Malicious PDF — malware analysis report

Static analysis result for SHA-256 63081c9195ced01b…

MALICIOUS

PDF

55.0 KB Created: 2021-05-16 00:45:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 24db0603ee9f69fe2e61a7c1525a4fda SHA-1: afc9d61757abc9f818c5cd2c3aed3b0d81c44ab1 SHA-256: 63081c9195ced01b74293aae0213cf3592ff5ac79e4153f5b700465f278f1394
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising "game hacks" and "free spins" for popular mobile games. The primary redirector URL, https://netcdn.xyz/app/406889139/coin-master-200-spin-link-game-hack, is a strong indicator of a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious workflow designed to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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-200-spin-link-game-hack In PDF document text
    • http://schottlandfieber.de/images/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://schottlandfieber.de/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://schottlandfieber.de/images/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://schottlandfieber.de/images/robloxfun-com-generator_GM431946152.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0C 26432 bytes
SHA-256: 336dfe28e875aeda81605a6b41114f509544a61396f0a14b86a38a4d68fdb376
font_01_sfnt_off0000883f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883F 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off0000930a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930A 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA630 18188 bytes
SHA-256: a35637ca0c1e73344ae8561ebd99d9fe87a1140cef0d47f6130cbc63d3e5cf49
font_04_sfnt_off0000c82e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC82E 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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