Malicious PDF — malware analysis report

Static analysis result for SHA-256 054e16dc09db0b8b…

MALICIOUS

PDF

33.3 KB Created: 2021-06-26 10:30:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 182f07fb5c123d8db74ea6c7e49182c4 SHA-1: eafcc42e0b80d949841d8bdf7e0ac04497a30c4d SHA-256: 054e16dc09db0b8b5ca7f7146f7ca8294810b9e698f16893741233f8aa6efd3e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, disguised as free game-related content. The heuristic firings indicate the document is designed to lure users to these malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.co/app/479516143/minecraft-mac-free-game-hack In PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-at-http-free-robux-space_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-generator-com_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/spin-coin_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/tiktok-free-views-hack_GM835599320.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_off00003082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3082 21984 bytes
SHA-256: 2feefdf6cffa7c8fed3f3d674e189f73186c840b7aa93844926c9c621efe4ee3
font_01_sfnt_off000060f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F8 17856 bytes
SHA-256: cc1e3add4a04a98446b1b55314af2162444863ccaf169a3449495116b9daf471

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