Malicious PDF — malware analysis report

Static analysis result for SHA-256 395087846f831d7f…

MALICIOUS

PDF

69.3 KB Created: 2021-03-03 00:14:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7dfbec48cd3607e1d3014c8fe5847419 SHA-1: d154f3e5f997d27949a337074d7a4dba2ac007b7 SHA-256: 395087846f831d7f5302fe1027dd1cd79b47c39a600eaa9a867fe2832f9c5c09
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=biology+types+of+natural+selection+worksheet PDF link annotation
    • http://nuwenipo.22web.org/49240308300.pdfIn PDF document text
    • http://koprovk.xyz/disujobimebofogumawh2nt8.pdfIn PDF document text
    • http://bezprovodov.guru/37862976689dc5fe.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/starting_out_with_java_from_control_structures_through_data_structures_4_e.pdfIn PDF document text
    • http://disclosures.space/omsi_2_bus_simulator_free_download_for_pc5zewa.pdfIn PDF document text
    • http://geniputan.66ghz.com/lizufutemopepi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446275/normal_5fdb1f377fa51.pdfIn PDF document text
    • http://pugisapi.mypressonline.com/who_is_mandalorians_father.pdfIn PDF document text
    • http://rikedodiveli.22web.org/27537929974.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/the_wave_2015_movie_watch_online_free.pdfIn PDF document text
    • http://expo-kit.ru/act_up_clean_versionsk6qh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tukurazetuxud.epizy.com/voyager_picture_from_edge_of_solar_system.pdfIn PDF document text
    • http://tifavamifikas.myartsonline.com/how_do_i_use_call_waiting_on_my_panasonic_cordless_phone.pdfIn PDF document text
    • http://sikapatosibo.rf.gd/software_conceptual_design_template.pdfIn PDF document text
    • http://fepetixapokurob.myartsonline.com/mumumam.pdfIn PDF document text
    • http://vedisupekak.epizy.com/google_chrome_for_android_box.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C9 5464 bytes
SHA-256: 7877bc9d5262ed48029551a93f0c58e0ed150ba0d02975d270a9265d1fbb7e93
font_01_sfnt_off0000d872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD872 9704 bytes
SHA-256: bf61f351b7e91d4701dac4586f1da3dd210c9e33b9e741b25abb31f5ebd9172b
font_02_sfnt_off0000f9b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B7 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230