Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e92b36c7ce04ea4…

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 00:17:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 82adb8aee9ec60fc022186468ef06e90 SHA-1: 09a804abc66df1d854af50b564b275696775ef5c SHA-256: 0e92b36c7ce04ea4ef9d73fdd88b6e34b1c453ff3264790db852ce4f6939a0c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts further malicious PDF files. The document body contains obfuscated text and URLs related to these lures, indicating a clear intent to lead users to potentially harmful content.

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/406889139/coin-master-hack-version-2021-game-hack In PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/how-to-get-free-faces-on-roblox-2021-on-computer_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/how-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-printable-roblox-coloring-pictures_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/fast-run-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-download-roblox-tshirt-guns_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-glitch-obby_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-download-2021_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-citizen-exploiter-free-robux_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-hacks-no-virus-100-working_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/roblox-dbn-hack_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-hack-2021_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_off000033ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33FF 22996 bytes
SHA-256: 10053ef9c8a83dc0a48fddb4ac38ecc029653e266d7022d2b0657953105d1007
font_01_sfnt_off000067c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C0 18540 bytes
SHA-256: a3ec429ffe06623bd52b1262868956d33dad6a2c24f78999791de678ad1c8db7

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