Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc37e910dc11172…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 07:29:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 15d228d1275956edfa9c4575e40dbc28 SHA-1: 9bfa3bea7230fbf2d6f92416b5a493d454796d4d SHA-256: fcc37e910dc111727bc4ece9ea6217ae5c8db9c4321620930219274201d16086
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering 'free' game hacks and currency, indicating a phishing or scam attempt. The primary lure is centered around popular games like Roblox and Minecraft. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a potential for further malicious activity, such as downloading additional payloads or redirecting to credential harvesting pages.

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.co/app/431946152/c00lkidd-roblox-hack-game-hack In PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-redeem-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-glitches-2021_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-hack-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-cheats-hacks-and-codes_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-hack-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification_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_off000031a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A1 21900 bytes
SHA-256: 099bae10dfa79881d331df72a441c9366c9dd38c452a32e6084bd61dce41d493
font_01_sfnt_off0000620d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620D 19120 bytes
SHA-256: 483b656d7f6f64be5f3d28a2a305d339f290f37447c195bb6debe004fed9ff50

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