Malicious PDF — malware analysis report

Static analysis result for SHA-256 61d3100144e1b6bb…

MALICIOUS

PDF

74.4 KB Created: 2021-02-26 09:04:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a09fe7a6fcbf881612dd650473e00cde SHA-1: 45f4ce6a47c64606268ac931eebeb2b9780ab261 SHA-256: 61d3100144e1b6bb480bb65d89638f17ccf9679ea937ecd71690b04aed2e060b
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://druttle.ru/wix?keyword=kansas+4-h+shooting+sports PDF link annotation
    • https://cdn.sqhk.co/kovezozeseg/9idTphd/4119962630.pdfIn PDF document text
    • https://guxuxexor.weebly.com/uploads/1/3/0/7/130775085/48860.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/mississippi_learners_permit_driving_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/iPVZTS4/sibizaxomitisowupototi.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/how_much_is_a_polaroid_sx_70_land_camera_worth.pdfIn PDF document text
    • http://wuxemit.iblogger.org/goalkeepers_with_most_clean_sheets_in_europe.pdfIn PDF document text
    • https://romuxejis.weebly.com/uploads/1/3/4/8/134887308/pefadomejopobekov.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/is_anker_a_good_brand_reddit.pdfIn PDF document text
    • https://latitatuforuza.weebly.com/uploads/1/3/1/3/131398212/9329196.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/87587261331.pdfIn PDF document text
    • https://cdn.sqhk.co/wetaxawirewu/XiVghgg/black_action_hero_actors.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jimeroxivekafos.epizy.com/free_bangla_books_format.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/amido_resistente.pdfIn PDF document text
    • http://tuganireriwem.rf.gd/xumuramirulabegutuv.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/alienasi_karl_marx.pdfIn PDF document text
    • http://dusalotiwuje.rf.gd/behavioral_genetics_robert_plomin.pdfIn PDF document text
    • http://nomufasawanokez.epizy.com/basic_wine_guide_poster.pdfIn PDF document text
    • http://sawenisijupum.epizy.com/17388916330.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_off0000e5ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CA 5140 bytes
SHA-256: 9c7b411371fffbc8c7dee1d39067c85851867f692df9553d59062d648231fe68
font_01_sfnt_off0000f756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF756 10936 bytes
SHA-256: 8d315bcf1d593cb683fce042d621b14f2f7cd12ad7b0ab215aa808bf96ab6312