Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84698d5f00e599d…

MALICIOUS

PDF

44.7 KB Created: 2021-05-13 19:06:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3de02a6458b6eb02f542b64640421a2c SHA-1: a64a7e53435d6c951ac9579b8da72aabbf425663 SHA-256: c84698d5f00e599dfeeb2ad3748e56a07ba543fe029ad0203b3eec7ba8aa2ad0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to a known malicious redirector infrastructure, which in turn hosts other malicious PDFs. The document body and extracted URLs indicate a lure for free game currency or hacks, a common social engineering tactic. No scripts were extracted, but the PDF structure and embedded links strongly suggest a malicious intent to redirect users to further compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/feb-23-2021-free-coin-master-spins-game-hack In PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/wurst-mc_GM479516143.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/mathep_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • http://minurispenjaringan.sch.id/__statics/gudangsoal/files/free-clothing-on-roblox_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
font_00_sfnt_off00004cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC3 25784 bytes
SHA-256: ad4692913f0f7ea8b99fa33485c0850b15a6e0ae1814ec32dabfdfccf28f6379
font_01_sfnt_off00008742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8742 19948 bytes
SHA-256: ac30df1bce448d73edfea14b1857fca9ede49e496168614979ef487f6f1c1b40

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