Malicious PDF — malware analysis report

Static analysis result for SHA-256 30fc5ddd7dc03b5e…

MALICIOUS

PDF

47.4 KB Created: 2021-05-16 13:14:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9078ea67af4fdcf0b740718645d40935 SHA-1: 53cc0c637ebff02ecb1a9694af59b39a09362fa5 SHA-256: 30fc5ddd7dc03b5eb7c678c346a118aa81aaa8b7861f9fe7a4114be698a0d165
200 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to websites offering 'free generators' or 'game hacks', impersonating the Microsoft brand to appear legitimate. These links are identified as malicious redirectors, indicating a phishing or scam attempt. The document body and embedded links strongly suggest a lure for credential harvesting or potentially malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/websites-that-give-you-free-robux-game-hack.
  • 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/websites-that-give-you-free-robux-game-hack In PDF document text
    • http://julo-it.net/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/free-bobux_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://julo-it.net/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://julo-it.net/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://julo-it.net/images/microsoft-roblox_GM431946152.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_003_off00004d4d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4D 26184 bytes
SHA-256: ea12fbd63680f6a570f171b0908283d65143bf78719a43c8e5abeaa8f424f6c3
stream_005_off00009479.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9479 19108 bytes
SHA-256: 6861c41ba735d8f67874cff181a99ea6f9d656df5851b3483f669947649d93e1
font_01_sfnt_off00008a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8E 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132

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