Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9aeb28662f6ea66…

MALICIOUS

PDF

91.2 KB Created: 2021-03-04 01:35:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d594097faf5ffeab6eb4609c771883a3 SHA-1: ed21c7152db42893f87f2ed494f27177fda9e430 SHA-256: d9aeb28662f6ea66ea1eb768d8a520b4552606251c4319746cb7714611a73141
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://jottigo.ru/award?keyword=what+is+big+nate+about PDF link annotation
    • https://cdn.sqhk.co/definuseju/jcJigjf/76736665060.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427504/normal_5fc6065140f24.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/the_heart_of_change_book_summary.pdfIn PDF document text
    • http://lamejix.scienceontheweb.net/68240079856.pdfIn PDF document text
    • https://cdn.sqhk.co/nakunadubux/U9micih/raid_max_ant_bait_dog_ate.pdfIn PDF document text
    • http://pedagodogiko.getenjoyment.net/best_place_to_read_marvel_comics_free.pdfIn PDF document text
    • http://kaxiwemusemoj.mypressonline.com/what_is_the_song_moonlight_on_the_river_about.pdfIn PDF document text
    • http://neditaxuvim.getenjoyment.net/what_is_rational_fasting.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413120/normal_603712b10cea1.pdfIn PDF document text
    • http://bikejesoxatelo.mygamesonline.org/31861293643.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/jjbLiic/portugal_games_euro_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423752/normal_6032a3b25188b.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/fE5Byie/ralokokuwepovatopekesu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490746/normal_5feb55766f079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369519/normal_603aa73539a6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366949/normal_5ff4333d5846a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vigavanoxe.onlinewebshop.net/rilafoxemave.pdfIn PDF document text
    • http://bajupigirosinaf.atwebpages.com/movies_like_fifty_shades_of_grey_on_amazon_prime.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_off00012b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B03 4972 bytes
SHA-256: 5fc89cc39cb1129e17a01141fc0364851823ade05fdec0a43b44aa274e2e19fe
font_01_sfnt_off00013bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BFC 10504 bytes
SHA-256: 91457cfcb94d6b5186acac1cbfb1204b04bfcc85c0471622364e916d8181c50e