Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd56de109dd698bf…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 14:06:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 57bbf7a2498cf09e4551f1eb0c2c9466 SHA-1: dea1e8ebaded5f7c4b4c2350cf908cf95a5e501f SHA-256: dd56de109dd698bf1aa502e26652c86079c11f87b524d908da95c579f6ca0530
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://netcdn.online/app/406889139/freespinandcoin-blogspot-com-game-hack PDF link annotation
    • http://elibrary.smknesbu.sch.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-fire-tik-tok_GM835599320.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/grabpoints-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-generate-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2F 24032 bytes
SHA-256: 709604b1f97fb78a911c77e17b08ee52baf6dcac78bf988a151611660b993a50
font_01_sfnt_off00008602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8602 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00008fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FED 18900 bytes
SHA-256: 0bd07ae10b4135fe6bf307be1017512cce62593240b8ef3e9f0b310f171768fe

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