Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb78054c28542ce…

MALICIOUS

PDF

65.8 KB Created: 2021-03-01 00:59:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e3108ed04df96f007c5d80118662b580 SHA-1: d133de45ff0d0234a9a2a2d4e018351825977b64 SHA-256: eeb78054c28542cef1c20826006d40c710a05f277450e903b9ed6a6afef57a9f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://botokaw.ru/award?keyword=landice+l7+treadmill+owner%2527s+manual PDF link annotation
    • https://cdn.sqhk.co/kiribikiv/ghihxij/valspar_house_paint_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/tatudawo/zjd0Tam/40857780275.pdfIn PDF document text
    • http://kekebum.22web.org/theological_dictionary_of_the_new_testament_volume_2.pdfIn PDF document text
    • https://rerararomimin.weebly.com/uploads/1/3/1/3/131383042/8775794.pdfIn PDF document text
    • https://cdn.sqhk.co/zixedagiro/5hfhPge/ahl_hockey_scores_last_night.pdfIn PDF document text
    • http://favuloxodi.iblogger.org/36684366622.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/fMbpBWF/sesipu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://besuwodusibix.rf.gd/calibre_android_sync.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/ginizekopiwa.pdfIn PDF document text
    • http://budekibume.epizy.com/launchpad_pro_programmers_guide.pdfIn PDF document text
    • http://vokunewegulu.epizy.com/39220428499.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/oligomenorrhea_treatment_guidelines.pdfIn PDF document text
    • http://buxidogekalor.rf.gd/influencia_de_los_medios_de_comunicacion_en_la_conducta_humana.pdfIn PDF document text
    • http://moxododokojuke.epizy.com/mufojojomipivazox.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/how_will_the_new_moon_affect_libra.pdfIn PDF document text
    • http://luvibiw.epizy.com/flight_simulator_advanced_apk.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_off0000c95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95E 5232 bytes
SHA-256: d876ccd947bcac264a449e78ded6f49b95408848ec30e2f0409d91f36f60a41a
font_01_sfnt_off0000db33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB33 9092 bytes
SHA-256: f5a62e60d0e0a39f6dd7cb9beabac497c9319526e6677b6fa6fa292724b5799a