Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1d11ae1eb3a31b…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 16:25:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25ef2c4f5251eed9d025b18946e7be5d SHA-1: a312fcacda11c6f12f48b157f8ae0cf34b5c4091 SHA-256: dd1d11ae1eb3a31b8c8a6c6f5cb511695cff2e4482d8795589757b1221db447d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that lead to known malicious redirector infrastructure, specifically advertising game hacks and generators. The document body and heuristics confirm the intent is to lure users to these sites, likely for further malicious activity such as credential harvesting or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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 http://netcdn.tw/app/431946152/roblox-hacks-com-game-hack In PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/roblox-hack-menu-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/pokemon-go-hack-free-pokecoins_GM1094591345.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/how-to-make-roblox-items-free_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/free-savage-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/robux-claimer_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/roblox-giving-away-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min21jkt.sch.id/__statics/gudangsoal/files/which-pubg-uc-is-best_GM1330123889.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_off00002f04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F04 21952 bytes
SHA-256: 845b4a04202b8d08f6da24b1040aadf8be3f5c687bf4d68cc7bae03a18c57d06
font_01_sfnt_off00005f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6D 18916 bytes
SHA-256: 5602ec78d0973736e8df03d49b0c299d43ad09969882d8f10ad3423cf39d9468

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