Malicious PDF — malware analysis report

Static analysis result for SHA-256 484cb77561dd8dcb…

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 12:43:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a44a7bb0d42ebd4f7e662fc6fe338fe5 SHA-1: 765d7a12b40a7168466934cb7d9a8e26bad65204 SHA-256: 484cb77561dd8dcbf3d591323fbd1133311ca53847c65fb716c8e2fd2eb0a373
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and malicious infrastructure, disguised as game-related content. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-for-today-game-hack, which is flagged as a malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites.

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/coin-master-free-spins-for-today-game-hack In PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/robux-best_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/mcpe-optifine_GM479516143.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/roblox-free-download_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/daily-free-spins_GM406889139.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/robux-adder_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/roblox-system_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://daringmanbs.manbengkuluselatan.sch.id/__statics/gudangsoal/files/uprobuxcom-free-robux_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_003_off00004c31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C31 24204 bytes
SHA-256: 522e98ae8fc2155109e3bc4e1e456553883dbb513157587859fe261f65769455
font_01_sfnt_off00008387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8387 18240 bytes
SHA-256: a96ac7afd25cadbabafd1b9dbf0a180d0c1833ed2d07acb4363f122556c39d20

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