Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a0659bb5fafde1a…

MALICIOUS

PDF

44.7 KB Created: 2021-06-08 16:38:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 466559af5ca9ef52c316dfbaaca09927 SHA-1: 9708421633f0b28b73512c862b284300c03dde04 SHA-256: 3a0659bb5fafde1ae3002ed1be8c8a72fa6b0576caf872158fd881e846d9c71c
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and websites promising game hacks and free in-game currency, such as 'fencing-hacks-roblox-game-hack'. The ML classifier strongly flagged this PDF as malicious. The presence of these lures and the ML detection indicate a phishing or scam attempt designed to lead users to potentially harmful content or further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/fencing-hacks-roblox-game-hack In PDF document text
    • http://possumholler.us/images/how-do-you-make-tshirts-free-roblox_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/tiktok-free-like_GM835599320.pdfIn PDF document text
    • http://possumholler.us/images/como-descargar-hacks-para-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/roblox-person_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://possumholler.us/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://possumholler.us/images/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/coin-free-master_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://possumholler.us/images/free-gold-cards-coin-master_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
stream_004_off00004ef3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EF3 25560 bytes
SHA-256: 67179605bddd267192c9621cefed1c1e3ba16202ea6b41d2e929eaaf3c189dde
font_01_sfnt_off00008aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA5 18752 bytes
SHA-256: 2440c09275e45056ac9f28b5a3a711e43a25a721abd918d23588d6ff8db94e7b

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