Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a29606a95baa4ae…

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 10:37:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ed3eab3016243bc75c5eba73aa2ae999 SHA-1: 55023aec360a5900871bf70f7f832aefee652bd5 SHA-256: 0a29606a95baa4ae81c932a749baed580e4932cac414173ba52f0770d580bdc2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of 'free Robux' or 'game hacks'. The primary link directs to 'https://netcdn.xyz/app/431946152/free-ways-to-get-robux-game-hack', which is associated with malicious redirector infrastructure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or downloads.

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/free-ways-to-get-robux-game-hack In PDF document text
    • http://haertetechnik-steinbach.de/images/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://haertetechnik-steinbach.de/images/free-robux-no-verify-2021_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_off00004bea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BEA 25668 bytes
SHA-256: bdeae930c707ab143f8275c7c329bb266f0dd965268acb1a194ce5c0ed22d907
font_01_sfnt_off000086d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D8 18724 bytes
SHA-256: 4748f019d46a9554f00c7c8cf9bb59ec204dfb95bc520e2d25b5a7c8ef81b270

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