Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ded114950ab05fb…

MALICIOUS

PDF

41.9 KB Created: 2021-05-19 07:44:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4a640ac9a5e1fa5247f89faa7f87cdf6 SHA-1: 52f1a82cbcf4a26b7e90e3733126670bf855b9e4 SHA-256: 8ded114950ab05fbc4279820c24e93d1a64058bf707fec0657c7da0e19c7399e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'free generator' and 'game hack' lures. These links likely lead to phishing sites or further malware distribution. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting malicious domains under the guise of obtaining in-game currency or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-rewards-robux-game-hack In PDF document text
    • http://www.eptaviation.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • http://www.eptaviation.com/images/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/the-coin-master-hack_GM406889139.pdfIn 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_003_off000048e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E7 24604 bytes
SHA-256: b4e9625f63793dac5c44ffad80a8a804bab63b17d76333b2a7678a6200fd4496
font_01_sfnt_off00008094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8094 18492 bytes
SHA-256: f54db345ef6a05ddcc33e39b82b6da332f4d0f4ab5c2582a6db6f23f2eda51df

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