Malicious PDF — malware analysis report

Static analysis result for SHA-256 7156bc3e414ebfaa…

MALICIOUS

PDF

42.2 KB Created: 2021-05-12 06:35:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6db82b936d254cee43577e6f51d2821 SHA-1: 0724f81fcc74d72a59b3774dec94d8cd7a19a333 SHA-256: 7156bc3e414ebfaa0e7cc14b154b2e19e1d1b901e0b92a83ab7b3de44fa46455
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a critical link to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for 'game hacks' or 'generators', suggesting a phishing or malware distribution attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/479516143/how-to-make-a-minecraft-server-for-free-java-game-hack In PDF document text
    • https://domoticaaplicada.com/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/hack-download_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/easiest-coin-master-hack_GM406889139.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_003_off0000480b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x480B 25568 bytes
SHA-256: b1f7f4710dcc6fbd90e872ea516fc9ec085da308f864eb7bd8f294249fcc3a9b
font_01_sfnt_off0000825f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825F 18324 bytes
SHA-256: 8b4800acb7384bcfa67487ca78fa1370069e5af6aca7e30b38108085ab0232c0

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