Malicious PDF — malware analysis report

Static analysis result for SHA-256 61ac9067454df326…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 00:30:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 50b503421b4cd9c07650a7d26adf99b5 SHA-1: 898df5f1ed61207be0d8e739fd37e3b1b03f6103 SHA-256: 61ac9067454df32652de68c0bc84c09cec1c4a77cda0d252fafa35174d9a06c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure appears to be a Minecraft hack, directing users to http://netcdn.tw/app/479516143/minecraft-hack-app-game-hack. The document's structure and embedded links suggest it is designed to trick users into visiting these sites, likely leading to further malware downloads or scams. No scripts were extracted, but the PDF's nature points to a social engineering attack.

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/minecraft-hack-app-game-hack In PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://kakipalsupekanbaru.com/ckfinder/userfiles/files/village-coin_GM406889139.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_off00002fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE9 21824 bytes
SHA-256: a478cf2a5504973a3436237ea207740cf70181a8167e2756e46b8ea33a028b41
font_01_sfnt_off00005fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE8 18204 bytes
SHA-256: c1185779461864b36b9820a1fc6c8f9e9cb6b26e9ea910c27505907d0185e4b6

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