Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ae20483b7cf2d50…

MALICIOUS

PDF

44.9 KB Created: 2021-05-13 13:31:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d533741e9ce0cc8843f95835800b1a3a SHA-1: 851897bf839941eb26c0a03059c450e88477a1e2 SHA-256: 1ae20483b7cf2d508b0ff3b67735c6ef08d699914d280d4ec025d256335826a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as offers for free game currency or hacks. The document body and embedded URLs suggest a lure for popular games like Roblox and Coin Master. The primary malicious action is redirecting the user to potentially harmful websites, which may lead to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/431946152/get-me-free-robux-game-hack In PDF document text
    • http://e-mailservis.cz/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://e-mailservis.cz/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://e-mailservis.cz/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48AB 25256 bytes
SHA-256: 6fc661663947e31e7ec9f52dbaf49b3c3e34d9923f99bdee12ac247b503d22a0
font_01_sfnt_off000081b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B7 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_02_sfnt_off00008cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCA 18312 bytes
SHA-256: e3f176f8735a7a9c211288ec5f3dfc0a25536bb398bd4870e4b297ba4f960079

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