Malicious PDF — malware analysis report

Static analysis result for SHA-256 124cad7cae651f88…

MALICIOUS

PDF

33.5 KB Created: 2021-07-06 02:14:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f4626e8c57fbecc9313b83c04397945 SHA-1: 7b33320e4fe3582802f4b5805c17772bbc7268e4 SHA-256: 124cad7cae651f88724aaf79cf9bb043cabac25fdb481a60ee13eeeb35583a50
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 game hacks and currency. The primary malicious link identified is http://netcdn.tw/app/431946152/dominus-roblox-free-game-hack, which is part of a known malicious redirector infrastructure. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

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/431946152/dominus-roblox-free-game-hack In PDF document text
    • https://alisa.com.tw/upload/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/robux-hacks-easy_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-hack-back-your-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-2021-no-waiting-instant-no-inspect_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/hacks-fur-roblox-dinosimolator_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/want-free-robux-now_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/roblox-games-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-get-free-vip-in-roblox-fashion-famous_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-xbox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-hack-into-peoples-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-live_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
font_00_sfnt_off00002d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9F 21740 bytes
SHA-256: 89cad6499ef78c0112c0ebb078ffb6e2b6676c387d8846f6861a57f668c35494
font_01_sfnt_off00005d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D43 19340 bytes
SHA-256: 2baa4a424f72436de07ce77037064002e5e6fbd5f5b1d91ab01ade787eb1f944

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