Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17778d20636e886…

MALICIOUS

PDF

43.5 KB Created: 2021-05-13 20:28:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7eb911e4e22aaee0a6c4ab3f1c84dfdb SHA-1: a865eb0ca6be0b55799a25c9308e5bdb4d86b3fa SHA-256: e17778d20636e88626d7c502e2b8f80d9787dee61717f82c7b94e9fcbece3886
200 Risk Score

Malware Insights

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

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. These links redirect to malicious infrastructure, specifically a credential phishing page impersonating Apple. The document's structure and embedded links strongly suggest a phishing attack aimed at harvesting user credentials. No scripts were extracted, but the PDF's nature implies it's a delivery mechanism for a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-games-like-roblox-game-hack.
  • 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/free-games-like-roblox-game-hack In PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/mobihack-net-roblox-hack_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_off00004b8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B8E 25816 bytes
SHA-256: da9b95b81e344e2c8afeadc97758fe45789fa63ce9b650cad402efd024c0210a
font_01_sfnt_off0000866e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x866E 18724 bytes
SHA-256: c52aceaf3bf2f28584fb8940f828c012a6342ba7c3f090d8a14e40bb36c01879

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