Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d54280923ea5503…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 06:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fd1a1dce1ab6f83e098c347b730314a SHA-1: dd4ff0dcc4a7782e8b22310166bff8b1e73699fb SHA-256: 2d54280923ea550363fde20307cfe27d42eb4d0cacc9bcdc9e1fe8848a04f1ef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body and embedded links reinforce this lure, aiming to trick users into visiting the malicious URL. While no scripts were extracted, the PDF structure itself facilitates the redirection, indicating a phishing or scam attempt.

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/how-do-u-get-robux-game-hack In PDF document text
    • https://iear.com.tw/image/data/files/ww-roblox-come_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/robux_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-website_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/claim-roblox_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/minecraft-hacks-pc_GM479516143.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_off0000487e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487E 27652 bytes
SHA-256: fbbc7bad69b47e1ef3ce7d9d88333220630dd82e894547ad700ffd92f77b1630
font_01_sfnt_off000087d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D1 18472 bytes
SHA-256: 71283823db02c462beb1b606a506df366db972f956f81b439aa451df7a48f5a7

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