Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04d2f948c030e60…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 22:23:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e37bebc61b5bbef338a7fd430ab54298 SHA-1: c52e0bef73fcccd0cac08c812466443b923bcb6d SHA-256: a04d2f948c030e60c3812a049a21f6ca647578343e5d9f8b4f22494d368be3ea
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to a URL associated with downloading Minecraft APKs. The presence of a visual download button and the lure of a password-protected archive further suggest a malicious workflow designed to trick users into downloading potentially harmful software. The document body, though corrupted, contains references to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/minecraft-apk-free-download-016-0-game-hack PDF link annotation
    • http://www.library.gkigadingserpong.org/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/pubg-uc-hack-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005375.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5375 25512 bytes
SHA-256: 2d122e9cc868af7be2cf825df95811e6ed13b824822b56e41367a53c31a234c7
font_01_sfnt_off00008d72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D72 19080 bytes
SHA-256: f13f0d8e664d8a95e4a41956b425f9fe55b0e7914f7d7dfb5e00b4a0dff36d0a

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