faf2c9a6a96c115fd0f4f5971c89bf4a51e6dfced8a1b6f1ce81a7a
126 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. It contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users. The document body, though heavily obfuscated, contains text related to search queries, suggesting a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://jottigo.ru/strik?utm_term=julius+caesar+act+3+scene+2+questions+and+answers PDF link annotation
    • http://siviveko.getenjoyment.net/average_salary_for_entry_level_business_analyst.pdfIn PDF document text
    • https://cdn.sqhk.co/renosopezare/ibJOyyG/sierra_leone_civil_war_conflict_diamonds.pdfIn PDF document text
    • http://zutatowatipo.mywebcommunity.org/jigezival.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/kezaxafi.pdfIn PDF document text
    • http://aduo5.online/86700881258l1pd8.pdfIn PDF document text
    • http://sandwichhq.club/9545663801wp6i3.pdfIn PDF document text
    • http://lightly.store/nomuxebatewkfqq.pdfIn PDF document text
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/5898150.pdfIn PDF document text
    • http://lakegefufen.scienceontheweb.net/warm_bodies_film_completo_streaming_ita.pdfIn PDF document text
    • http://tujubafi.getenjoyment.net/corsarios_alemanes_en_la_segunda_guerra_mundial.pdfIn PDF document text
    • https://cdn.sqhk.co/lodesejidi/nibgeij/walmart_moneygram_online_not_working.pdfIn PDF document text
    • http://gekenig.mywebcommunity.org/stand_to_military_term.pdfIn PDF document text
    • http://penafur.scienceontheweb.net/interview_questions_and_answers_for_relationship_manager_in_bank.pdfIn PDF document text
    • http://hamlikjorettoop.ru/pathfinder_cleric_channel_energyxiein.pdfIn PDF document text
    • https://zajodufukotu.weebly.com/uploads/1/3/1/8/131857357/pirafofalurekekos.pdfIn PDF document text
    • https://wojedebaroz.weebly.com/uploads/1/3/1/6/131637691/96688be6ffb.pdfIn PDF document text
    • https://lusenivusimutom.weebly.com/uploads/1/3/4/8/134887898/vabefap_refanunamixol_sataxajajiriz.pdfIn PDF document text
    • https://nugobobunebiset.weebly.com/uploads/1/3/5/3/135303429/5573242.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/gdsBgj9/the_impossible_game_free_download_ios.pdfIn PDF document text
    • http://hydraruzxpnew4af.exchange/new_york_times_crossword_puzzles_answersei7b9.pdfIn PDF document text
    • http://gajonedorebuko.mywebcommunity.org/barkley_fnp_review_book.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2a49c79-64aa-41ff-852e-bbe38d0b8ca0/the_survival_medicine_handbook_2016_third_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/672a5db7-85f9-459f-a07c-fc303aa43987/jekomoxezijogewetidajusa.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_off0000fdb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB3 5436 bytes
SHA-256: 8446938f7a038063489c1146611b35226cb0df8a7313d270eb730f31709525a7
font_01_sfnt_off0001104a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1104A 10764 bytes
SHA-256: 7ec377545d3b122ff1e8f06141aa2270911cfbd1c10589840993049e056ea7d1

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