Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca03aa6009b91452…

MALICIOUS

PDF

44.6 KB Created: 2021-05-14 22:09:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e77f65d0800a756a3f2b6a99f71afc4b SHA-1: 92abea59be10f6fc01f9cb3e39455354083ea000 SHA-256: ca03aa6009b914521b9045f4691bbe294f952481103dab33e747148111124fd6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link that redirects to known malicious infrastructure, disguised as a "free generator / game hack". The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links strongly suggest a phishing or redirection-based attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-bedrock-minecraft-game-hack In PDF document text
    • http://fccsms.com/images/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/rbxdemon_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a5f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5F 24652 bytes
SHA-256: 3dce65b0f5ac53fd183c6a90a9a710692fc5ed3ba50c089a25d5392581ff31fb
font_01_sfnt_off00008209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8209 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF3 18268 bytes
SHA-256: 05ed720d8c36cfe0e57c7fbe1498521d5bd0f1bc1658fa5d78b5dc7504aada24

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