Malicious PDF — malware analysis report

Static analysis result for SHA-256 20772eb7e9173480…

MALICIOUS

PDF

50.5 KB Created: 2021-05-16 01:39:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3642d2c6554033685e89385a0c953f2a SHA-1: 936407ebba6d0f8cdbdca20dff80407ae52f04b8 SHA-256: 20772eb7e9173480dcfa8ebbb07fdaac3ebeb1a638978793c33e099a558251b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector infrastructure at 'https://netcdn.xyz/app/431946152/does-roblox-premium-expire-game-hack'. The document body and heuristic firings indicate a lure for 'game hacks' or 'free generators', suggesting the intent is to trick users into downloading malware. Although no scripts were extracted, the presence of malicious links and the lure pattern strongly suggest a downloader or redirector attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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/does-roblox-premium-expire-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/what-is-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-websites-that-actually-work_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB3 26332 bytes
SHA-256: 3dbad6cdd1483c49749f4731c193214ce6ed9f237e11f27d79e475020331bb25
font_01_sfnt_off00008a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8B 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9437 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA148 18804 bytes
SHA-256: d678fd6a1bc8839950e26379efcb538c09795d0b2d64a023aa376d6a81e8ae9e

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