Malicious PDF — malware analysis report

Static analysis result for SHA-256 458cfd8825391586…

MALICIOUS

PDF

34.6 KB Created: 2021-06-30 23:12:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8d9f80f85f0faa9efa14666ffbcbda73 SHA-1: a1d130b842c634ebb798d057463d7d2b43bf492b SHA-256: 458cfd88253915866a0561bf26e199b78ae11c65799d2780016a97f55044e4db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free in-game currency. The primary lure URL is http://netcdn.co/app/431946152/how-to-use-cheat-engine-roblox-2021-game-hack. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded links and the nature of the lure suggest a phishing or social engineering attack.

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.co/app/431946152/how-to-use-cheat-engine-roblox-2021-game-hack In PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/prison-life-script-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-hack-2021-how-to-get-free-robux-and-more_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/best-free-exploits-roblox_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/como-conseguir-free-robux_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-hackfr_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-boombox-on-roblox-script-pastebin_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/overhaul-roblox-free-shop_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/roblox-free-items-generator_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/tiktok-fans-for-free_GM835599320.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/best-free-roblox-games-to-exploits_GM431946152.pdfIn PDF document text
    • https://mi-alkhairaat.sch.id/__statics/gudangsoal/files/descargar-roblox-hack-adopt-me-para-pc_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300A 22032 bytes
SHA-256: 3be3dc421472d01d981b9f8b40752ecf8a20f6a0de5e8a87a0c6c837309a4631
font_01_sfnt_off000060a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 19444 bytes
SHA-256: 3ee3df5fb0597558371f1a3f7b02b74ca1c10be088d667f4dbf2eb7fca2ae6c6

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