Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cc63a7f5997c7dc…

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 23:32:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3bc593f7ca1e395e1a9cd74b8d9b2cb8 SHA-1: 785df7f471cd3c5c69863d3683e5c95fcd8ecb09 SHA-256: 8cc63a7f5997c7dcc0d4bf03eaab0535b0e33795fb964e5fefda6b1af91ddbe9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. These links likely lead to further malicious content or downloads. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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.co/app/431946152/free-t-shirt-roblox-my-hero-academia-game-hack In PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/robux-cheat-download_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-hack-pritty-face-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-free-shavacadoo_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/cheats-in-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-rs-500-roblox_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/get-free-robux-without-human-verification_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
font_00_sfnt_off00002ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDC 22536 bytes
SHA-256: bb2e68662bbd8e0840b9bf515a1651ea89ef20b4f0dbb8c49e5f7692dd591f05
font_01_sfnt_off00006021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6021 19696 bytes
SHA-256: af2547bfaf2d737c89db903bcacd462271435b4c38229d581fa0c05f344091c5

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