Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe16e80f028f2aa…

MALICIOUS

PDF

44.4 KB Created: 2021-05-14 15:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 54344a76352f66caf3e2c1cf8929effe SHA-1: 14d6845eff27b76ce763b66d8bc41b3f00ae9063 SHA-256: cbe16e80f028f2aa1f4c8c9d032de1f4f63afe7420cc7807b64fcc08d1b9564f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically targeting users with lures for game hacks and free currency. The document body and heuristics indicate a redirection to a known malicious domain, likely to facilitate further malicious activity such as malware delivery or phishing. No scripts were extracted from this sample, but the presence of multiple malicious links and the ML classifier output strongly suggest a malicious intent.

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 https://netcdn.xyz/app/431946152/free-robux-card-codes-game-hack In PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/master-coin-free-link_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_off0000491d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491D 30188 bytes
SHA-256: 8149a984aabb3621ae02e6251f42f22b51376786a828dc8cc94e15f24e63ed32
font_01_sfnt_off00008ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD8 18416 bytes
SHA-256: 79c56a0f23d4fc34690a575a065be14b64911c3c5a3331038291264b4b7107af

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