Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b35774b0eb6fb11…

MALICIOUS

PDF

45.4 KB Created: 2021-05-15 16:41:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d7ddb66d93a420afde162a29a66cd53 SHA-1: f375d4ac18e59075c7bb089215112dadb9ad0bf3 SHA-256: 3b35774b0eb6fb1109dec0c30cdb86dcd0646d13bd60f60cd695d3b59936bb30
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded URLs and a visual download button lure, suggesting an attempt to trick the user into downloading a secondary payload. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external links related to game hacks indicates a social engineering tactic to entice users to click and download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/is-minecraft-java-edition-free-game-hack In PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/robux-rewards_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://elearning.mtssadat.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bd4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD4 25040 bytes
SHA-256: dbcd1151ab105ccb596862ef460ffb82db00fa58560694417dc2380f5b0d9913
font_01_sfnt_off000084e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E7 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off00008f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5A 18164 bytes
SHA-256: 781be49a7702cf06049b723b9768b43598e981f21f4500b8f56603e8064b4811

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