Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c115f0c0fd9988…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 18:27:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e10c685fa234b9dd34466865358355d6 SHA-1: a9a91ccf3dfe5dc42f952f79408d678f2a415980 SHA-256: 17c115f0c0fd99887f67a3f18b305adf6dda7f672aae99c1da7f48af416b7068
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, including one explicitly identified as a 'free generator / game hack' lure. The document body and extracted URLs suggest a phishing attempt to trick users into downloading malicious files related to popular games and virtual currency. No scripts were extracted, but the presence of embedded URLs and the nature of the lures strongly indicate a malicious intent to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/how-to-start-a-minecraft-server-for-free-game-hack In PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/robux-hacker-club_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/ios-robux-hack_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/when-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/free-roblox-robux-giver-download_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/free-redeem-exclusive-virtual-item-roblox_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/pubg-uc-on-discount_GM1330123889.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/optifine-pe_GM479516143.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/how-to-put-in-hacking-scripts-roblox_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/how-to-wear-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://dev.pmrscambodia.org/images/uploadfiles/25-robux-free_GM431946152.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
font_00_sfnt_off00003360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3360 22340 bytes
SHA-256: 96524885f7b3508e0d4a46fb0a65f2ec0d31046441c33cec7a2c233c7cc67b96
font_01_sfnt_off000064fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FC 18276 bytes
SHA-256: 5b06d09b2e4d23638ce6d3b7da2950f972f4b341437fc5afd30f64d4b098dc56

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