Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64dd8b259378fa7…

MALICIOUS

PDF

41.3 KB Created: 2021-05-15 05:06:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0eb0ee1b8142cfb00710c281e67ae0a8 SHA-1: 07ce40dd0bce49d2ed200e5efb347ebdec807c7d SHA-256: c64dd8b259378fa7e2624cf1695176b8ded8f5f80a257084ad7429acafad430d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to 'Coin Master Hack' and contains multiple embedded URLs pointing to potentially malicious redirectors or content. The presence of these links, combined with the heuristic firings for malicious redirectors and game hack lures, strongly suggests a phishing or scam attempt designed to lead users to malicious websites. While no scripts were explicitly extracted, the nature of the embedded links and the document's content indicate a likely attempt to exploit user interest in game cheats for malicious purposes.

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-hack-no-survey-or-verification-game-hack In PDF document text
    • http://muko-unterfranken.info/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://muko-unterfranken.info/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://muko-unterfranken.info/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://muko-unterfranken.info/images/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://muko-unterfranken.info/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://muko-unterfranken.info/images/minecraft-bedrock-server-hosting-free_GM479516143.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
stream_003_off00004706.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4706 24500 bytes
SHA-256: ecaa3a6d7d607961069df22bc056c7fabd963590ebdf6fa51c5949f484d139ea
font_01_sfnt_off00007edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDD 18284 bytes
SHA-256: 11bfbc115034705528bf6e10e44e61aa29d499e253164c4385166f501b43b311

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