Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd31cfaedd02f186…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 13:01:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1a7b8af24d88c48c096ff479fb1d5c40 SHA-1: 32e2617ee994c47a0a28c77b8a68e0917ea11633 SHA-256: fd31cfaedd02f186fe7034a917b818284cfc442e7de159562f1ce88e6ea5198e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that redirect to a known malicious domain, masquerading as a game hack generator. This lure is designed to trick users into downloading or executing further malicious content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/hacked-client-for-minecraft-bedrock-game-hack In PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-re_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-robux-hack-2021-for-computer_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-rare-name-generator-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-change-name-in-roblox-free_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-hack-scripts-exploit_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/qidqeo-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-hack-roblox-2021-september_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-robux-legit-serious-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-cheat-list_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/minecraft-dungeons-free-download-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
font_00_sfnt_off00003034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3034 22852 bytes
SHA-256: e81d4c7f2b48a05ed7d183c29f462a73d2971e47a45dde0088dfddfd3817f996
font_01_sfnt_off00006395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 18632 bytes
SHA-256: 1597258b0313286761e748ab166835546223df5d32c684e17f237f0d5698bb4f

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