Malicious PDF — malware analysis report

Static analysis result for SHA-256 45c95139395c4c9a…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 18:31:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4448f7cf19b94b55bce0730be6d1af9a SHA-1: 097b023030e84f15156addb9213b7daf774f8b03 SHA-256: 45c95139395c4c9ae60edb06e32ab59eb270377b654675c016ad3f3f488abd28
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The document body, though partially corrupted, also contains similar URLs related to game hacks. The presence of these links and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/roblox-free-clothes-hack-game-hack In PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/minecraft-menu_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mi-alihsan-berau.com/__statics/gudangsoal/files/free-spin-and-daily-news-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b63.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B63 25656 bytes
SHA-256: 7dd894a80b8044a40d7af653c56fba7e484f7171031f5e0c85967ee41430d2f8
font_01_sfnt_off000085cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CB 18616 bytes
SHA-256: 103feac3cc5aa8b61edffdeede0b2c422429be550018f77d71a4c0e7d6940ea7

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