Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c11c13a0b04fdd0…

MALICIOUS

PDF

45.0 KB Created: 2021-05-13 14:06:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49b9e3332681875df65726d41d867ddf SHA-1: 62215fab796f2dbe51bb9ae497edfab770f79f8c SHA-256: 4c11c13a0b04fdd07ef41537ba9c1588222d6d0a88725d498c15dcc44487f3cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks and free spin generators for popular mobile games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-links-for-free-spins-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack aimed at driving traffic to malicious sites, likely for further malware delivery or credential harvesting.

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/406889139/coin-master-links-for-free-spins-game-hack In PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/com-roblox_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-hacks-xbox_GM479516143.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_off00004973.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4973 25940 bytes
SHA-256: ee76a231cf851a80a80ccd8d3597d618360a642fa2c7f09dce63130e39010bbe
font_01_sfnt_off0000837d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 3000 bytes
SHA-256: 56ee3cf210babcab1d595ec3cc7d666f7a646b8ea00ab1e6563ebd84f84582f8
font_02_sfnt_off00008ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDD 18056 bytes
SHA-256: 95118de0f1fa2d9d8d6d34d7ce9f6e9c56d43c25fce4d2a4bd556d275959b9e0

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