Malicious PDF — malware analysis report

Static analysis result for SHA-256 1604bd69aca73ab6…

MALICIOUS

PDF

73.1 KB Created: 2021-02-13 17:23:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7cca843aaef01854f687b2e82a5c627c SHA-1: d8c7d4049b78e2d22163690e12ad51ea58eebc18 SHA-256: 1604bd69aca73ab6f9495b13149e9c9fdcdc9851f38a645ebf4a466e243bcc34
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://bologen.ru/wix?keyword=wall+mounted+baby+changing+table PDF link annotation
    • https://cdn.sqhk.co/kawinojos/bhipgjW/tadafibunutagubime.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420752/normal_5fce4c98323db.pdfIn PDF document text
    • https://cdn.sqhk.co/xumelesep/ijpEgfE/download_game_bubble_bird_rescue_2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374840/normal_6013f4b27c69e.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/ijiefG2/hangman_s_fracture_c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447447/normal_5fd1e71367087.pdfIn PDF document text
    • https://cdn.sqhk.co/fisoxinizo/SKgfUbL/paradise_island_show_2020.pdfIn PDF document text
    • http://titodisoke.22web.org/luxembourg_city_tourist_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/jesarijufe/BDKjeje/primalert_10_monitor.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/get_your_guide_iceland_tripadvisor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://funazowo.rf.gd/jabisosi.pdfIn PDF document text
    • http://telebil.rf.gd/nodivogiwif.pdfIn PDF document text
    • http://tojizuwit.epizy.com/tifavebepamidetupej.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/direct_object_pronoun_practice_spanish_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/1990670344.pdfIn PDF document text
    • http://sonisan.epizy.com/angry_bird_tamil_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/casper_test_good_answers.pdfIn PDF document text
    • http://fazomexaboru.rf.gd/fegumatumivigakebuvamezi.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/mifigibogetubagubufu.pdfIn PDF document text
    • http://rawuzogese.rf.gd/whatsapp_gb_8._00_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_off0000e016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE016 5332 bytes
SHA-256: 2354f24a484c38accf6a972cc038189e0b256f3887bb5bfc3effbef06bf662eb
font_01_sfnt_off0000f22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22A 10756 bytes
SHA-256: 1cd805bc195f22f7b677b30d8148706446f7e00d6baaaddc83fcc2d8fd7152bf