Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5fda06f50f4bb2…

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 23:43:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1270fa0fc61b5338b841f1fa9e611e97 SHA-1: 71db13fbb2819691b30562cc74b75a15b2c709a9 SHA-256: 7f5fda06f50f4bb22cc5a35e79f56a4e88e99b4e68a29441b82733bae4149b74
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The document body and embedded heuristics confirm the intent to redirect users to potentially malicious websites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/how-to-get-free-robux-no-verification-2021-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pubg-uc-redeem-code-midasbuy_GM1330123889.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000510f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x510F 27872 bytes
SHA-256: db0afd4890c09565e0aebb6565ec7d1dc61f200769b97b78e3f678469f1aaea8
font_01_sfnt_off00008f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F19 2824 bytes
SHA-256: 1d0cb1023eaa225682b8e7a2c8df4e4c96545ba7eedaf3d9844e51183e9ca189
font_02_sfnt_off000098c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C6 19164 bytes
SHA-256: 96effbdae210045e90f33644c7199b62eda4c51e6e40441412be2e574896d09f

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