Malicious PDF — malware analysis report

Static analysis result for SHA-256 056cb806d30ff50a…

MALICIOUS

PDF

83.6 KB Created: 2021-06-03 11:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: c444ca71d6747369d88e3a6f37cf2269 SHA-1: e8c2fa143c63aef37042c36ba288a9405be5d1fd SHA-256: 056cb806d30ff50a17c539107dbc62766f1c4c3eb95984f6653900c2c144273c
126 Risk Score

Malware Insights

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

This PDF was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests it functions as a link farm, directing users to potentially harmful external sites. The presence of an embedded URI pointing to 'ponafet.ru' further supports this, likely serving as a lure for phishing or malware distribution.

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://ponafet.ru/123?utm_term=emulator+pc+ringan PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403130/normal_6063943e9cd5b.pdfIn PDF document text
    • https://kumaneke.weebly.com/uploads/1/3/4/6/134682587/f0caf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_5fdb703768429.pdfIn PDF document text
    • https://ruzudewalaxuge.weebly.com/uploads/1/3/4/4/134497745/sufabud.pdfIn PDF document text
    • https://rofaxebawo.weebly.com/uploads/1/3/4/7/134750080/mugoxepi_wufagi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497110/normal_5fdf393496eca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501042/normal_60430911b2063.pdfIn PDF document text
    • https://kawuloxegulul.weebly.com/uploads/1/3/4/3/134389306/9035f9eaa9af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jujupaw.pbworks.com/w/file/fetch/144535077/how_to_spawn_a_reaper_leviathan_egg.pdfIn PDF document text
    • http://pokuwatosat.pbworks.com/w/file/fetch/144457584/how_to_calculate_voltage_drop_in_transformer.pdfIn PDF document text
    • http://xedidovetaw.pbworks.com/f/price_volume_mix_analysis_example.pdfIn PDF document text
    • http://viluxese.pbworks.com/f/disolucion_diluida_concentrada_y_saturada.pdfIn PDF document text
    • http://zepadatoju.pbworks.com/w/file/fetch/144416484/13173010163.pdfIn PDF document text
    • http://negovijalulu.pbworks.com/w/file/fetch/144412662/54241097393.pdfIn PDF document text
    • http://gitixofipoxu.pbworks.com/f/moonu_tamil_movie_video_songs_download.pdfIn PDF document text
    • http://fodorafirig.pbworks.com/f/23940350012.pdfIn PDF document text
    • http://mizelabe.pbworks.com/f/local_studies_about_factors_affecting_academic_performance_in_the_philippines.pdfIn PDF document text
    • http://gamaxidad.pbworks.com/w/file/fetch/144539442/participe_prsent_adjectif_verbal_exercices.pdfIn PDF document text
    • http://xetuduju.pbworks.com/w/file/fetch/144554883/ilyas_ansari_community_medicine_free_download.pdfIn PDF document text
    • http://gafuxexosaru.pbworks.com/f/pokemon_sun_and_moon_rom_free_download_for_android.pdfIn PDF document text
    • http://fadoposapat.pbworks.com/f/lozunuxekosi.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_off00010d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D8B 5032 bytes
SHA-256: 42d87c79b84012411dd77b880a1585e7f4ac8cbe186154641920a07dd0b15b3b
font_01_sfnt_off00011e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E90 10364 bytes
SHA-256: 69ddcc7316026f4832d3a4248182c13629406ea4dc6c49d709ae9b6435af1978

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