Malicious PDF — malware analysis report

Static analysis result for SHA-256 d494d45fbf422e80…

MALICIOUS

PDF

44.2 KB Created: 2021-05-13 05:01:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 249f103a5bf7d12dc1fbee09d04ee5df SHA-1: 28b717c6f2d967c9da2c6ef2eb0cf2973d0e6ea0 SHA-256: d494d45fbf422e80a6c0381dd6343ad67aaba0dfd0e2683a6c847bcd8e09638e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites promising free in-game items and hacks, a common lure for malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous embedded URLs and the nature of the lure suggest an attempt to redirect users to potentially harmful content, possibly for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/free-spins-on-coin-master-link-game-hack In PDF document text
    • http://eooe.gr/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/make-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/free-robux-no-verification-no-download-2021_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_off000045cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45CB 24888 bytes
SHA-256: 9ac0a38e8abc266f6105e312f97b0a6ee32ca0cd539a5659b760d2415301f3c2
font_01_sfnt_off00007e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E19 3620 bytes
SHA-256: a7ffd47631dfdffd19913a7d019e14a4e4f6584a4e894343a0be0687632311e4
font_02_sfnt_off00008adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADB 18056 bytes
SHA-256: 892ebf3b86ae534fd3f474e2c239da2a9bb4dc91f8225dc09222a78aadec1336

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