Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ac37d5ed304d65…

MALICIOUS

PDF

43.3 KB Created: 2021-05-14 07:04:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ac5831c8541e84034abe63662c3bcba9 SHA-1: c6a2c20795387031244ec22e4521f079a98fdcf8 SHA-256: 17ac37d5ed304d6567f104705ac33c3384aa8540fb95e357d41b89a9a3561753
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising free game items or hacks. The document body and embedded URLs suggest a lure for free game accounts or cheats, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent to redirect users to potentially harmful sites.

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/479516143/free-mojang-account-with-minecraft-game-hack In PDF document text
    • http://hardbit.cn/images/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/coinmaster_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://hardbit.cn/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://hardbit.cn/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://hardbit.cn/images/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://hardbit.cn/images/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e10.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E10 25196 bytes
SHA-256: df0b22c2eb089d525e01af36a6d70abc656789807eefc9d09b8c8ad0dbc75c84
font_01_sfnt_off000085ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CE 18688 bytes
SHA-256: 60143c81e88e14cdfb7631f3b4f61d617c046054e7601d01d98adb150323207f

Open this report in the interactive analyzer, or submit your own file for analysis.