Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b9adb57ff774dc…

MALICIOUS

PDF

43.8 KB Created: 2021-05-12 06:34:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e56101ed0731357e8b7fe38116b997f3 SHA-1: d3d21b67d27a35fa44e7f25e7e9a1f4835837d3d SHA-256: 35b9adb57ff774dcc39e33ade5e24da7debbc5852cd6e7a4f0052250452fb6e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically targeting users interested in game hacks and free in-game currency. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/what-games-on-roblox-give-you-free-robux-game-hack In PDF document text
    • https://inspiration-modellbau.de/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/robux-robux_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/is-minecraft-java-free_GM479516143.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_off00004bfd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BFD 25296 bytes
SHA-256: 0ec5cb6811d493feca66f904141bb1a07d74d1706c75b93cd601a553dc8dc2af
font_01_sfnt_off0000856a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856A 19440 bytes
SHA-256: d075b9cdfa29af0d09f3a3e5cc134cf400d7d34255e3ca0094b6ab529e7e4150

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