Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c35255cc919af55…

MALICIOUS

PDF

83.2 KB Created: 2021-03-24 09:30:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: bb37cc37706a0220f0ed80908f696cd7 SHA-1: 290c82ce1f87f6942b21a618fc4ed06d6c2d5000 SHA-256: 9c35255cc919af558cbf109d70adf7ad0b9901ff95f268b0ffe66b35bcf5ed54
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://mezovuduw.ru/strik?utm_term=is+silence+of+the+lambs+appropriate+for+a+14+year+old PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379855/normal_6047595a4cac9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446264/normal_601608aa4da3a.pdfIn PDF document text
    • http://gabibaz.22web.org/letter_from_birmingham_jail_quiz.pdfIn PDF document text
    • http://xenalisaseve.22web.org/12765311064.pdfIn PDF document text
    • http://gazeloguxa.22web.org/8038052334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402740/normal_601904d84fbf9.pdfIn PDF document text
    • http://getarileduvuda.22web.org/xemigu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385021/normal_601ec0b387744.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454809/normal_5ff9ddfd54896.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://serozefa.epizy.com/solaxabelezemi.pdfIn PDF document text
    • http://zebinopo.epizy.com/dugogavubimoxavawiwukeda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea3586cf-dc07-4178-9589-72c7afa162c8/faulkner_ciocca_bid_sale.pdfIn PDF document text
    • http://jazupizewatabal.epizy.com/soguwupedoliwufifufexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ceb4673-fdb1-4c2b-8e21-909b69751a78/elite_23l_digital_air_fryer_oven_black.pdfIn PDF document text
    • http://rejinivak.rf.gd/87622551655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/099e7229-e4ab-44ac-80f6-9ec16d9ec4a5/dumepifabofofubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02aa8045-35d6-4ee4-8bb5-d198a7a05815/how_to_update_iphone_4s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29be211d-8a4e-4489-a74b-a8d64865cad0/least_calorie_meal_at_taco_bell.pdfIn PDF document text
    • http://vufobaratoja.epizy.com/19020661600.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57f568eb-2b7c-4b05-a1bf-7e53713f2d0f/how_do_you_fix_a_honda_lawn_mower_that_wont_start.pdfIn PDF document text
    • http://jatamez.epizy.com/pilgrims_progress_movie_free_online.pdfIn PDF document text
    • http://todugiremo.epizy.com/sprint_ringback_tones_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec4024a-3961-4da9-8b61-f983d88ad51a/43191478118.pdfIn PDF document text
    • http://filivuso.rf.gd/motesupubafulagorof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0b14e21-3698-458d-982b-330c9ead54de/where_is_the_learn_button_on_a_sears_craftsman_garage_door_opener.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ebe89b3-9a50-4f63-8d1e-593c79334316/recall_krups_beertender-b100.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_off0001034e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1034E 5716 bytes
SHA-256: 6627dc1a1c3cb2314d4340534373b27b771aa6829ba2133f7bf51c1fff9b1dc6
font_01_sfnt_off000116a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116A2 11876 bytes
SHA-256: f98f8074dd30a713b4ee136a8e9942a3d210751548222d0f1a5e5f0648c9b6d0