Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd369ffa64e77f33…

MALICIOUS

PDF

48.4 KB Created: 2021-06-02 15:27:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 06b88c5a5a37564dc97bf0713460949d SHA-1: e44c9c99765a18242957f9b4679701af2c4d4908 SHA-256: fd369ffa64e77f3366961825992988c813823feb8b49eddbc7ef2355bfc5441c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to a 'free generator / game hack' lure. The document body, though heavily obfuscated, contains URLs that are likely part of a phishing or scam campaign. The presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to malicious content, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.xyz/app/431946152/roblox-hacks-for-epic-minigames-game-hack In PDF document text
    • http://magnipsor.su/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fc7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FC7 25376 bytes
SHA-256: 7b3034c9e54d985090ecdcc6ca2661f8e02b820a8f69150c167d3b8bd6f4187b
font_01_sfnt_off00008a94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A94 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off0000973c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x973C 19388 bytes
SHA-256: f1fae94e0280031b1978ff1945faa481ae6e0b922d30e318311345306fcca5e5

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