Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9caf5b601c6dd0…

MALICIOUS

PDF

68.5 KB Created: 2021-03-08 19:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6220aa8690cd1a29ea3eb456b234e369 SHA-1: ab2a1b73e6ef81da7c6d93ae3fba6a6965663a8b SHA-256: 0f9caf5b601c6dd0c1dcabbf6bb4c2dc46670badb134b68ac2602fef75ddb6e9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=pete+the+cat+shoes+pdf PDF link annotation
    • https://cdn.sqhk.co/vimexuda/yQcigqx/sexodulifenakijapa.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/joxefik.pdfIn PDF document text
    • https://sidedelozamuk.weebly.com/uploads/1/3/1/4/131482822/e340cc3c0f69.pdfIn PDF document text
    • https://cdn.sqhk.co/guwaloxipete/jeRij0v/hangout_meaning_in_bengali.pdfIn PDF document text
    • http://private-channel.site/xozimatifekipojododitmv59w.pdfIn PDF document text
    • http://load-bcp.com/vavojesadawuxesogugusit78ag.pdfIn PDF document text
    • https://xidoxuzi.weebly.com/uploads/1/3/4/7/134707988/rirugizogufo_jasuna_parajepafosab.pdfIn PDF document text
    • http://christinaanddavid2019.com/best_action_hero_actorsfi54v.pdfIn PDF document text
    • https://cdn.sqhk.co/bafesugoguwi/hhegeo2/superhero_bike_stunt_racing_tracks_california.pdfIn PDF document text
    • http://weraka.online/60981096204aiv2h.pdfIn PDF document text
    • http://trokot-shopnew.online/bewurubugosuzimodegexo862tx.pdfIn PDF document text
    • https://belujewirozem.weebly.com/uploads/1/3/2/6/132681559/fazuduz.pdfIn PDF document text
    • https://cdn.sqhk.co/fetedudi/hishahh/texas_holdem_poker_chips_distribution.pdfIn PDF document text
    • https://cdn.sqhk.co/bumajanivosi/hbqidKw/play_and_earn_money_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sedefoken/Thc2wjb/lolujalupofomorerutatoviw.pdfIn PDF document text
    • https://cdn.sqhk.co/sejujona/jiaijy4/8025097230.pdfIn PDF document text
    • https://cdn.sqhk.co/lirebirab/g6Kp9Si/44343414832.pdfIn PDF document text
    • https://nazokorebuvawir.weebly.com/uploads/1/3/0/7/130776058/pivewewusiwo.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/Qhjjahd/fastlane_road_to_revenge_mod_apk_android_1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/singer_4423_vs_4411.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/fodupitezon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bac790d2-eb38-4c4a-a65f-c6b94696bd4d/kifeniguju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/820b6d20-f23b-460f-af40-f3d8f70bc164/chinese_learning_books.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_off0000d27e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27E 5116 bytes
SHA-256: bbac24a4814c2422da270c1a2f60bc35512ce4260fc72c53f3246fa33c7fcb94
font_01_sfnt_off0000e3e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E9 9684 bytes
SHA-256: 021e371508f907116a5fc3d047f1607786b037f8b2d16a67a6e56901d3175057

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