Malicious PDF — malware analysis report

Static analysis result for SHA-256 197f824efeb74a39…

MALICIOUS

PDF

48.1 KB Created: 2021-05-18 04:20:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 477b963e4d39d74ec258d987c76d04c9 SHA-1: 095b3db45cd9611bfc83641e26b3633ec7fb6e9b SHA-256: 197f824efeb74a39bf9864c9b6ec7ca4d2fa4f38ee01c2b03dc0f9e7abfe0bd3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'game hacks' or 'free generators'. The document body, though heavily obfuscated, contains references to these lures. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/479516143/how-long-is-the-minecraft-free-trial-game-hack In PDF document text
    • http://cepobajodeva.com/images/robux-rewards_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://cepobajodeva.com/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-unlimited-spins-apk-free-download_GM406889139.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_off00004d2d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D2D 29596 bytes
SHA-256: 17340adea84d03961d8e73b5e693ac991f7a44645b360b164dcc2c35ea764491
font_01_sfnt_off00008f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F40 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00009980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9980 18404 bytes
SHA-256: a06c3727584f03e67681882c5fba84b6811554b03e9a9932a6f4547f5427a867

Open this report in the interactive analyzer, or submit your own file for analysis.