Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe7f199a3de009e…

MALICIOUS

PDF

44.7 KB Created: 2021-05-19 03:01:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8559706130c671646d8caf5e731c8027 SHA-1: 0083c0e3916c83bae34e7a25dd46c5d63e4c765f SHA-256: 7fe7f199a3de009ed6a69d32aa8496927002baac3743e6a0f89339acb3e9bf0f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, one of which is identified as a known malicious redirector. The document body and embedded links suggest a lure for "game hacks" or "free spins", a common social engineering tactic. The presence of embedded URLs and the heuristic firings strongly indicate an attempt to redirect the user to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/coin-master-daily-free-spins-link-facebook-game-hack In PDF document text
    • http://katalog.ireyogya.org/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-but_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-server-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spin-card-exchange-coin-master_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_off00004a9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A9E 24400 bytes
SHA-256: 8b2c08a71d5764e2a6f3d643281f7f22c067cbaa9d1d0645fcaa60870fe3c50c
font_01_sfnt_off00008162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8162 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B14 18636 bytes
SHA-256: 50d107b0548bd3d005e8b5e4f9cf847a43b3082c8a2089b5591d39299d79db66

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