Malicious PDF — malware analysis report

Static analysis result for SHA-256 607f6357e42776f1…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 07:05:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3877d5e6d833c7b0e3db41c6e42e4985 SHA-1: b917dfdab17bb61b4176ba6408047e2c597b115a SHA-256: 607f6357e42776f15889f009eff10692fe9707138763763474051de371db0eaa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free game currency or hacks. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-insect-no-waiting-game-hack, is flagged as a malicious redirector. The document body and embedded URLs indicate a social engineering tactic to drive traffic to potentially malicious sites.

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/how-to-get-free-robux-insect-no-waiting-game-hack In PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-hack-peoples-account-2021_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/retail-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/roblox-free-robux-hack-2021-generator-cheat_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.takathmanduhotel.com/userfiles/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A7 22236 bytes
SHA-256: 47c44ab51b864f64b836e9573815c25390ccfd04e56bac12cdcab3af1d436e18
font_01_sfnt_off0000620e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620E 19304 bytes
SHA-256: 2ff2d48359a65cdc26eea05fa9aa50a338ede3447dfbf6dc4b48551cdf7bacbd

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