Malicious PDF — malware analysis report

Static analysis result for SHA-256 784a82d22b8058c2…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 01:41:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e6f0b73e008c25d67763a5668cb48e46 SHA-1: aad034210141b07752a9f487963be1a827cc8ca4 SHA-256: 784a82d22b8058c2f64c8908a3d56a8a966057c8dd0824c2e7e7862cf7684694
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically promoting a 'game hack' lure. The embedded URL http://netcdn.co/app/431946152/procodes-roblox-hack-game-hack is identified as malicious. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/procodes-roblox-hack-game-hack In PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/tuto-comment-avoir-des-robux-gratuit-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-tool-hack-tool-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-roblox-accounts-easy_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-discord-webhooks_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/games-for-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/como-hackear-el-pin-de-una-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-no-inspect-no-info_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EA 21872 bytes
SHA-256: 18922d35afb8c6c87d9632d01ec15cf3c5487f39551cbbe1dfca21b733e3ee3b
font_01_sfnt_off00006133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6133 18984 bytes
SHA-256: 4aa363ad9448d1674f78f5202e6fac3b3944da24b1ba6117031f722511aba186

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