Malicious PDF — malware analysis report

Static analysis result for SHA-256 50a0578c75a5f979…

MALICIOUS

PDF

42.9 KB Created: 2021-05-11 13:34:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9fc87aecc99e8fa69e76b09d06d4893d SHA-1: b968d7bb46f54156d1d13d64794fb0342b812f71 SHA-256: 50a0578c75a5f9798d48e5e462a4c9c24fdaa417b8f6fe45dc611504086e3fcc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The document body, though partially corrupted, also contains a URL pointing to a similar lure. This suggests the primary goal is to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

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/406889139/free-spin-link-coin-master-app-game-hack In PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/instant-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF8 24564 bytes
SHA-256: f78610649655191dbb65b06b2c9adc6b4e2da1c9801a366e3ee03b44d0fc6753
font_01_sfnt_off00008602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8602 18056 bytes
SHA-256: ebbf7a22afcd0cf508ceb812a131aae4598156f522305d6cc1c9940cc11c625a

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