Malicious PDF — malware analysis report

Static analysis result for SHA-256 037ef23d34950909…

MALICIOUS

PDF

33.5 KB Created: 2021-07-19 18:40:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0f657edde49da6e69b01f23fa7bf3107 SHA-1: 4d49b2c98d12fb494bc7d50c47aedff45177b330 SHA-256: 037ef23d349509095559ffc12fe8642f80af621496c6b1c30b7941fd55a1677c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' or 'game hacks' for popular games. The document body explicitly contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', further reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://netcdn.tw/app/479516143/minecraft-free-download-game-hack In PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalyusra.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E72 22632 bytes
SHA-256: a8d8fcc0752a16ac6c44cdab96f191be7c20244917cd23b95e530249f5ff7dbc
font_01_sfnt_off000060ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EF 18292 bytes
SHA-256: eff5919d985126b8591bb7cd3dea6a103dcf6f67049ada279646be2986fdbf31

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