Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae00ae4b86d0023…

MALICIOUS

PDF

42.1 KB Created: 2021-06-04 04:17:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9744e9d2937c49b1f732fea2b7fba185 SHA-1: cced254cb1125196d69db181795cc4ec44570708 SHA-256: aae00ae4b86d0023c626beb5b1fde492ece5744d2933e9adc75cee6faab73cc8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains an embedded URL and multiple other URLs pointing to sites offering free game-related items, likely as a lure. The ML classifier strongly flagged this PDF as malicious, indicating it likely leads to the download of a second-stage payload. The document body's content and the presence of numerous related URLs suggest a phishing or scam attempt to trick users into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.online/app/835599320/tiktok-accounts-for-free-game-hack In PDF document text
    • http://lib-smansumsel.sch.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-generator_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cbd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CBD 24088 bytes
SHA-256: be022b3bd571174e3cea138c213f996aab87ef1bbc1f59ae1ba7ab8974fd4fc7
font_01_sfnt_off000083c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C6 17596 bytes
SHA-256: 21f614ee77252f6920bdcfbd63d9a81704b1f5a7800cb58c4849a74b7f39d2a5

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