Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fb9b85778ca906…

MALICIOUS

PDF

41.7 KB Created: 2021-05-19 09:43:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9647341284c724684ad318a179536570 SHA-1: 58eb97e430b773fb2a7e74f18c39f7ff0565c0f5 SHA-256: 75fb9b85778ca9061471ad18ac1f0977723951e3c34955ef46f892a9e48dd469
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hack generators. The document body, though partially corrupted, contains text related to 'Coin Master Hacks' and includes the primary malicious URL. The presence of a visual download button further supports the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hacks-for-pet-food-game-hack In PDF document text
    • http://ikig.ru/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://ikig.ru/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/free-coins_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://ikig.ru/images/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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
stream_003_off000046d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D5 26104 bytes
SHA-256: 0f4d1aecf78a79747f6704e186564cb088897304c896d82bab764f474c475c03
font_01_sfnt_off000080de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DE 18208 bytes
SHA-256: 0a85b2d7244c9e40f4d30b416f1cc788558934a6ad40aa5dd3e45362a865324f

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