Malicious PDF — malware analysis report

Static analysis result for SHA-256 48472b2d2d00f3d5…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 13:06:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c174e516aedc6bbe376385f99a3a78d SHA-1: bb99511dd2604d99cc8c2cb81fa2937f71aeb8c4 SHA-256: 48472b2d2d00f3d58319eced1cfb4137d32102636434fc9aece3d94575b6bbc1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency'. The primary lure is the URL http://netcdn.tw/app/406889139/game-coin-master-hack-game-hack, which is flagged as a malicious redirector. The document's structure and embedded links suggest an attempt to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware delivery.

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.tw/app/406889139/game-coin-master-hack-game-hack In PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-roblox-non-infect_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-and-tix-codes_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-watch-add-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-ser-hacker-en-house-of-keys-en-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-for-free_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
stream_002_off00003387.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3387 23108 bytes
SHA-256: ee20bde78d509167b7682002a052dd7b67b9729e444da3f27b0d5fcb4952522c
font_01_sfnt_off0000674c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674C 18264 bytes
SHA-256: 4883b68d917223b36ebda143fb66fbc926b5e637eedc4d31d59cc59de5fda36b

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