Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d7e0cc7b41d848…

MALICIOUS

PDF

45.6 KB Created: 2021-06-04 02:32:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db44d083f943be07ef5dfe80d438e486 SHA-1: dbc29fd40b713890773984fb94e364d3b24ce395 SHA-256: c1d7e0cc7b41d84885ca29b014f54edc2c74c51d1d7d2b9c67482a332b10c7fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically advertising "game hacks" and "free generators". The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-in-app-purchase-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering lure to drive users to malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/coin-master-in-app-purchase-hack-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/wurst-112_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-servers-that-allow-hacks_GM479516143.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_004_off00005050.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5050 30584 bytes
SHA-256: d7d2dd8421847b79a3badeee93d3444423bb7109b7f40a8da20b9d22143464d5
font_01_sfnt_off00008f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 18352 bytes
SHA-256: 37c61889bff08c2bddd56bfb017dd32b1bdcae49f78bbe236cb4c9fcda307a6c

Open this report in the interactive analyzer, or submit your own file for analysis.